TestBox: Funding, Investors & Team (Oct 2026)
TestBox makes it madly simple for an undertaking to track down the best programming for their requirements. TestBox is a sandbox where clients look at changed programming choices next to each other as though they were at that point executed in their own current circumstance.
TestBox has raised $36.2M across 4 funding rounds on record, the most recent a Series A of $12.0M announced in Mar 2026.
That round is above the $3.5M median round size for Software companies tracked on FundedIQ over the last two years.
TestBox Company Profile and Key Stats
Latest funding round on record: Mar 2026.
TestBox Funding Rounds
TestBox raised $2.7M in an undisclosed round announced in May 2021.
1.1 years later, a Seed of $10.0M was announced in Jun 2022.
3.3 years later, an undisclosed round of $11.4M was announced in Oct 2025.
5 months later, a Series A of $12.0M was announced in Mar 2026.
TestBox Founders and Leadership Team
Contact details for the TestBox team: 1 of 1 has an email address on file.
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TestBox's latest round of $12.0M is above the median round in Software. Medians cover the last 24 months of disclosed rounds.
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TestBox Funding FAQs
What does TestBox do?
TestBox makes it madly simple for an undertaking to track down the best programming for their requirements. TestBox is a sandbox where clients look at changed programming choices next to each other as though they were at that point executed in their own current circumstance.
How much funding has TestBox raised?
TestBox has raised $36.2M across 4 rounds on record. The most recent is a Series A of $12.0M announced in Mar 2026.
When did TestBox last raise funding?
TestBox's most recent funding round on record is a Series A of $12.0M, announced in Mar 2026.
Who is the CEO of TestBox?
Sam Senior is listed as CEO at TestBox.
Where is TestBox headquartered?
TestBox is based in Boulder, Colorado, United States.
How many employees does TestBox have?
TestBox is in the 11-50 employee band.
How does TestBox's funding compare to other Software startups?
TestBox's latest round of $12.0M is above the $3.5M median round size for Software companies on FundedIQ across 961 tracked companies over the last two years.
About FundedIQ's TestBox Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for TestBox is left off this page rather than filled in.
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