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AtomicJar

Other B2B Software · New York City, United States · Founded 2021

Making integration testing easier for developers across the software development lifecycle MoreLess

AtomicJar is a startup focused on enhancing the productivity of software developers by providing innovative tools for integration testing. Integration testing is a phase in software development where different modules or services are combined and tested as a group. AtomicJar's primary product, Testcontainers, is an open-source project that simplifies this process by allowing developers to run tests with real dependencies in a local environment. This helps developers identify and fix issues earlier, making the development cycle shorter and the final product more reliable.

The company operates in the software development market, specifically targeting developers and development teams who need efficient and effective testing solutions. Their clients range from small startups to large enterprises that rely on robust software applications.

AtomicJar's business model revolves around offering both free and premium services. The open-source Testcontainers project is available for free, fostering a large community of users and contributors. For more advanced needs, AtomicJar offers Testcontainers Cloud, a premium service that allows developers to offload their tests to the cloud. This service is currently in a limited private beta but promises to make local development, testing, and continuous integration (CI) processes more seamless and efficient.

The company generates revenue through subscriptions to its Testcontainers Cloud service. By providing a cloud-based solution, AtomicJar helps companies save on infrastructure costs and improve their development workflows, which in turn makes their products more reliable and their developers more productive.

In summary, AtomicJar is revolutionizing the way developers conduct integration testing, making it faster, easier, and more reliable. Their innovative tools and cloud services are designed to boost developer productivity and improve software quality.

Keywords: Integration Testing, Developer Productivity, Testcontainers, Cloud Services, Software Development, Open Source, Continuous Integration, Development Tools, Testing Solutions, Enterprise Tech.

Company overview

AtomicJar company information

The essential company record, classifications and operating signals in one place.

Status
Acquired
Founded
2021
Headquarters
New York City, United States
Employees
3
Open positions
None listed
Dealroom signal
58.0
client focusb2bbusiness modelSaaSsectorOpen SourcesectorDeveloper ToolsindustryEnterprise Software

Valuation & funding

AtomicJar funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITIONExit Dec 2023 $0 Docker
SERIES AEquity / VC Jan 2023 $25M $100M Chalfen Ventures · Insight Partners · Irregular Expressions · Peter McKay
SEEDEquity / VC Jun 2021 $4M $16M Ian Livingstone · Jevgeni Kabanov · Zane Lackey · Leonid Igolnik
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Financials

Revenue and workforce over time

Available revenue and workforce history. Fields without reported data are omitted.

YearRevenueGrowthEmployees
2026 $2.5M 0% 3
2025 $2.5M 0% 27
2024 $2.5M 0% 27
2023 $2.5M +76.1% 27
2022 $1.4M 23
2021 6
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Growth signals

AtomicJar website traffic

Latest recorded traffic for AtomicJar is 2.6K monthly website visits, up 863% over the last three months. AtomicJar's team declined 88.9% over the past year.

Latest monthly visits2.6K 3-month web change+863% 1-year team growth-88.9%
Monthly website visits47 observations · Jan 2022–Jul 2026
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Comparisons

AtomicJar compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Talent graph

AtomicJar's talent

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Team profiled 7 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

20 investors on AtomicJar's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 14 investors entered at this stage
Boldstart Ventures
Ian Livingstone
Jevgeni Kabanov
Zane Lackey
Leonid Igolnik
Natalie Diggins
Chalfen Ventures
Guy Podjarny
Tribe Capital
Abby Kearns
Andrus Adamchik
Peter McKay
Dimitri Sirota
Simon Maple
Series A 3 investors entered at this stage
Insight Partners
Irregular Expressions
Walter Scott
Other known 3 additional known investors
Docker
IA Seed Ventures
Mike Chalfen

Global footprint

Where AtomicJar has talent and traffic

Workforce by country
1 countries with
team presence
🇬🇧 United Kingdom100%
1 country shown

In the news

Latest news about AtomicJar

Recent press, funding announcements, and product moves mentioning AtomicJar — open to read from the original sources.

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Market sentiment

What the market is saying about AtomicJar

An AI-synthesized read of the highest-engagement posts about AtomicJar on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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