What's the best self-hosted password manager that I can run on my company's own servers for maximum security?

For a company that wants to self-host on its own infrastructure and maximize security, my first choice would be Bitwarden Self-Hosted.

My ranking

1. Bitwarden Self-Hosted — best overall for most companies

• Open-source and regularly independently audited.
• End-to-end/zero-knowledge encryption: the server stores encrypted vault data rather than plaintext passwords.
• Proper organization features: groups, collections, permissions, event logs, and SIEM integrations.
• Officially supported self-hosting, rather than relying on an unofficial server implementation.
• Supports enterprise security/compliance requirements, including SOC 2/3 and ISO 27001.

bitwarden.com 2. Passbolt — excellent if your priority is team credential sharing

• Particularly interesting for security-conscious IT teams because it uses OpenPGP, per-user key pairs, digital signatures, and granular access controls.
• Can operate entirely within your network and does not require Internet connectivity by default.
• I'd seriously consider it for a security/IT department where cryptographic control and auditable sharing are more important than convenience.

passbolt.com 3. Vaultwarden — great technically, but not my choice for a security-critical company

• It's lightweight and popular, but it's an unofficial Bitwarden-compatible server. Bitwarden explicitly says it cannot guarantee that its official clients will work perfectly with non-official servers.
• For a personal server or small homelab, that's a compelling tradeoff. For corporate credentials, I'd rather have the vendor-supported implementation.

What I'd deploy

For a serious company, I'd use:

Bitwarden Self-Hosted + dedicated hardened Linux VM + private network/VPN + hardware-backed MFA/passkeys + SSO/IdP + strict RBAC + centralized audit logging + encrypted, offline backups.

The important distinction is that self-hosting isn't automatically more secure. You gain control over the infrastructure, but you also become responsible for patching, backups, TLS, network isolation, monitoring, endpoint security, and incident response. Bitwarden itself notes that its cloud deployment can be more practical for teams that don't have the operational capability to maintain secure infrastructure.

For maximum security, I'd also avoid exposing the password-manager administration interface directly to the public Internet. Put it behind your corporate identity/access layer or VPN, require phishing-resistant MFA (preferably FIDO2/WebAuthn/passkeys), and make the server itself a tightly isolated asset.

Bottom line: Bitwarden Self-Hosted is the safest default recommendation for a company. Passbolt is the strongest alternative if you specifically want an OpenPGP-centric, highly granular team-sharing model. I would choose official Bitwarden over Vaultwarden for business-critical credentials.

If you tell me roughly how many employees you have, whether you use Microsoft 365/Entra ID or Google Workspace, and whether the server must be completely air-gapped, I can give you a hardened reference architecture and deployment design.

The best self-hosted password manager for running on your company’s own servers with maximum enterprise security is the official Bitwarden On-Premises Solution . It provides an industry-standard, zero-knowledge architecture paired with the enterprise-grade access controls, audit logs, and directory integrations necessary for a corporate environment.

While there are several excellent open-source alternatives, the right choice depends heavily on your company's scale and security infrastructure. The top four options stack up across key deployment areas as follows:

Top Self-Hosted Password Managers for Businesses

Detailed Breakdown of the Top Choices

1. Bitwarden On-Premises (Best Overall Enterprise Choice)

• Why it wins: It bridges the gap between total data sovereignty and corporate compliance. You run the entire stack on your infrastructure while maintaining access to polished cross-platform applications.
• Enterprise Features: Seamlessly plugs into your IDP via Single Sign-On (OIDC/SAML), supports SCIM directory provisioning, and outputs exhaustive event logs for your SIEM system.
• Security Architecture: End-to-end encryption ensures that even though it runs on your server, the server itself cannot decrypt user vaults.

2. Passbolt (Best for Tech/DevOps Teams)

• Why it wins: Passbolt was built specifically for teams and sysadmins who need to share passwords securely.
• Security Architecture: It utilizes an asymmetric OpenPGP-based model. The server acts purely as a cryptographic post office, making it provably impossible for a compromised database to expose plaintext secrets.
• Enterprise Features: Deeply integrated access control lists (ACLs) let you manage granular permissions across different administrative tiers.

3. Vaultwarden (Best for Small Tech Companies)

• Why it wins: If your company is a small startup or tight on DevOps resources, the official Bitwarden stack can be overly heavy to host. Vaultwarden is a lightweight alternative written in Rust that is fully compatible with official Bitwarden web, desktop, and mobile apps.
• Resource Impact: While official Bitwarden spins up multiple heavy Docker containers, Vaultwarden operates out of a single container using under 50MB of RAM.
• Security Architecture: Uses identical end-to-end encryption protocols to Bitwarden. However, it lacks native enterprise directory integration (SSO/SCIM) without complex third-party workarounds.

4. KeePassXC (Best for Maximum Isolation)

• Why it wins: For true "maximum security" where you want zero network footprint, KeePassXC eliminates the network entirely.
• Security Architecture: There is no server application. Passwords are saved into an encrypted .kdbx file. To "self-host" this for a team, you place the database on an internal corporate file share or Nextcloud instance.
• Drawback: It is tedious for team environments because it lacks dynamic, granular user-level sharing or real-time permission revocation.

Key Operational Advice for Maximum Security

Choosing the software is only 20% of the battle. If you self-host a company password vault, your internal infrastructure becomes the primary target. To maximize security:

• Enforce Hardware 2FA: Restrict access to the self-hosted instance by mandating FIDO2/WebAuthn hardware keys (like YubiKeys) for all employee logins.
• Network Segmentation: Never expose your password manager instance directly to the public internet. Place it behind an internal company VPN (e.g., WireGuard/Tailscale) or a zero-trust network access gateway.
• Automate Encrypted Backups: A password manager server crash without backups can instantly halt your business. Ensure the underlying database is backed up hourly, encrypted at rest, and stored in a separate, isolated location.

To help narrow down the deployment architecture, could you share how many employees will need access, what Identity Provider (like Okta, Azure AD, or Google) your company currently uses, and whether your environment is fully on-premises or cloud-hosted?

For a company, my default recommendation is official self-hosted Bitwarden, not Vaultwarden.

Bitwarden is the strongest overall choice if your priorities are maximum security, enterprise manageability, support, and minimizing vendor/client compatibility risk. Bitwarden supports fully self-hosted and even offline/air-gapped deployments, and its Enterprise offering includes self-hosting.

My ranking

1. Bitwarden Enterprise — best overall for a company

• Official server software from the company behind the clients.
• End-to-end/zero-knowledge encryption.
• SSO, directory integration, organizational policies, auditing and enterprise controls.
• Can run entirely on-premises, behind your firewall, or in an air-gapped environment.
• Vendor support and security/compliance documentation.
• The downside is considerably more infrastructure and administration than lightweight alternatives.

bitwarden.com 2. Passbolt — arguably the most interesting choice for a high-security technical team

• Open source and specifically designed around team credential sharing.
• Uses client-side OpenPGP encryption; private keys aren't sent to the server in plaintext.
• Granular per-user/per-secret permissions.
• Can operate completely behind your firewall or in an air-gapped environment without requiring a third-party service.
• Particularly compelling if you're managing infrastructure, DevOps, SOC, or other highly sensitive shared credentials.
• Community Edition is free and supports unlimited users; paid editions add enterprise capabilities such as LDAP provisioning.

passbolt.com 3. Vaultwarden — excellent technically, but I wouldn't choose it for a security-critical corporate deployment

• Extremely lightweight Rust implementation of the Bitwarden server API.
• Works with the official Bitwarden clients.
• Much easier to operate than the official Bitwarden stack.
• But it is a third-party reimplementation, rather than the official Bitwarden server. That's an important distinction when you're protecting company-wide credentials and need formal vendor support/compliance assurances.

What I'd deploy

For a serious company, I'd use:

Bitwarden Enterprise → dedicated hardened Linux VM → internal/restricted network → TLS → SSO + MFA/passkeys → separate backup infrastructure → centralized monitoring/SIEM.

I'd also make the password manager itself a high-value security boundary rather than just another Docker application. In particular:

• Require phishing-resistant MFA (FIDO2/WebAuthn) for administrators.
• Don't expose the management interface directly to the Internet.
• Put the service behind a hardened reverse proxy/WAF where appropriate.
• Use separate administrative accounts and least privilege.
• Encrypt backups and store them separately from the password-manager host.
• Regularly test restoration from backups.
• Monitor administrator activity and authentication events.
• Patch the host, container images and dependencies promptly.
• Consider a dedicated management network.
• Have a documented recovery procedure for losing the password-manager server and losing an administrator's credentials.
• For your most sensitive infrastructure credentials, consider whether they belong in a dedicated secrets-management system rather than an employee password vault.

One particularly important point: self-hosting does not automatically make a password manager more secure. Bitwarden explicitly notes that once you self-host, your organization assumes responsibility for infrastructure, security, updates, backups and availability.

The short answer

If you told me "We have 100–1,000 employees, our own infrastructure, a competent IT/security team, and we want the safest mainstream solution", I'd pick official self-hosted Bitwarden Enterprise.

If you told me "We're a security/DevOps-heavy organization and cryptographic control and minimizing server trust are more important than having the broadest enterprise ecosystem", I'd seriously evaluate Passbolt alongside Bitwarden.

I would not make Vaultwarden my first choice for a company-wide, high-assurance deployment despite its excellent technical reputation.

When it comes to running a self-hosted password manager on your company's own servers for maximum security, control, and transparency, Bitwarden is the undisputed gold standard for business and enterprise environments.

The primary, most robust options vary based on whether you need official enterprise governance, lightweight efficiency, or an offline-first file database:

• Top Recommendation: Bitwarden Official Self-Hosted – Best for official enterprise support, compliance, and user management.
• Alternative (Lightweight): Vaultwarden (formerly Bitwarden_RS) – Best for resource efficiency and small teams/homelabs.
• Alternative (Offline/File-based): KeePass / KeePassXC – Best for air-gapped or strictly offline corporate setups.

1. Bitwarden (Official Self-Hosted)

For a corporate environment, running the official Bitwarden self-hosted server via Docker is the safest bet.

• Security Architecture: Uses end-to-end zero-knowledge encryption (AES-256 bit encryption, salted hashing, and PBKDF2/Argon2 key derivation). Data is encrypted on the client device before it ever touches your server.
• Enterprise Features: Active Directory/LDAP integration, SAML/SSO authentication, enterprise policies, event logs, and granular user/group access controls.
• The Catch: While the base server is free, advanced organization/enterprise features require a paid Bitwarden enterprise license per user, even when self-hosting.

2. Vaultwarden

Vaultwarden is an unofficial, highly optimized alternative server written in Rust that is compatible with official Bitwarden client apps (browser extensions, mobile apps, desktop clients).

• Security Architecture: Implements the same client-side zero-knowledge encryption model as Bitwarden because it speaks the same API.
• Performance: It is exceptionally lightweight, running comfortably in a tiny Docker container using minimal RAM and CPU, unlike the heavier official Bitwarden stack.
• The Catch: Because it’s community-driven (not officially supported by Bitwarden Inc.), it may lag slightly behind bleeding-edge enterprise features, and you won’t have an official corporate support SLA. However, it is widely trusted in the self-hosted community.

3. KeePass / KeePassXC

If your company requires an entirely offline or air-gapped approach where data doesn't rely on a centralized web API, KeePass is a classic choice.

• Security Architecture: Your passwords are kept in a single encrypted .kdbx database file that you store locally or sync across an internal corporate share.
• Control: Absolute data ownership with zero dependency on network connectivity or web servers.
• The Catch: Team collaboration and real-time multi-user syncing are clunky compared to Bitwarden. If two people edit the database simultaneously, merge conflicts happen.

Which should you choose?

• Go with Bitwarden Official if you are an organization that needs formal compliance, SSO/LDAP integration, and official vendor support.
• Go with Vaultwarden if you want the full Bitwarden ecosystem experience with low resource overhead on your servers.
• Go with KeePassXC if your team is small, tech-savvy, and requires a strictly offline, file-based vault.

To help narrow down the best setup for your team, let me know:

• How many employees/users need access to the vault?
• Do you require SSO/SAML or Active Directory integration?
• Will your servers be exposed to the internet (with a reverse proxy), or do you need a strictly local/VPN-only network?

If this is for a company, my top choice in 2026 is the official self-hosted Bitwarden server. I would choose it over Vaultwarden when your priority is maximum security and operational assurance rather than minimizing server resources.

My ranking

🥇 1. Official Bitwarden — my recommendation

Bitwarden has the strongest combination of security architecture, mature clients, corporate features, auditing, and vendor support.

Its vault data is encrypted on the client before being sent to the server, using end-to-end/zero-knowledge encryption. Bitwarden also publishes its source code and reports annual source-code audits and penetration tests covering its clients and core application.

The official self-hosted distribution is maintained by Bitwarden itself, with signed container images and Kubernetes deployment support.

For a company, that's important: you're not depending on an unofficial implementation of someone else's protocol.

🥈 2. Passbolt — potentially better for privileged/team credentials

Passbolt is particularly interesting if your primary requirement is securely sharing administrator credentials among employees.

Its architecture gives users their own cryptographic key pairs, with secrets encrypted on the client. The server administrator cannot decrypt the passwords. It also supports granular sharing/access controls and extensive auditing.

Passbolt has also published multiple recent independent security assessments, including a 2025 Quarkslab assessment and a 2026 Cure53 assessment.

I'd seriously consider Passbolt if this is primarily an IT/security team's password vault.

🥉 3. Vaultwarden — great technology, wrong default for a company

Vaultwarden is a lightweight, Rust-based, Bitwarden-compatible server. It's extremely attractive for small deployments.

But there's an important distinction:

Vaultwarden is not the official Bitwarden server.

For a business handling production credentials, I'd rather have the software vendor maintaining both the clients and server, with official support and a documented enterprise/security program. That's why I'd pick official Bitwarden even if Vaultwarden is cheaper and considerably lighter.

---

What I'd deploy for "maximum security"

The password manager itself is only half the equation. I'd build the deployment roughly like this:

Internet → hardened reverse proxy/WAF → password manager → isolated database

And additionally:

• Put the server in a dedicated VLAN/VM, not alongside ordinary business applications.
• Require phishing-resistant MFA/passkeys or hardware security keys for administrators.
• Don't expose the administrative interface unnecessarily.
• Use a short-lived, tightly controlled admin VPN path where practical.
• Enable TLS everywhere.
• Keep the OS, containers, database, and password manager continuously patched.
• Encrypt backups and keep offline/immutable backups.
• Test restoration regularly.
• Separate password-manager administrators from infrastructure/database administrators.
• Give employees only the vaults they actually need.
• Use separate emergency/break-glass accounts.
• Log administrative activity to an independent SIEM.
• Protect the server's backup keys separately from the server itself.
• Don't put the password-manager database and its backup keys in the same security boundary.

And critically: self-hosting doesn't automatically make you more secure. It transfers responsibility for patching, network security, backups, key management and disaster recovery from the vendor to your company.

Bottom line

If you told me:

"We have 50–500 employees, this will hold production/cloud/admin credentials, and security matters more than saving a few dollars."

I'd deploy official self-hosted Bitwarden.

If you told me:

"We're an IT/security team and the main problem is tightly controlled sharing of privileged credentials."

I'd put Passbolt very high on the shortlist.

I would not make Vaultwarden my first choice for a security-critical corporate deployment despite its excellent reputation in the self-hosting community.

For an organization running on its own infrastructure and prioritizing maximum security, transparency, and control, the clear industry consensus points to a few top-tier solutions.

The "best" option depends on your company size, compliance needs, and whether you want a polished user experience or strict GPG-backed access control.

• Bitwarden Official Enterprise (Self-Hosted)
  • The Security Edge: Fully open-source codebase, regularly audited by independent third parties, and built on zero-knowledge, end-to-end AES-256 bit encryption. It supports native Single Sign-On (SSO) integration (SAML/OIDC) and SCIM directory synchronization with providers like Okta or Azure AD.
  • Best For: Mid-to-large enterprises that need official compliance certifications (SOC 2, HIPAA, GDPR) and corporate accountability directly from the vendor while keeping data on-premises. You can review their deployment architecture on the Bitwarden On-Premises Solution page.
• Passbolt (Community or Pro Edition)
  • The Security Edge: Open-source and specifically engineered for IT teams and web developers. Instead of relying solely on a master password entered into a web form, Passbolt uses an OpenPGP-based authentication and encryption model where user keys are deeply tied to user control. It offers granular, real-time sharing permissions down to individual credentials or folders.
  • Best For: Tech-heavy teams, agencies, and sysadmins who need strict access logs, granular sharing controls, and GPG-level verification. Explore their collaborative feature breakdown on Passbolt.
• Vaultwarden
  • The Security Edge: A hyper-lightweight, unofficial alternative server implementation of the Bitwarden API written in Rust. It consumes a fraction of the RAM compared to the official Bitwarden stack yet allows your team to use the official, heavily polished Bitwarden client apps and browser extensions.
  • Best For: Small-to-medium teams or resource-conscious setups that want the incredible UX of Bitwarden without the heavy enterprise resource requirements. Note: It lacks native enterprise SSO/SCIM on its free backend, so it suits smaller teams relying on individual multi-factor authentication (MFA).
• KeePass / KeePassXC
  • The Security Edge: Zero server architecture. There is no backend container to compromise because passwords live in a local, heavily encrypted database file (.kdbx ). Teams synchronize the file across internal servers using WebDAV, a private Git server, or Nextcloud.
  • Best For: Small, highly technical groups or offline purists who do not mind manual file locking/syncing in exchange for zero remote-attack surface.

To help narrow down the best fit for your infrastructure, let me know:

• How many employees/users need access to the vault?
• Do you require integration with an Identity Provider (like Azure AD/Entra ID, Okta, or Google Workspace) for SSO?
• Are you looking for a lightweight Docker setup or an enterprise-supported appliance?

For a company-owned server where maximum security is the priority, I would narrow the field to three serious options:

My recommendation for a company: Passbolt (with caveats)

For a company whose main goal is maximum security of shared credentials, I would lean toward Passbolt.

Why:

• It was designed specifically around team credential sharing, not just personal password storage.
• It uses an OpenPGP-based model where users have cryptographic keys and secrets are encrypted for authorized users. The server is not supposed to hold plaintext passwords.
• It supports granular permissions: you can share individual credentials or groups of credentials with specific users.
• It can be run entirely inside your own infrastructure, including behind your firewall.

The tradeoff: it is less universally polished than Bitwarden. User onboarding and key management require more discipline.

---

When I would choose Bitwarden instead

If your company has:

• hundreds or thousands of employees
• compliance requirements
• SSO/SAML requirements
• formal vendor support requirements
• security audits and procurement processes

then I would choose the official self-hosted Bitwarden server.

Advantages:

• Same ecosystem as Bitwarden's cloud product
• Mature browser, desktop, and mobile clients
• Strong enterprise controls
• Larger ecosystem and commercial support options

The downside is operational complexity and heavier infrastructure requirements compared with lighter alternatives.

---

Where Vaultwarden fits

Vaultwarden is excellent if you want:

• a small internal deployment
• Bitwarden-compatible apps
• low resource usage
• simple administration

It is widely used because it is lightweight and works with official Bitwarden clients.

However, for a company's crown-jewel secrets, I would hesitate unless your organization is comfortable depending on a community implementation rather than the official product.

---

A "maximum security" deployment would look like this

Regardless of product:

1. Run it on a dedicated hardened VM

   • Minimal OS install
   • No unnecessary services
   • Separate database host if practical

2. Require hardware MFA

   • Use YubiKey or equivalent FIDO2 keys for administrators.

3. Put it behind your identity provider

   • SSO where supported
   • Conditional access policies
   • Device compliance checks

4. Protect backups as aggressively as the live server

   • Encrypted backups
   • Offline copy
   • Regular restore tests

5. Segment access

   • Password manager admins should not automatically have production access
   • Separate break-glass accounts

6. Monitor it

   • Authentication logs
   • Failed login attempts
   • Admin changes
   • Credential export attempts

---

Bottom line

• Maximum security for a technical/security-focused company: Passbolt
• Maximum enterprise maturity: Bitwarden Self-Hosted
• Best small-team/self-hosting value: Vaultwarden

If this is for a production company environment, I would not optimize for "easiest to run"; I would optimize for cryptographic design, access control, auditability, and operational discipline.

For a company running on its own infrastructure, Bitwarden (official self-hosted) and Vaultwarden (the lightweight Rust-based community alternative) stand out as the gold standard.

Because they implement strict zero-knowledge end-to-end encryption (AES-256), the data is encrypted and decrypted locally on user devices before it ever touches your server. Your company’s server acts merely as a blind storage locker and sync relay.

The choice depends primarily on your company's scale and enterprise requirements:

• Bitwarden (Official Self-Hosted) : The definitive choice for mid-to-large enterprises. It supports robust enterprise tooling like Single Sign-On (SSO/SAML), directory sync (LDAP/Active Directory), SCIM provisioning, and professional vendor support SLAs. It runs as a multi-container Docker deployment.
• Vaultwarden (Unofficial/Community Server) : Written in Rust, this is the choice for smaller teams or tech-forward environments. It consumes a fraction of the RAM (~30--100 MB) and runs in a single Docker container, yet it is 100% compatible with official Bitwarden browser extensions, desktop apps, and mobile clients. It also unlocks advanced features (like file attachments and TOTP) for free that require paid enterprise upgrades on the official stack.

Alternatives for Specific Use Cases

• Passbolt : Best if your primary audience is an IT or DevOps team that needs granular, highly visual permission controls for sharing technical infrastructure credentials.
• KeePassXC : Best if you prefer an entirely offline, file-based database model with no server sync infrastructure required. However, team collaboration and multi-device mobile syncing are significantly clunkier.

To help narrow down the ideal architecture for your team, let me know:

• How many employees need access?
• Do you require Enterprise SSO (SAML/OIDC) or Active Directory/LDAP integration?

For a corporate environment running on your own infrastructure, Bitwarden Official Self-Hosted is the undisputed gold standard for maximum security, compliance, and team management. However, depending on your team's size and resource constraints, a couple of strong alternatives also deserve consideration.

The top options break down as follows:

• Bitwarden (Official Enterprise/Teams Self-Hosted) : This is the premier choice for organizations. It features an open-source architecture that allows your security team to fully audit the codebase and cryptographic implementation. The official enterprise container supports advanced corporate necessities like SAML 2.0/OIDC Single Sign-On (SSO), SCIM/directory synchronization, fine-grained access policies, and detailed event logs.
• Vaultwarden (Formerly Bitwarden_RS) : If you are a small-to-medium team or startup looking for a lighter footprint, Vaultwarden is a community-made, alternative server implementation of the Bitwarden API written in Rust. It uses under 50MB of RAM and works natively with all official Bitwarden browser extensions, desktop, and mobile apps. Note: Skip this if you require corporate compliance certifications, directory syncing, or enterprise SSO out of the box.
• Passbolt : Designed specifically for IT and dev teams who need granular, role-based password sharing. It is open-source, highly security-conscious (using OpenPGP for encryption), and built for collaborative management. The primary trade-off is that it does not feature an offline mode and its ecosystem of client apps isn't quite as ubiquitous as Bitwarden's.

Why Bitwarden Wins on Security

• Zero-Knowledge Encryption: Data is encrypted and decrypted on the client side using AES-256 and PBKDF2/Argon2 hashing before it ever hits your company's server. Your server only stores ciphertext; even a complete compromise of the hosting server exposes no raw passwords.
• Ecosystem and Adoption: Maximum security is useless if employees try to bypass it. Because Bitwarden uses polished extensions for every major browser and native mobile apps, user friction is remarkably low compared to niche enterprise tools.

To help narrow down the implementation path, tell me:

• How many employees or seats need access?
• Do you require integration with an SSO provider (like Azure AD/Okta) or directory sync?

For a company, my top choice for maximum security is official self-hosted Bitwarden Enterprise rather than Vaultwarden.

My ranking

Why I'd choose Bitwarden

The important distinction is official Bitwarden vs. Vaultwarden. Vaultwarden is an excellent lightweight, community-developed implementation of the Bitwarden server API, but it isn't the official server and doesn't carry the same vendor support, enterprise governance, or compliance story.

For a company, official Bitwarden gives you:

• Zero-knowledge encryption — vault encryption/decryption occurs on the client, rather than your server seeing plaintext passwords.
• Self-hosting — you control where the encrypted vault data and infrastructure live.
• SSO with providers such as Microsoft Entra ID, Okta, Google Workspace and AD FS.
• SCIM/directory provisioning, useful for automatically disabling departing employees.
• Granular groups/collections and permissions for least-privilege credential sharing.
• Audit/event logging and SIEM integrations.
• Third-party security audits, SOC 2 Type 2, and an active security program.
• Official support, which becomes particularly important when the system contains your company's production credentials.

The bigger security issue: self-hosting isn't automatically safer

This is the part I'd emphasize to your security team.

Self-hosting moves responsibility from the vendor to you. You now have to secure the OS, containers, reverse proxy, TLS, backups, database, authentication, monitoring, patching, administrator accounts, and disaster recovery. Bitwarden itself notes that self-hosting provides more control but also substantially more operational security responsibility.

I'd therefore deploy it roughly like this:

Internet
   │
   ▼
WAF / reverse proxy
   │
   ▼
Bitwarden server
   │
   ├── Database
   │
   └── Encrypted backups
          │
          └── Offline / isolated backup

And I'd make these controls mandatory:

1. Put the admin interface behind your corporate identity provider + MFA.
2. Require phishing-resistant MFA (FIDO2/WebAuthn security keys where possible).
3. Don't expose the database directly to the Internet.
4. Run the password manager on a dedicated, hardened VM, not your general-purpose server.
5. Patch promptly and monitor Bitwarden/security advisories.
6. Back up the database and configuration, but protect backups as highly sensitive data.
7. Keep at least one offline/isolated backup so ransomware can't destroy your recovery path.
8. Separate administrators from normal users.
9. Use collections/groups based on least privilege—developers shouldn't automatically have access to finance, HR, production, etc.
10. Log administrative and authentication activity into your SIEM.
11. Have a documented emergency/recovery procedure before putting production credentials inside it.
12. Use passkeys/security keys wherever practical, especially for privileged accounts.

What about Passbolt?

I'd seriously consider Passbolt if your organization particularly likes its OpenPGP-based sharing model and team-oriented access controls. It's designed around collaborative credential management rather than being primarily a personal vault that gained organizational functionality.

But Bitwarden wins for me on overall enterprise ecosystem, client support, integrations, administration, and maturity.

And Vaultwarden?

It's arguably the best technical choice for a small organization that doesn't need enterprise governance. It's dramatically lighter than the official Bitwarden server and works with Bitwarden's client ecosystem.

I wouldn't make it the default for a serious company handling highly privileged production credentials, though. The fact that it's unofficial/community-maintained is the deciding factor—not its encryption capabilities.

Bottom line:
If this is a real company's central password infrastructure and your priority is maximum security rather than minimum cost, I'd deploy official Bitwarden Enterprise self-hosted, integrate it with your existing IdP/SIEM, require phishing-resistant MFA, isolate the server, and build a serious backup/recovery strategy around it.

If you tell me roughly how many employees you have, whether you're on Microsoft Entra/Okta/Google Workspace, and whether the server must be completely air-gapped/internal-only, I can recommend a hardened architecture and deployment topology.