WorkOS
WorkOS provides APIs that help SaaS companies add enterprise features like single sign-on and user management. The company has raised $195M and employs 139 people.
The growth story
WorkOS grew from 20 to 139 employees between 2021 and 2026, raising $195M along the way, most recently a Series C in March 2026.
About
WorkOS sells developer tools that let SaaS companies quickly add enterprise-grade functionality to their products. Its APIs handle features like user authentication, directory synchronization and audit logs, which are often required to sell to large organizations.
The company has raised $195M in funding, including a Series C in March 2026. Its engineering team makes up over half of its 139 employees, reflecting its focus on developer tools.
Founders and leadership
Engineering is the largest function at WorkOS, accounting for 73 of its 139 employees. The company's leadership includes founders with backgrounds in developer-focused startups.
The WorkOS org chart
Michael Grinich (Founder) leads 26 mapped leaders with 2 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 79 (+39% YoY), Arts and Design 12 (+50% YoY), Information Technology 7 (+250% YoY), Marketing 4 (+100% YoY), Business Development 4 (+100% YoY), Sales 4 (0% YoY).
Talent flow
WorkOS hires heavily from other developer tool companies, with Auth0 and Shopify being the top sources. Its alumni often move to other API and infrastructure startups, with Resend and Anthropic being common destinations.
Most common previous employers of WorkOS staff: Auth0 (7), Shopify (7), IBM (5), Flatfile (5), GitHub (5), Facebook (4). Former WorkOS employees most often moved to Resend (4), Anthropic (3), Paper (3), Radial (2), Okta (2), ElevenLabs (2).
Alumni worth knowing
The WorkOS mafia
WorkOS alumni have founded at least 7 companies, including Resend (77 employees) and Paper (24 employees). Several other startups like Datacakes and Graphed also trace their origins to WorkOS.
9Zeno Rocha, was VP of Developer Experience until 2022Bu Kinoshita, was Software Engineer until 2022Stephen Haney, was Head of Product Engineering until 2024Nick Kephart, was VP of Marketing until 2021
Max Chehab, was Engineering until 2021
William Huba, was Engineering until 2026
John Palmer, was Product Designer until 2021Hiring now
Web traffic
Traffic mix: 37% direct, 14% search, 2% social, 1% paid.
What this company is made of
Most common skills at WorkOS: JavaScript (69), Cascading Style Sheets (CSS) (46), React.js (42), Git (42), Python (Programming Language) (41), Java (39), Node.js (38), Microsoft Office (37).
Where the team actually sits
WorkOS people are concentrated in California, United States (21), New York, United States (15), New York City Metropolitan Area (8), San Francisco Bay Area (8).
Search footprint
WorkOS attracts about 9,174 organic search visits a month, traffic worth roughly $124K a month if bought through ads. It gained 2,773 ranking keywords and lost 2,095 in the last period.
What employees say
- Compensation
- 4.00 / 5
- Career opportunities
- 3.80 / 5
- Senior management
- 3.90 / 5
- Work-life balance
- 4.10 / 5
Frequently asked
WorkOS has 139 employees as of September 2026.
WorkOS has raised $195M in total, most recently a Series C round in March 2026.
WorkOS was founded in 2019 by Michael Grinich.
Michael Grinich (Founder) sits at the top of WorkOS's reporting structure, with 2 direct reports.
The most common previous employers of current WorkOS staff are Auth0 (7 people), Shopify (7 people), IBM (5 people).
Former WorkOS employees most often move to Resend (4), Anthropic (3), Paper (3).
At least 7 companies have a founder who previously worked at WorkOS, including Resend, Paper, Datacakes.
WorkOS attracts about 9,174 organic search visits a month, worth roughly $124K a month in equivalent ad spend.
The most common skills among WorkOS staff are JavaScript, Cascading Style Sheets (CSS), React.js, Git, Python (Programming Language).
WorkOS staff are concentrated in California, United States (21), New York, United States (15), New York City Metropolitan Area (8).
WorkOS has about 79 people in Engineering, up 39% over the past year, as of September 2026.
WorkOS has about 12 people in Arts and Design, up 50% over the past year, as of September 2026.
Computed from 130 current and 94 former WorkOS profiles, as of September 2026. Source: Crustdata.
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