# Optimizely

> Optimizely made A/B testing accessible to marketers before Episerver acquired it and later merged into the Optimizely brand.

## Why it is interesting

YC W10’s experimentation platform became the category leader — Benchmark and Bain backed growth before Index led the $58M Series C.

## Profile

- **Stage:** acquired
- **Status:** acquired
- **Industries:** generalist-tech
- **Coverage:** full
- **Last updated:** 2026-07-24

## Key facts

- Series B (May 2014): $57M led by a16z; Benchmark, Bain participated (TechCrunch)
- Series C (Oct 2015): $58M led by Index Ventures (Index Ventures)
- Exit (2018): Acquired by Episerver

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz
- https://venturecapitaltracker.com/fund/benchmark
- https://venturecapitaltracker.com/fund/bain-capital-ventures
- https://venturecapitaltracker.com/fund/index-ventures

## Related articles

- https://venturecapitaltracker.com/2026-a16z-hot-portfolio-companies

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Source: https://venturecapitaltracker.com/startup/optimizely