T
ThayerMahan
Provider of marine robotic solutions for government and industry
About ThayerMahan
ThayerMahan is a pioneering company in the field of autonomous maritime surveillance, leveraging cutting-edge technology to collect acoustic and electronic data from the world's oceans. The company serves a diverse range of clients, including government agencies, environmental organizations, and private enterprises, who require advanced oceanic monitoring solutions. Operating in the maritime security and surveillance market, ThayerMahan designs, manufactures, and operates sophisticated systems that provide enhanced coverage and situational awareness at a fraction of the cost of traditional methods. The business model revolves around the sale and operation of these systems, generating revenue through both direct sales and service contracts. ThayerMahan's innovative approach is driven by advancements in robotic miniaturization, digital communications, and artificial intelligence, positioning it as a leader in the industry.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2016
- Headquarters
- Groton, United States
- Employees
- 127
- Open positions
- 5
- Dealroom signal
- 28.9/100
- Sector
- Defence, Acoustics, Core AI, Industrial Robotics, Defence Applications, Industrial Technology, Sea and Subsea Robots, Blue Economy, Dual-Use Tech, Bluetech and Ocean Observation, AI Applications, NIF defense security and resilience, NIF awareness and decision making, DT and LS
- Business model
- SaaS
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES COther financing | Jan 2024 | $20M | $150M | The Chertoff Group · Yellow Submarine · Hanwha Asset Management · AE Industrial Partners | ↗ |
| SERIES COther financing | Apr 2023 | $30M | $120M | AE Industrial Partners · I Squared Capital · Mercury Capital Advisors · Hegemon Capital | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for ThayerMahan is 5.3K monthly website visits, down 32.9% over the last three months. ThayerMahan's team declined 15.3% over the past year.
Open positions
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
| Company | Headquarters | Status | Employees | Total funding | Valuation |
|---|---|---|---|---|---|
VaarstAI-driven subsea robotics and 3D data solutions |
Bristol, United Kingdom | Acquired | 1 | $20M | $80M |
Delair MarineAutonomous underwater solutions for professional and drone for diving and yachting activities |
Marseille, France | Operational | |||
Tethys RoboticsAutonomous underwater drones for rapid and effective search and rescue missions |
Zurich, Switzerland | Operational | |||
HydromeaSensing systems for the Subsea Environment |
Renens, Switzerland | Operational | |||
Skarv TechnologiesVertically integrated autonomous underwater sensing solutions |
Trondheim, Norway | Operational | |||
HonuWorxAutonomous subsea motherships deploying robotic systems offshore |
Aberdeen, United Kingdom | Operational | |||
SaildroneUnmanned surface vehicles for maritime data and surveillance. |
United States | Operational | |||
BeamRobotic ships and underwater robots to service offshore wind farms |
Bristol, United Kingdom | Operational |
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed2 investors entered at this stage
NYSERDA
National Offshore Wind Research & Development Consortium
Series A1 investor entered at this stage
AE Industrial Partners
Series B and later8 investors entered at this stage
I Squared Capital
Mercury Capital Advisors- HCHegemon Capital
RiverPark Ventures
Ducenta Squared Asset Management
Hanwha Asset Management
The Chertoff Group
Yellow Submarine
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about ThayerMahan on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See ThayerMahan’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.







