Statsig

Market position

At the time of its May 2025 Series C, Statsig was reported as a Seattle-area unicorn valued at $1.1 billion, ranked #9 on the GeekWire 200 index of top privately held Pacific Northwest startups and named a finalist for the Next Tech Titan GeekWire Award. It competes in an experimentation and feature-management market undergoing consolidation, including Datadog's acquisition of Eppo; Datadog approached Statsig about an acquisition before agreeing to buy Eppo. Cited users include OpenAI, Microsoft, Notion, Brex, Ancestry, Lime, Bluesky, SoundCloud and Whatnot.

Statsig positions itself as a single integrated platform spanning experimentation, feature flags, product and web analytics, session replay and infra analytics, in contrast to what it characterizes as fragmented point solutions; a customer quoted on its site said it chose Statsig over Optimizely, LaunchDarkly, Split and Eppo for end-to-end integration covering the stats engine through data ingestion. Other stated differentiators include warehouse-native deployment, a large SDK surface, infrastructure operating at trillion-event-per-day scale, advanced statistical methods, and pricing including a large free tier. CEO Vijaye Raji has said that consolidation in the category, such as Datadog's acquisition of competitor Eppo, validates the platform strategy.

Technology

The platform is built on a stats engine supporting Bayesian and frequentist methods, variance-reduction and correction techniques (CUPED, winsorization, Bonferroni, Benjamini-Hochberg), sequential and switchback testing, non-inferiority tests, multi-armed bandits, stratified sampling, and interaction and heterogeneous effect detection. Delivery options include hosted infrastructure and warehouse-native execution inside the customer's data warehouse. More than 30 open-source SDKs cover client and server languages, and the infrastructure is reported to handle over a trillion events per day with 99.99% uptime and sub-millisecond post-initialization evaluation latency. Session replays are linked to feature flags, experiments and metrics, and a Chrome extension visual editor enables no-code experiment creation with autocaptured clicks, page views and conversions.

Go-to-market

Statsig combines product-led self-serve adoption through a free tier, free account creation and open-source SDKs with an enterprise sales motion ("Talk to Sales" and custom contracts). Supporting go-to-market assets include documentation, customer case studies, a blog and "Perspectives" content, Statsig University, a partner program, a sample size calculator and a Chrome extension visual editor aimed at marketers who lack developer resources.

Product, engineering, data science and DevOps teams, plus marketers using the no-code visual editor, at companies ranging from individual builders and startups to large enterprises. Statsig markets to gaming, B2B SaaS and e-commerce industries, and names customers including OpenAI, Microsoft, Notion, Brex, Ancestry, Lime, SoundCloud, Bluesky and Whatnot.

Geography

Statsig is headquartered in Bellevue, Washington, on the Interstate 90 corridor in the Seattle region. The company operates an in-office policy of five days a week, which requires employees to live in the region, and reported outgrowing its office and planning a move to a larger nearby space.

History

Founder Vijaye Raji spent roughly 20 years across Microsoft and Facebook, including work on Microsoft's Small Basic and Windows 8 developer tools before joining Facebook in 2011, where he spent about 10 years and led the company's Seattle office for five years. He left Facebook in 2021 to found Statsig. The company raised a $43 million Series B in 2022 led by Sequoia with participation from Madrona, when it had 31 employees. In May 2025 it announced a $100 million Series C at a $1.1 billion valuation led by ICONIQ Growth, bringing total funding to more than $153 million, with 140 employees and plans to reach 175-190 by early 2026. GeekWire subsequently reported that OpenAI acquired Statsig for $1.1 billion and named its CEO to a key role, and Statsig's website states the company is part of the Amplitude family.

Risks & controversies

The company declined to disclose financial details beyond its annual recurring revenue figure or to say whether it is profitable. Its requirement that employees work in the office five days a week narrows hiring to candidates based in the Seattle region. The experimentation and feature-flagging market is consolidating into broader platforms, with well-capitalized competitors including Optimizely, LaunchDarkly, Split and Datadog-owned Eppo.