tl;dr: frontrun flagged liquid compute (then called pluto) 194 days before the company announced a $15m seed round co-led by chemistry and firstmark, with Y Combinator, TrueBridge Capital Partners, UFO Holdings and K8 Capital. frontrun flagged testerarmy 188 days before the startup announced a $1.2M pre-seed backed by Y Combinator, Script Capital, AIP Seed, and Eight Capital. TypeSafe AI emerged from stealth with a $40M seed led by DCVC, flagged by frontrun 71 days before the announcement. frontrun flagged Artificial Intelligence Underwriting Company (AIUC) 159 days before it announced a $40M Series A led by Ribbit Capital, with First Harmonic. frontrun flagged Mithrl 104 days before it announced a $20M Series A led by Obvious Ventures, with Headline and AGI House.
Liquid Compute: $15M seed, flagged 194 days early
@frontrunvc · Sep 15, 2026
FUNDRAISE 💰: @frontrunvc flagged @liquidcompute on March 5th, back when they were Pluto.
194 days later: $15M seed co-led by @chemistry and @FirstMarkCap, with @ycombinator, @TrueBridgeCP and @ufo_holdings. 🫡
Liquid Compute raised a $15M seed co-led by Chemistry and FirstMark, with Y Combinator, TrueBridge Capital Partners, UFO Holdings and K8 Capital.
the company is building an exchange for buying, selling and hedging AI compute, the way power markets trade electricity. its applications to the CFTC are pending.
flagged on frontrun: march 5 2026, back when the company was called Pluto. announced: september 15 2026. 194 days.
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TesterArmy: $1.2M pre-seed, flagged 188 days early
@frontrunvc · Sep 15, 2026
FUNDRAISE 💰: @frontrunvc flagged @TesterArmy on March 11th.
188 days later: $1.2M pre-seed from @ycombinator, @scriptcapital, AIP Seed, and Eight Capital 🫡
TesterArmy raised a $1.2M pre-seed from Y Combinator, Script Capital, AIP Seed, Eight Capital and Guillermo Rauch.
the company builds a QA agent that tests your app like a real person would.
flagged on frontrun: march 11 2026. announced: september 15 2026. 188 days.
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TypeSafe AI: $40M seed, flagged 71 days early
@frontrunvc · Sep 15, 2026
FUNDRAISE 💰: @typesafeai just came out of stealth with a $40M seed led by @DCVC.
On @frontrunvc, the story started 71 days ago.
jul 6: @typesafeai flagged. in stealth.
jul 21: @frontrunvc posted in EARLY at 40 followers.
sep 9: 9 tracked accounts following.
sep 15: out of stealth. $40M seed led by @DCVC. 🫡
TypeSafe AI came out of stealth with a $40M seed led by DCVC.
the company is a frontier AI lab from Diogo Almeida, co-creator of RLHF and ChatGPT at OpenAI. its first model, Jev, is built to live inside software: fast, cheap, composable intelligence.
flagged on frontrun: july 6 2026. announced: september 15 2026. 71 days.
we posted TypeSafe AI in EARLY on july 21, when the account had 40 followers. 9 tracked accounts followed before the announcement.
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Artificial Intelligence Underwriting Company: $40M Series A, flagged 159 days early
Artificial Intelligence Underwriting Company (AIUC) raised a $40M Series A led by Ribbit Capital, with First Harmonic.
the company is underwriting the risk of letting AI agents act on their own.
flagged on frontrun: april 9 2026. announced: september 15 2026. 159 days.
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Mithrl: $20M Series A, flagged 104 days early
Mithrl raised a $20M Series A led by Obvious Ventures, with Headline and AGI House.
the company builds the scientific decision engine for R&D: raw data in, defensible decisions out, faster.
flagged on frontrun: june 3 2026. announced: september 15 2026. 104 days.
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see the list before the round
these already happened. the useful list is the one where the round or the launch has not happened yet.
frontrun watches the follow graphs of 2,000+ tracked venture investors on X and flags the companies they converge on, with a date, the morning it happens.
read next: the fundraise receipt ledger · startups flagged before they raised
open source deal flow
companies and founders surfaced on frontrun. curated, every week.
