United States · 
Who invested in Assembly?
Assembly's investors include Y Combinator, Collaborative Fund, Alumni Ventures, Gaingels and BoxGroup, and 13 more on record.
201320152017201920212023
?Seed$2.9MVenture$1.8MSeed$100MVenture$10MSeries A$500KPre-seed
United States · Pre-seed startup
Who invested in Assembly
Funding summaryUpdated 26 Oct 2026
$115Mraised across 6 rounds since 2013, from 6 sources
$2.9MVenture$1.8MSeed$100MVenture$10MSeries A$500KPre-seed
- Latest round
- Pre-seed, $500KApr 2024
- Biggest round
- $100MVenture · Dec 2021
- Investors
- 18
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Seed Jan 2013
- Biggest round
- $100M Venture · Dec 2021
- Usual gap between rounds
- 16 months the median of 5
The rounds
- Apr 2024
- Dec 2022Series A$10M6 new
Source recorded
- Dec 2021
- Oct 2021
- Nov 2014Venture$2.9M3 new1 returning
From a historical funding record
- Jan 2013
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.
Seed2013Venture2014Seed2021Venture2021Series A2022Pre-seed2024
Y Combinator
Collaborative Fund
Alumni Ventures
Gaingels
BoxGroup
GSR
Union Square Ventures
Upfront Ventures
Floodgate
LD Capital
Y CombinatorCollaborative FundAlumni VenturesGaingelsBoxGroupGSRUnion Square VenturesUpfront VenturesFloodgateLD CapitalEveryone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Assembly as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Assembly
How much has Assembly raised?
Assembly has raised $115M across 6 rounds since 2013. One round did not disclose an amount, so the total is a floor.
When did Assembly last raise?
Assembly's most recent round was a Pre-seed of $500K in Apr 2024.
What was Assembly's biggest round?
Assembly's largest round on record is $100M (Venture), in Dec 2021.
Who backed Assembly first?
Assembly's first round on record, in Jan 2013, was backed by Floodgate, Collaborative Fund and Kevin Donahue.
What stage is Assembly at?
Assembly's latest named round is a Pre-seed, in Apr 2024.
Where is Assembly based?
Assembly is based in the United States.
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