# Exum Instruments funding: rounds and investors > Exum Instruments has raised $4.6M across 3 rounds since 2025. Investors include Advantage Capital, Cortado Ventures and MassChallenge. Source: https://millionrounds.com/company/exum-instruments (Millionrounds; every figure on the page links to its filing or article) United States · [Venture startup](https://millionrounds.com/companies) # Who invested in *Exum Instruments* 3 rounds we have observed, with the 3 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Software Raised 4 months ago Funding summary Updated 26 Oct 2026 **$4.6M** raised across 3 rounds since 2025, from 3 sources **$1.1M** Venture **$120K** Round **$3.4M** Venture - **Latest round:** Venture, $3.4M Jul 2026 - **Step-up i:** 28.3× - **Investors:** 3 See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2026 **$1.1M** Venture **$120K** Round **$3.4M** Venture - **First round:** Venture, $1.1M - **Biggest round:** $3.4M - **Usual gap between rounds:** 9 months ## The rounds - **Jul 2026** Venture **$3.4M** *2 returning* [Advantage Capital](https://millionrounds.com/fund/advantage-capital) [Cortado Ventures](https://millionrounds.com/fund/cortado-ventures) Source recorded SEC filing: $3.4M sold - **Dec 2025** Round **$120K** No investor was named in the report. Filed with the SEC (Form D); no report of this raise yet SEC filing: $120K sold, first sale Dec 2025 - **Apr 2025** Venture **$1.1M** *3 new* [MassChallenge](https://millionrounds.com/fund/masschallenge) [Advantage Capital](https://millionrounds.com/fund/advantage-capital) [Cortado Ventures](https://millionrounds.com/fund/cortado-ventures) Source recorded SEC filing: $1.1M sold, first sale Apr 2025 ## Founders and team From Exum Instruments's own website: 7 on the team. - **Jeffrey Williams** CEO/CTO - **Mike Minyard** CFO - **Ellen Williams** Senior VP of Business Development - **Chris Fabere** Director of Manufacturing - **Cole Naymark** Director of Engineering - **Jonathan Putman** Director of Applications - **Oleg Maltsev** Director of Software Engineering and Integration ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Venture** 2025 **Round** 2025 **Venture** 2026 [Advantage Capital](https://millionrounds.com/fund/advantage-capital) [Cortado Ventures](https://millionrounds.com/fund/cortado-ventures) [MassChallenge](https://millionrounds.com/fund/masschallenge) ## Everyone who backed them [Advantage Capital](https://millionrounds.com/fund/advantage-capital) Corporate VC **2** rounds [Cortado Ventures](https://millionrounds.com/fund/cortado-ventures) VC firm **2** rounds [MassChallenge](https://millionrounds.com/fund/masschallenge) Accelerator **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=exum-instruments). ## Also claim to have backed them These 4 firms list Exum Instruments as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Amerocap](https://millionrounds.com/fund/amerocap) VC firm Per its own site [Caruso Ventures](https://millionrounds.com/fund/caruso-ventures) VC firm Per its own site [EIC Rose Rock](https://millionrounds.com/fund/eic-rose-rock) VC firm Per its own site [FortySix Venture Capital](https://millionrounds.com/fund/46-venture-capital) VC firm Per its own site ## Quick answers about Exum Instruments ### Who invested in Exum Instruments? Exum Instruments's investors include Advantage Capital, Cortado Ventures and MassChallenge. ### How much has Exum Instruments raised? Exum Instruments has raised $4.6M across 3 rounds since 2025. ### When did Exum Instruments last raise? Exum Instruments's most recent round was a Venture of $3.4M in Jul 2026. ### What was Exum Instruments's biggest round? Its most recent round, $3.4M in Jul 2026, is also its largest on record. ### Who backed Exum Instruments first? Exum Instruments's first round on record, in Apr 2025, was backed by MassChallenge, Advantage Capital and Cortado Ventures. ### What stage is Exum Instruments at? Exum Instruments's latest named round is a Venture, in Jul 2026. ### Where is Exum Instruments based? Exum Instruments is based in the United States. ## Companies like Exum Instruments In the same sector, and raised in the last eighteen months. [**TruAgents** $3.4M · Oct 2026](https://millionrounds.com/company/truagents)[**Fireworks AI** $1.7B · Oct 2026](https://millionrounds.com/company/fireworks-ai)[**VECKTA** $11M · Oct 2026](https://millionrounds.com/company/veckta)[**Punch** $11M · Oct 2026](https://millionrounds.com/company/punch)[**Othello** $8.0M · Oct 2026](https://millionrounds.com/company/othello)[**Applied Intuition** $640M · Oct 2026](https://millionrounds.com/company/applied-intuition) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. 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