Statsig
Statsig sells product experimentation and analytics software used by over 3,000 companies including OpenAI and Microsoft. The 51-person startup has raised $153M, most recently a Series C in May 2025.
The growth story
Statsig grew from 13 to 51 employees between 2021 and 2026, raising $153M along the way, most recently a Series C in May 2025.
About
Statsig provides tools for running A/B tests, managing feature rollouts, and analyzing product usage data. Engineering and product teams use it to test changes before full deployment and track impact.
The company has grown rapidly since its 2021 founding by ex-Facebook engineers, with notable adoption by major tech firms. Its Series C suggests continued scaling despite already serving thousands of customers.
Founders and leadership
Engineering dominates the organization with 12 employees in that function. The leadership team comes primarily from Facebook's engineering ranks.
The Statsig org chart
Larry Xu (Head of Engineering) leads 10 mapped leaders with 7 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 24 (-68% YoY), Entrepreneurship 4 (-33% YoY), Sales 3 (-89% YoY), Accounting 3 (+50% YoY).
Talent flow
Facebook is the top talent source (12 hires), followed by Amplitude and Microsoft. Alumni frequently move to OpenAI (142 transitions) far more than other destinations.
Most common previous employers of Statsig staff: Facebook (12), Amplitude (6), Microsoft (5), Meta (4), Amazon (3), Command AI (fka CommandBar) (2). Former Statsig employees most often moved to OpenAI (142), Meta (3), Atlassian (2), Microsoft (2), Datadog (2), GrowthBook (2).
Alumni worth knowing
The Statsig mafia
Four alumni-founded companies exist, including Oper8r (7 staff) and Superlinear Academy (4 staff). All were started by single founders from Statsig.
4Ryan Musser, was Head of Solutions Engineering until 2025Yuzheng Sun, was Evangelist | Principal Data Scientist until 2025Esther Sedgwick, was Head of Marketing until 2023Julian Vivaan, was Head of Analytics until 2024Web traffic
Traffic mix: 66% direct, 15% search, 5% social, 1% paid.
What this company is made of
Most common skills at Statsig: Public Speaking (39), Research Skills (34), Teamwork (29), Social Media (29), React.js (19), SQL (16), Java (14), Python (Programming Language) (13).
Where the team actually sits
Statsig people are concentrated in Washington, United States (17), United States (9), California, United States (6), New York, United States (2).
Search footprint
Statsig attracts about 139,000 organic search visits a month, traffic worth roughly $233K a month if bought through ads. It gained 12,050 ranking keywords and lost 12,047 in the last period.
What employees say
- Compensation
- 4.70 / 5
- Career opportunities
- 5.00 / 5
- Senior management
- 5.00 / 5
- Work-life balance
- 4.70 / 5
Frequently asked
Statsig has 51 employees as of September 2026.
Statsig has raised $153M in total, most recently a Series C round in May 2025.
Larry Xu (Head of Engineering) sits at the top of Statsig's reporting structure, with 7 direct reports.
The most common previous employers of current Statsig staff are Facebook (12 people), Amplitude (6 people), Microsoft (5 people).
Former Statsig employees most often move to OpenAI (142), Meta (3), Atlassian (2).
At least 4 companies have a founder who previously worked at Statsig, including oper8r, Superlinear Academy, The Carry.
Statsig attracts about 139,000 organic search visits a month, worth roughly $233K a month in equivalent ad spend.
The most common skills among Statsig staff are Public Speaking, Research Skills, Teamwork, Social Media, React.js.
Statsig staff are concentrated in Washington, United States (17), United States (9), California, United States (6).
Statsig has about 24 people in Engineering, down 68% over the past year, as of September 2026.
Statsig has about 4 people in Entrepreneurship, down 33% over the past year, as of September 2026.
Computed from 42 current and 201 former Statsig profiles, as of September 2026. Source: Crustdata.
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