# Stack Overflow

> Developer Q&A community and Teams knowledge platform.

## Why it is interesting

Default stack for programming answers — a16z in Series E before Prosus $1.8B buyout.

## Profile

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

## Key facts

- Series E (Jul 2020): $85M; a16z, Spark, USV, Index among investors (Stack Overflow blog)
- Exit (Jun 2021): acquired by Prosus for $1.8B (Stack Overflow blog)

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz
- https://venturecapitaltracker.com/fund/spark-capital
- https://venturecapitaltracker.com/fund/union-square-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/stack-overflow