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Altaeros

Somerville, MA · Founded 2010 · Privately Held (backing)

Provider of autonomous aerostats and support services intended to connect rural areas with mobile broadband. Altaeros is based in Somerville, MA and was founded in 2010. It was valued at $102 million at its later-stage round in Nov 2021, the last priced event on record. It has raised $93.9 million across 2 recorded rounds; the latest was a $3.8 million seed round in Oct 2018.

PMV mark · valuation
$102.3M
Oct 2026
Priced at
its later-stage round
Nov 2021
Total raised
$93.9M
Last round
Seed Round
Oct 2018

Altaeros key facts

as of Oct 2026
  • Provider of autonomous aerostats and support services intended to connect rural areas with mobile broadband.
  • Altaeros is valued at approximately $102.3M as of Oct 2026, set at its later-stage round, Nov 2021; nothing has traded since, per PrivateMarketView’s mark.
  • It has raised $93.9M across 2 recorded rounds; the latest was Seed Round ($3.8M) in Oct 2018.
  • Notable investors include US National Science Foundation, MassChallenge, In-Q-Tel, SoftBank Investment Advisers, MassVentures — 19 tracked in total.
  • Altaeros has filed 2 Form Ds with the SEC since 2014, most recently Nov 2018 ($3.8M sold to 2 investors).
  • Status: Privately Held (backing).
PrivateMarketView mark
LOW confidence
$102.3M

Valued at $102.3M at its later-stage round, Nov 2021. Nothing has traded since.

set by its last priced roundas of Oct 2026question about this number?
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Altaeros funding rounds

2 rounds
Oct 2018Seed Round$3.8MSEC filing▮
Nov 2014Early Stage VC$7.2MSEC filing▮
Full funding history →

Altaeros valuation

Altaeros was valued at $102 million at its later-stage round in Nov 2021. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Altaeros raised?

Altaeros has raised $93.9 million in total; 2 of its rounds are on record. The largest on record was a $7.2 million early-stage round in Nov 2014; the most recent was a $3.8 million seed round in Oct 2018.

Altaeros has filed 2 Form Ds with the SEC since 2014, most recently in Nov 2018 ($3.8 million sold to 2 investors).

Altaeros investors

19 investors are on record for Altaeros, including US National Science Foundation, MassChallenge, In-Q-Tel and SoftBank Investment Advisers. The seed round in Oct 2018 drew 2 investors.

About Altaeros

Provider of autonomous aerostats and support services intended to connect rural areas with mobile broadband. The company's turbine is a high-altitude turbine made for mobility and rapid deployment at remote, military, and offshore sites, as well as help in the cost-effective deployment of ubiquitous telecom services and deployment of technology-enabled agricultural services, enabling rural and isolated communities to improve connectivity through their super towers and facilitate control through their aerostat system.

Sector
Information Technology
HQ
Somerville, MA, United States
Founded
2010
Employees
55
Ownership
Privately Held (backing)

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