AI & TechnologyOctober 20, 2026·7 min read·

Astromech Valuation 2026: $3.8B After a $20M Round

Ben Lamm and George Church's Colossal Biosciences spinout nearly doubled its valuation in five months on a $20 million raise. Here is the funding history, who invested, what the model actually does and what it has not yet proven.

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Quick Answer

$3.8 billion is Astromech's valuation after it raised $20 million in a round led by Bob Nelsen, announced August 20, 2026, per SiliconANGLE. That is up from $2 billion in March 2026. The Colossal Biosciences spinout has raised $60 million in total, has announced no customers and does not disclose revenue.

Astromech is valued at $3.8 billion after raising $20 million in a round announced August 20, 2026, up from $2 billion in March 2026, and the Colossal Biosciences spinout has raised $60 million in total with no disclosed revenue.

That ratio is the story: a $20 million check priced the company at 190 times the amount raised. Astromech was co-founded by Colossal CEO Ben Lamm and Harvard geneticist George Church to build AI that forecasts how living systems change over time. Investors are paying for the team, the Colossal data pipeline and the idea, because there are no customers yet.

Astromech valuation 2026: $3.8B after a $20M round

Astromech Valuation: $3.8 Billion in August 2026

"An artificial intelligence startup called Astromech that's developing models that can predict biological change has raised $20 million in funding, lifting its valuation to $3.8 billion," SiliconANGLE reported on August 20, 2026. The round "was led by biotechnology investor Bob Nelsen and saw the participation of Peak 6, NeoGenesis Capital, Builders VC and CAZ Investments, bringing the company's total amount raised to date to $60 million." Astromech was valued at $2 billion in March 2026, per Tech Funding News on July 21, 2026.

$3.8B
Astromech valuation, Aug 2026
$20M
led by Bob Nelsen
Astromech round, Aug 20, 2026
$60M
Astromech total raised, Aug 2026
$2B
Astromech valuation, Mar 2026
Not disclosed
Revenue

Astromech Funding History

DateEventAmountValuationInvestors / source
2025Spun out of Colossal BiosciencesNot disclosed consistently—Co-founders Ben Lamm, George Church
Mar 2026Funding roundNot confirmed$2BTech Funding News
Aug 20, 2026Funding round$20M$3.8BBob Nelsen (lead), Peak 6, NeoGenesis Capital, Builders VC, CAZ Investments (SiliconANGLE)
TotalAll rounds$60M—SiliconANGLE, Tech Funding News

Sources disagree on Astromech's earlier round sizes: a September 2025 company press release announced $30 million, and an April 2026 headline reported $40.5 million at $2 billion, which together with the $20 million would exceed the $60 million total that SiliconANGLE and Tech Funding News report. We list only the figures the August 2026 coverage states.

What Does Astromech Do?

Astromech builds what its founders call a "predictive model of biology." Per SiliconANGLE, the model "crunches a combination of genomic, evolutionary, biological and functional data to try to anticipate how living systems will change over time." Lamm framed it this way: "Think of it like the weather, a complex system that humanity can predict due to specific technology and datasets. We are building the same thing for biology with evolutionary data."

Its first public demonstration mapped 46 longevity-associated genes across species that solved the same problem differently, including cancer-resistant Asian elephants, bowhead whales that live two centuries and Brandt's bats that live past forty, The Next Web reported on August 21, 2026. In retrospective validation, the pipeline "recovered trait-associated genes already established in published research and flagged further candidates."

Does Astromech Have Revenue?

Revenue: not disclosed. "No partner pilot has been named, and no customer has been announced in health, biosecurity, agriculture or conservation," The Next Web wrote on August 21, 2026. It added that "no forecast has been tested prospectively," and that a claimed 100-times speed figure is an internal benchmark Astromech has not published for outside review. At $3.8 billion with no product revenue, Astromech's price rests on the founders' record and on access to Colossal's genomic work.

How Does Astromech Compare to Colossal Biosciences?

Astromech's parent is far larger. Colossal Biosciences, which is working to de-extinct species such as the woolly mammoth and the dodo, carried a $10.2 billion valuation after its $200 million Series C in January 2025, and it was reportedly in talks to raise at a valuation of $20 billion to $30 billion in July 2026, according to Axios, as cited by Tech Funding News. See the full Colossal Biosciences company profile for its funding history.

Will Astromech IPO?

No IPO has been announced as of October 20, 2026, and Astromech has not filed with the SEC to go public. With $60 million raised and no commercial product, an IPO would be unusual in the near term; the next marker is a priced round from new institutional investors or a first named customer.

Where I Could Be Wrong

Small rounds at high prices can overstate value: a $20 million check sets the price for a sliver of the company, and terms such as liquidation preferences are not public. On the other side, Lamm has turned Colossal into a company reportedly worth tens of billions without a commercial de-extinction product, so markets have priced this team's story highly before. The test for Astromech is a prospective prediction that turns out right, or a paying customer.

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Frequently Asked Questions

What is Astromech's valuation?

Astromech's valuation is $3.8 billion after a $20 million funding round announced August 20, 2026, led by biotech investor Bob Nelsen, according to SiliconANGLE. The company was valued at $2 billion in March 2026, per Tech Funding News, so the valuation nearly doubled in about five months.

How much has Astromech raised?

Astromech has raised $60 million in total as of its August 20, 2026 round, according to SiliconANGLE and Tech Funding News. The latest round was $20 million. Earlier round sizes have been reported inconsistently, so we list only the total the outlets report.

Who invested in Astromech?

Astromech's August 2026 round was led by Bob Nelsen, co-founder of ARCH Venture Partners, with Peak 6, NeoGenesis Capital, Builders VC and CAZ Investments participating, per SiliconANGLE on August 20, 2026. The company was spun out of Colossal Biosciences.

Does Astromech have revenue?

Astromech does not disclose revenue, and as of August 21, 2026 The Next Web reported that no partner pilot or customer had been announced in health, biosecurity, agriculture or conservation. Its $3.8 billion valuation is a bet on the model, not on sales.

Is Astromech public? Can I buy Astromech stock?

No. As of October 20, 2026, Astromech is a private company with no announced IPO plans, so its shares are not publicly traded. Its parent, Colossal Biosciences, is also private; it was valued at $10.2 billion in January 2025 and reportedly in talks at $20 billion to $30 billion in July 2026, per Axios as cited by Tech Funding News.

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