
AtomicJar
AcquiredNewark, United States · Founded 2021 · $29.1M raised
- Headquarters
- Newark, New Jersey
- Employees
- 11–50
- Founded
- 2021
- Business Model
- B2B
- Website
- atomicjar.com
- Total Funding
- $29.1M
- Last Round
- $25.0M Series AJan 2023
- Rounds
- 2
- Acquired by
- DockerDec 2023
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
AtomicJar was the commercial company behind Testcontainers, the popular open-source integration testing library. Founded in 2021 by the original creators and maintainers of Testcontainers, AtomicJar built Testcontainers Cloud — a cloud-based test infrastructure service that allowed teams to run container-based integration tests without local Docker requirements. The company raised $25M in January 2023 before being acquired by Docker, Inc. in December 2023.
Summary
AtomicJar is a Developer Tools company based in Newark, United States, founded in 2021. It has raised $29.1M in total across 2 rounds, most recently a $25.0M Series A round in Jan 2023. Investors include Boldstart Ventures, Insight Partners and Tribe Capital.
Tech & App Stack
6 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding & Exit History
Dec 2023
Sign up to see all 3 events
Funding: Seed through Series A. Amounts, valuations, and investors where available.
Investors
Similar Companies

Stripe provides payments, billing, money-management, fraud-prevention, and identity tools that he...

Leading interactive entertainment company and developer of Fortnite, Unreal Engine, and the Epic ...

Mistral co-creates tailored AI systems for enterprises and governments, combining frontier models...
Chinese AI company developing GLM large language models and multimodal agent APIs for enterprises...
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/atomicjar"><img src="https://indexed.vc/api/badge/company/atomicjar" alt="AtomicJar on Indexed.vc" width="260" height="76" /></a>

