Portsmouth

A working list of the 7 tech companies and startups headquartered in Portsmouth. Refreshed continuously from public sources, ATS feeds, and funding databases.


Companies
7
With funding
7
Tracked capital
$213M

SECTION I · PORTSMOUTH ROSTER

Companies headquartered in Portsmouth

Page 1 of 1

Displaying 7 companies

River Platform Company logo
In-person events & social platform turning audiences into communities. We make it easy to orchestrate hundreds of events with vetted, volunteer hosts. Powering IRL community for The All-In Podcast, This Week in Startups, My First Million, Superteam x Solana, Bryan Johnson's Don't Die, and many more.
PortsmouthNH2 - 102023$1,710,000
VATN logo
Vatn builds affordable modular autonomous underwater vehicles. Stay tuned for the launch of our first AUV. We are backed by Decisive Point.
PortsmouthRI10 - 502023$73,000,000
Glow Labs logo
glowlabs.eth is a loyalty rewards software on the blockchain.
PortsmouthNH5 - 202021$4,150,000
Pirouette Medical logo
Pirouette Medical develops a portable, intuitive, and easy-to-use auto-injector. The company is initially developing an epinephrine auto-injector (EAI), which is used for the emergency treatment of severe allergic reactions. Pirouette is committed to delivering a device that addresses all the major pain points through our human-centered design focus. Pirouette’s technology is diversely applicable to many drugs that require fixed dose, single-use intramuscular or subcutaneous injections.
PortsmouthNH5 - 202017$23,400,000
BioGreen360 logo
BioGreen360 is a provider of technology services for sustainable food waste solutions. It is self-contained, continual feed, aerobic, organic waste digester. This revolutionary system biologically converts organic waste into a dry, sterile, high-nutrient product suitable as a fertilizer additive, reducing the negative environmental impact and costs associated with landfill dumping. BioGreen360 was founded in 2010 and is headquartered in Portsmouth, New Hampshire.
PortsmouthNH5 - 202010$4,284,980
Senet logo
Senet, Inc. provides Software-as-a-Service monitoring services. The Company offers wireless network, data aggregation platform, and network resource tools. Senet serves customers in the State of New Hampshire.
PortsmouthNH10 - 1002009$50,021,913
Position Imaging logo
Position Imaging offers package management and asset tracking technology that provides accurate real-time product, personnel, and equipment location awareness without the use of RFIDs, allowing organizations to improve key processes used in the manufacturing, shipping, and selling of goods. Position... Read more
PortsmouthNH20 - 502006$56,054,632

SECTION II · THE BRIEF

The rest of the brief

Brief #97495Updated 24 SEP 2026PORTSMOUTHTECHHIRING DESK
Employbl Company Profile

Inside Portsmouth

What we publish for members: hiring momentum, comp bands, and investor activity behind the 7 companies above.

Companies
7
With funding
7
Tracked capital
$213M
Section II · Full ProfileFree with an account
  • 01Which Portsmouth companies are hiring most aggressivelyLocked
  • 02Neighborhood-by-neighborhood density mapLocked
  • 03Open roles across the city (live ATS feed)Locked
  • 04Comp bands by stage and headcountLocked
  • 05Investor activity in the last 12 monthsLocked

Free account · no card · 2 minutes


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