United States · Seed startup
Funding summaryUpdated 26 Oct 2026
$271Mraised across 8 rounds since 2008, from 8 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Source recorded
Union Square VenturesLead
Multicoin CapitalLead
Khosla Ventures
Google Ventures
FirstMark
Munich Re VenturesReported by VentureBeatSEC filing: $71K sold, first sale May 2019
From a historical funding recordSEC filing: $16M sold, first sale Sept 2014
SV Angel
Slow VenturesFirstMark
Digital Garage (TSE: 4819)From a historical funding record
No investor was named in the report.
Reported by masshightech.comSEC filing: $10M sold, first sale Apr 2011
No investor was named in the report.
From a historical funding recordSEC filing: $443K sold, first sale Jul 2009
Reported by techcrunch.com
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
SV AngelKhosla VenturesFirstMarkUnion Square VenturesLSlow VenturesMarc BenioffDigital Garage (TSE: 4819)Multicoin CapitalL
Y Combinator
Andreessen HorowitzFrom historical deal records. Wrong? Tell us.
Missing a round, or an investor who was in one? Tell us.
Helium's investors include SV Angel, Khosla Ventures, FirstMark, Union Square Ventures and Slow Ventures, and 16 more on record.
Helium has raised $271M across 8 rounds since 2008.
Helium's most recent round was a Seed of $5.4M in Aug 2025.
Helium's largest round on record is $200M (Series D), in Feb 2022.
Helium's first round on record, in Oct 2008, was backed by Signature Capital, Signature Capital Securities and Northport Private Equity.
Helium's latest named round is a Seed, in Aug 2025.
Helium is based in the United States.
Union Square Ventures led the Series C in 2019.
In the same sector, and raised in the last eighteen months.
Search every investor by what they have actually funded, then narrow to your stage and market. Free.
United States · 
