Which single sign-on (SSO) provider is the easiest to set up for a startup with under 100 employees?

If you mean employee SSO for a startup with <100 people, my single pick for easiest overall setup is JumpCloud.

• JumpCloud — best fit for a small startup that wants SSO, MFA, user directory, and potentially device management in one place. It’s specifically positioned toward SMBs, and current comparisons highlight its simpler all-in-one approach.
• Microsoft Entra ID — arguably easier if you're already standardized on Microsoft 365. You may already have the required identity capabilities through your Microsoft licensing, so there's less to introduce.
• Google Workspace — similarly attractive if your company already lives in Google Workspace; Business editions include SSO using Google as the identity provider.
• Okta — probably the best pure-play identity platform, but I'd choose it when you expect more sophisticated identity/security requirements rather than simply minimizing setup. Its current Starter plan is $6/user/month and includes SSO, MFA, and Universal Directory.

My rule of thumb

Already paying for Microsoft 365 → Entra ID. Already paying for Google Workspace → Google. Mixed SaaS stack and want the simplest dedicated IAM → JumpCloud. Expect enterprise customers/compliance requirements → Okta.

So, absent any other information, JumpCloud is my recommendation for a sub-100-person startup.

If you tell me whether you're Google Workspace or Microsoft 365, plus roughly 20 / 50 / 100 employees, I can give you the cheapest/easiest choice and estimated annual cost.

For a startup with under 100 employees, the absolute easiest single sign-on (SSO) setup depends on what your team is already using for email and basic infrastructure.

• If you are already on Google Workspace: Google Workspace built-in SSO (via SAML/OIDC) is the easiest and fastest to deploy. You don't have to onboard a new platform or sync a secondary directory—your employees just use their existing Google credentials to log into third-party apps. However, it lacks advanced automated user provisioning (SCIM) and granular reporting on lower tiers.
• If you want an all-in-one directory, device management, and true SSO: JumpCloud is widely considered the easiest dedicated identity provider for small startups. Unlike enterprise-heavy alternatives, it combines SSO, multi-factor authentication (MFA), and basic device/laptop management (MDM) into a single, straightforward cloud console that takes hours—not weeks—to configure.
• If you need heavy enterprise compliance (SOC2/ISO) immediately: Okta is the gold standard and connects to virtually anything out-of-the-box, but it is noticeably more expensive and heavy on configuration overhead for a tiny team compared to JumpCloud or Google.

If you tell me what tools/software your team uses most (like Google Workspace, Slack, GitHub) and whether you need device management (MDM) for company laptops, I can recommend the exact provider to fit your workflow.

For a startup with under 100 employees, the "easiest" single sign-on (SSO) provider depends on whether you mean securing internal tools/employee access (Workforce SSO) or adding login for customers to a product you are building (Customer CIAM).

Scenario A: For Employee & Internal App Access (Workforce SSO)

If you just want your team to securely log into Slack, Google Workspace, GitHub, and AWS using one set of credentials:

• Google Workspace / Cloud Identity
  • Why it's the easiest: If your startup already uses Gmail and Google Workspace for email, you already have an IdP (Identity Provider) . You can enable Google SSO for third-party apps with minimal configuration. There's no new platform for your team to learn, and it's free/included with your existing workspace tier up to a point.
  • Best for: Startups already living in the Google ecosystem who want zero extra administrative overhead.
• JumpCloud
  • Why it's the easiest: It is an open directory platform built specifically for small-to-medium-sized startups. It handles SSO, but crucially also lets you manage laptop devices (Mac/Windows/Linux) and user access from a single, straightforward dashboard without enterprise-level complexity.
  • Best for: Startups that want unified device management and user identity without Okta's heavy configuration overhead.

Scenario B: For B2B SaaS Customers Logging Into Your Product

If you are building an app and need to offer "Log in with Enterprise SSO (SAML/OIDC)" so your business customers can access your software:

• WorkOS
  • Why it's the easiest: WorkOS is purpose-built for early-stage B2B SaaS startups trying to unblock enterprise deals. It provides a clean, modern API that abstracts away the horrors of SAML and directory sync (SCIM). You can integrate enterprise SSO in hours rather than weeks, and they offer a generous free tier for early-stage companies.
  • Best for: Founders who need to check the "Enterprise SSO" box to close B2B sales contracts quickly.
• Clerk
  • Why it's the easiest: If you are building a modern web app (especially on React, Next.js, or modern full-stack frameworks), Clerk offers drop-in UI components and handles multi-factor, social logins, and enterprise SSO out of the box with pristine documentation.
  • Best for: Developer-first teams prioritizing speed-to-launch over complex compliance frameworks.

To help narrow down the exact right choice, tell me:

• Are you setting this up for internal employees to log into tools, or for customers logging into your software?
• What tech stack or primary apps do you need to integrate first?

If you mean SSO for your SaaS product—so your customers can log in through Okta, Microsoft Entra ID, Google Workspace, etc.—my pick for a startup under 100 employees is WorkOS.

Why WorkOS

• Very little SSO plumbing: it supports SAML and OIDC and provides SDKs for common stacks including Node, Python, Ruby, Go, Java, and .NET.
• Customer self-service: its Admin Portal gives your customers' IT admins a guided setup flow, so your developers don't have to walk every customer through configuring their IdP.
• Built specifically for B2B SaaS: organization/tenant modeling, SSO, SCIM provisioning, and enterprise onboarding are first-class features.
• You don't have to replace your existing auth system: WorkOS can sit alongside your current authentication stack rather than requiring a wholesale migration.
• Startup-friendly: WorkOS explicitly targets startups and says its SSO integration can be done in minutes, with a relatively straightforward connections-based pricing model.

How I'd rank the easy options

The important distinction is that Okta/Entra as workforce identity providers are primarily things your company uses internally. WorkOS/Auth0/Clerk are more relevant if you're trying to let your customers use their company's SSO to access your product.

Bottom line: If you're a <100-person B2B startup and already have authentication, I'd choose WorkOS for the least engineering/support friction. If you're building authentication from scratch—particularly a JavaScript/TypeScript app—I'd also seriously consider Clerk.

If you tell me your tech stack (e.g. Next.js, Django, Rails) and whether SSO is for your employees or your customers, I can give you a more definitive pick.

The absolute easiest Single Sign-On (SSO) provider to set up for a startup under 100 employees is the core cloud identity provider you are already using for corporate email: Google Workspace (if you use Gmail) or Microsoft Entra ID (formerly Azure AD, if you use Office 365).

Because your employees are already logged into these accounts to read their emails, setting up SSO requires zero additional user provisioning, zero new master passwords, and zero extra costs for basic apps. You simply use their native OpenID Connect (OIDC) or SAML settings to connect apps like Slack, Zoom, or Jira.

If you need a dedicated, standalone identity management tool beyond your email suite, here is how the top alternatives break down for a small startup team.

Top Standalone SSO Providers Ranked by Startup Ease-of-Use

Clarifying Note: Internal Team vs. Customer App Authentication

Before selecting a tool, ensure you are optimizing for the correct setup direction:

• Workforce SSO (Internal Team) : If you want your 100 employees to safely log into their work tools (Slack, HubSpot, Notion), stick with Google Workspace, Microsoft Entra ID, or JumpCloud.
• Customer-Facing SSO (Your Product) : If your startup is building a B2B SaaS app and your customers are asking for SSO to log in, you should use developer-focused APIs like WorkOS or PropelAuth instead, which take only a few lines of code to deploy.

To help narrow down the fastest path, let me know:

• What email productivity suite (Google Workspace or Microsoft 365) do you currently use?
• Are you setting this up for your internal team or building it into a product you sell?
• What are the top 2 or 3 software applications you need to connect first?

If you mean SSO for your startup’s employees across SaaS apps, my pick for a sub-100-person startup is JumpCloud.

My ranking

Why I'd choose JumpCloud

For a startup with, say, 20–80 employees, JumpCloud is unusually straightforward because it combines SSO, MFA, user directory, and device identity/management rather than requiring you to assemble several products. Its current SSO pricing is $11/user/month annually ($13 monthly), and it offers a 30-day trial.

Google Workspace is actually the easiest choice if you're already a Google Workspace shop and only need employees to sign into compatible SaaS applications. In that case, I wouldn't introduce another identity platform unless you need more sophisticated device/lifecycle management.

Microsoft Entra ID is similarly compelling if you're already paying for Microsoft 365—especially Business Premium—because the identity functionality can already be part of what you're buying.

One important distinction

If you're asking “What should I integrate into our SaaS product so our customers can offer SSO?”, my answer changes substantially: WorkOS is probably the easiest startup-oriented option. It provides prebuilt support for 20+ identity providers, an Admin Portal for customer self-service, and SAML/OIDC support. Its current SSO pricing starts at $125/month per connection, while its basic AuthKit is free up to 1 million MAUs.

Bottom line:

• Employee SSO: JumpCloud, unless you're already all-in on Google or Microsoft.
• SSO for your SaaS customers: WorkOS.
• Internal apps / zero-trust access: Cloudflare Access is worth considering; its Free plan supports teams under 50 users, with paid plans starting at $7/user/month annually.

If you tell me whether you're Google Workspace, Microsoft 365, or neither, I can narrow this to the single best choice for your startup.

For a startup with under 100 employees, the single easiest SSO provider to set up depends on whether you mean workforce internal access (logging employees into Slack, GitHub, Notion, etc.) or customer-facing product login (letting corporate clients log into your B2B SaaS product).

Scenario A: For Internal Workforce SSO (Managing your team's apps)

If you just want to secure company apps and offboard employees with one click, the easiest choice is whichever ecosystem you already live in:

• Google Workspace (Google Cloud Identity):
  • Why it’s easiest: If your startup already uses Gmail and Google Workspace, you already have an IdP (Identity Provider) . Turning on Google SSO for third-party apps requires zero new infrastructure, no separate vendor billing, and minimal configuration inside the Google Admin Console.
  • Best for: Teams already standardized on Google tools who just need basic, friction-free SAML/OIDC and MFA.
• JumpCloud:
  • Why it’s easiest: If you aren’t 100% on Google—or if you manage a mix of Mac/Windows laptops and need a lightweight directory alongside SSO—JumpCloud is built specifically for SMBs. It takes hours, not weeks, to implement, combining user management, device trust, and app integration into a single intuitive dashboard.
  • Best for: Growing remote teams that need a mix of device management and straightforward SSO without enterprise bloat.

Avoid Okta or Microsoft Entra ID at this stage unless required by compliance; their initial configuration overhead, pricing tiers, and administrative complexity are massive overkill for a sub-100 person startup.

Scenario B: For B2B SaaS Product SSO (Selling to enterprise clients)

If you are a startup building a software product and your enterprise clients are demanding "Log in with SAML/Okta" to buy your product:

• WorkOS:
  • Why it’s easiest: WorkOS was literally built to solve the "SSO bottleneck" for early-stage B2B SaaS companies. Instead of wrestling with raw SAML and OIDC protocols or building custom middleware, you integrate their clean APIs in an afternoon. It includes a pre-built, white-labeled Admin Portal that lets your customers' IT admins configure their own connections autonomously.
  • Best for: Engineering teams that want to ship enterprise readiness in days without becoming identity experts.
• Auth0 (by Okta):
  • Why it’s easiest: If you need a comprehensive, developer-first platform that handles both regular user sign-ups and enterprise federated login (via their Organizations feature), Auth0 has robust SDKs and extensive documentation to get going quickly.

To help narrow down the exact right fit, let me know:

• Are you looking for internal workforce security (managing employee access to tools) or customer-facing SSO for a product you are building?
• What core tech stack or workspace provider (Google Workspace, Microsoft 365, custom stack) does your startup currently use?

For a startup with under 100 employees, I’d pick JumpCloud as the easiest standalone SSO/identity provider—especially if you’re not already deeply committed to Microsoft 365.

My ranking

Why JumpCloud: it is designed around smaller organizations and combines SSO, MFA, directory management, and device management rather than making you assemble several products. Current comparisons also put it among the strongest startup options, with a free tier for very small teams and straightforward paid tiers as you grow.

One important exception: if you're already paying for Microsoft 365, I'd choose Microsoft Entra ID instead. If you're already standardized on Google Workspace, Google can be even simpler because identity and SSO are already integrated into the admin console. Google supports SAML/OIDC SSO and preconfigured SAML applications directly in Workspace.

I wouldn't choose WorkOS or Auth0 for employee SSO. They're particularly attractive when you're adding SSO to your own SaaS product for customers, rather than managing your employees' access.

Bottom line:

• Starting from scratch → JumpCloud
• Google shop → Google Workspace
• Microsoft shop → Entra ID
• Expecting complex enterprise IAM soon → Okta

If you tell me whether your startup is Google Workspace or Microsoft 365, plus roughly 20 / 50 / 100 employees, I can give you the cheapest/easiest choice and estimated monthly cost.

For a startup with under 100 employees, the "easiest" SSO provider depends on whether you mean workforce SSO (managing how your team logs into Slack, Google, GitHub, etc.) or customer/product SSO (adding enterprise login to a B2B SaaS product you are building).

The top recommendations for each scenario feature minimal setup overhead:

1. For Internal Workforce SSO (Team Management)

If you just want your team to use "Sign in with Google" or a unified login for internal tools, choose based on your current tech stack:

• Google Workspace Identity (or Microsoft Entra ID) : If your startup already runs on Google Workspace (Gmail, Docs) or Microsoft 365, you already have an SSO provider . Turning on Google/Microsoft SAML/OIDC for third-party apps (like Notion, Slack, or Figma) takes minutes, requires zero new billing, and has no extra platform to learn.
• JumpCloud : If you want a dedicated cloud directory that handles SSO plus basic device/laptop management (Mac/Windows) for a small team, JumpCloud is exceptionally streamlined and offers a generous free tier for small teams.
• Rippling IT : If you use Rippling for your startup's payroll and HR, enabling their IT/Identity product lets you spin up app access and auto-onboard/offboard employees directly from HR data with virtually no separate configuration.

2. For Customer-Facing B2B SaaS SSO (Selling to Enterprises)

If you are building a product and need to let your enterprise customers log in via their own corporate IdPs (Okta, Entra ID, etc.):

• WorkOS : Purpose-built for early-to-growth-stage B2B SaaS startups. It abstracts away the absolute headache of SAML/OIDC configurations, provides pre-built UI components via AuthKit, and includes an embeddable Admin Portal so your customers can configure their own SSO without your engineering help.
• SSOJet / Kinde : Great alternatives if you want straightforward developer APIs and predictable flat-rate or usage-based pricing models without enterprise-tier setup friction.

To help narrow this down, tell me:

• Are you setting up SSO for internal team management or adding it into a product you are building for customers?
• What email/productivity suite (Google Workspace or Microsoft 365) does your team currently use?

For a startup with under 100 employees, the easiest SSO provider is usually:

🥇 Best default choice: Google Workspace (if you already use it)

If your company email is already on Google Workspace, it is typically the lowest-effort path:

• Users already have identities managed there
• MFA/security policies are built in
• Many SaaS apps support Google SSO
• No separate identity platform to deploy

For a small team using Slack, GitHub, Notion, Jira, Zoom, etc., this is often enough.

Best for: startups that want “good enough SSO” without hiring an IT admin.

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🥈 Easiest dedicated SSO/IAM platform: JumpCloud

JumpCloud is probably the easiest standalone identity provider for a small company because it combines:

• SSO
• MFA
• user directory
• onboarding/offboarding workflows
• optional device management

It is especially attractive if you have a mixed environment (Mac + Windows + Linux, Google + Microsoft + AWS + many SaaS tools).

Best for: startups that want a real IT foundation but don't want enterprise complexity.

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🥉 Best if you are already Microsoft-based: Microsoft Entra ID

If you already pay for Microsoft 365, Entra ID is often the obvious choice:

• integrated with Microsoft accounts
• strong security controls
• good app integration

It is less appealing if your company is mostly Google Workspace + non-Microsoft SaaS.

Best for: Microsoft 365 shops.

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Where Okta fits

Okta is excellent and widely used, but for a sub-100-person startup it can be more platform than you need:

• More configuration
• More enterprise-oriented features
• Often higher cost/administrative overhead

It becomes attractive when you need:

• many SaaS integrations
• compliance requirements (SOC 2, ISO, etc.)
• complex access policies
• a dedicated IT/security function

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My practical recommendation by startup stage

For most startups under 100 employees, I would start with Google Workspace SSO or JumpCloud rather than Okta.

If you tell me your current stack (Google Workspace vs Microsoft 365, Slack, GitHub, AWS, laptops managed or not, SOC 2 plans), I can narrow it down to one choice.