GrowthBook

GrowthBook

Open-source A/B testing platform

Overview

GrowthBook provides an open-source A/B testing platform that helps product, engineering, and marketing teams run experiments to compare different versions of a webpage or app. The platform works by integrating with a company’s data sources or data warehouse, collecting results from experiments, and offering metrics, statistical analysis, and collaboration tools so teams can decide which variant performs better. The core software is free (open-source), while premium features, enterprise support, and professional services generate revenue. This combination allows organizations to deploy in-house testing without building a custom solution from scratch, while still scaling with advanced analytics and support. GrowthBook’s goal is to help teams make data-driven product decisions through continuous experimentation and optimization.

YC Company
Significant Headcount Growth

About GrowthBook

Simplify's Rating
Why GrowthBook is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Data & Analytics

Enterprise Software

Company Size

11-50

Company Stage

Seed

Total Funding

$130K

Headquarters

Palo Alto, California

Founded

2020

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Simplify's Take

What believers are saying

  • GrowthBook 5.0 reached GA on July 22, 2026, signaling active product momentum.
  • 2025 delivered 45 new features, including Vercel integration, MCP server, and managed warehouse.
  • Thousands of companies use GrowthBook, and enterprise self-hosting wins privacy-sensitive buyers like Upstart.

What critics are saying

  • LaunchDarkly and Statsig now bundle flags, experiments, and analytics, compressing GrowthBook's differentiation.
  • GrowthBook's July 2025 $22.6 million Series A is small versus incumbents' distribution and cash.
  • If enterprise self-hosted adoption stalls, open-source users stay free and never convert.

What makes GrowthBook unique

  • Open-source, warehouse-native platform keeps experimentation inside customers' existing data infrastructure.
  • GrowthBook 5.0 unified feature flags, product analytics, and experimentation by July 2026.
  • AI Visual Editor and agent support target fast, non-engineer experiment creation.

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Funding

Total Funding

$130k

Below

Industry Average

Funded Over

1 Rounds

Notable Investors:
Seed funding is usually the first official round after pre-seed, when a startup has a prototype or concept. It’s typically used to develop the product, test the market, and start building the team. Investors here are often angel investors or early-stage venture capitalists.
Seed Funding Comparison
Below Average

Industry standards

$3.3M
$130k
GrowthBook
$1.5M
Slack
$2M
Netflix
$2.3M
Instacart
$3M
Robinhood

Benefits

Unlimited Paid Time Off

Health Insurance

Dental Insurance

Vision Insurance

Mental Health Support

Parental Leave

401(k) Retirement Plan

401(k) Company Match

Home Office Stipend

Remote Work Options

Growth & Insights

Headcount

6 month growth

↑ 58%

1 year growth

↑ 58%

2 year growth

↑ 70%

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