United States · Series D startup
4 rounds we have observed, with the 24 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.
Valuation: $1.2B, Mar 2026
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Funding summaryUpdated 15 Nov 2026
$101Mraised across 4 rounds since 2015, from 5 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Bain Capital VenturesLead
500 Global
Insight Partners
Salesforce Ventures
Venrock
FirstMark
K5 Global
Meritech Capital Partners
Bosch VenturesReported by Crunchbase News and 1 other
Sierra VenturesLeadBain Capital Ventures
CincyTech
Grand Ventures
Wireframe Ventures
Refinery VenturesReported by FinSMEs
DifferentialFrom a historical funding record
Astronomer filed one raise, $1.9M in all. Filings say how much was sold and to how many investors; they never name the investors.
From the SEC filings it signed: 2 on the team.
On the board, as filediMichael Venerable
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Bain Capital VenturesLCincyTechSierra VenturesL500 GlobalInsight PartnersSalesforce VenturesVenrockFirstMarkK5 GlobalMeritech Capital PartnersMissing a round, or an investor who was in one? Tell us.
These 3 firms list Astronomer 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.
Astronomer's investors include Bain Capital Ventures, CincyTech, Sierra Ventures, 500 Global and Insight Partners, and 19 more on record. Bain Capital Ventures led its latest round.
Astronomer has raised $101M across 4 rounds since 2015. One round did not disclose an amount, so the total is a floor.
Astronomer's most recent round was a Series D of $93M in May 2025, led by Bain Capital Ventures.
Its most recent round, $93M in May 2025, is also its largest on record.
Astronomer's first round on record, in Jun 2015, was backed by Drummond Road Capital, Morris Wheeler and Differential and 6 others.
Astronomer's latest named round is a Series D, in May 2025.
Astronomer is based in the United States.
Sierra Ventures led the Seed in 2019; Bain Capital Ventures led the Series D in 2025.
In the same sector, and raised in the last eighteen months.
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United States · 
