Built on Trust. Mission Proven.
ESCO Maritime was formed in 2025 through the acquisition of Ultra Maritime’s Signature Management and Power business unit, comprising EMS Development Corporation, Measurement Systems Inc. (MSI) and DNE Technologies Inc. (DNE) in the US, and Ultra Electronics PMES in the UK.
For decades, we have supported naval and defense programs across the US, UK, and allied nations, working in close partnership with customers to solve complex operational challenges in contested environments.
Our footprint spans both sides of the Atlantic, with four prime locations that offer truly inspiring environments to work in. In the US, our teams enjoy the coastal charm of Yaphank on New York’s Long Island and the historic, scenic landscapes of Wallingford, Connecticut. And, in the UK, Rugeley, Staffordshire the industrial heart of the West Midlands and the leafy surroundings of Loudwater in High Wycombe.
Our facilities are centers of excellence where our team of over 510 skilled, talented professionals collaborate in a vibrant, growing company. We understand naval platforms, underwater systems, and the realities of defense procurement and we pride ourselves on being a place of genuine opportunity
Our Journey
EMS Development Corporation in Yaphank, NY was founded in March 6, 1972
DNE Technologies (DNE) was originally founded as Stelma, Inc. in 1951 in Stamford, CT, later becoming Dataproducts New England, relocated to Wallingford, CT in 1977, and then officially renamed DNE Technologies, Inc. in 1993 following its acquisition by the Alpine Group, focusing on tactical communication products
Measurement Systems, Inc. (MSI) was founded in 1960 in Norwalk, CT, then moved to Fairfield, CT and ultimately ended up in Wallingford, CT as of March 15, 2005
RFI Corporation (RFI) founded in 1961 in Bay Shore, NY was a subsidiary of DGT Holdings Corp. (formerly Del Global Technologies) and moved to the Yaphank, NY facility soon after the acquisition by Ultra Electronics Holdings in 2012
British Electronic Products 1946
Lancashire Dynamo Electronic Products Ltd, based in Rugeley, was formed around 1947–1948 and became a key subsidiary of Lancashire Dynamo Holdings Ltd in the 1950s.
Thorn Automation also known as Thorn Electrical Industries 1967
Thorn EMI 1981
PMES 1994
Ultra Electronics Holdings plc in the UK (now Cobham Ultra) acquired the following:
- EMS Development Corporation on May 16, 1997
- DNE Technologies (DNE) on June 22, 2004 from The Alpine Group
- Measurement Systems, Inc. (MSI) in 2006
- RFI Corporation (RFI) from DGT Holding Corporation on August 16, 2012
Advent International acquisition from Ultra Electronics Holding plc finalized in August 2022 and turning Ultra Electronics into private entity under Advent’s ownership creating Ultra Maritime and the Signature Management & Power business (SM&P)
ESCO Technologies acquisition of the Signature Management & Power (SM&P) businesses from Ultra Maritime, an Advent International portfolio company, finalized on April 28, 2025 creating ESCO Maritime Solutions.
Our Values
Quality
We put quality at the forefront of everything we do, learning from experience and continuously improving. Our commitment is to deliver zero-defect, highly reliable products and services.
Customer Service
We are a trusted partner, fully committed to supporting our customers to deliver their mission, and always asking ourselves what more we can do to enable their success.
Safety
Safety is embedded in every aspect of our operations. Protecting our people, our products, and those who rely on them to help make the world a safer place.
Teamwork
We operate as one team, collaborating with colleagues, customers, suppliers, and partners. By combining our strengths, we solve our problems together to win as a team.
Innovation
We push the boundaries of what we do and how we do it, delivering solutions at pace to meet our customers’ evolving needs. Our innovations put world-class capability in the hands of those who protect us.
Integrity
We act with honesty, accountability, and professionalism in every decision and behaviour. We do the right thing, even when no one is watching.
ESCO Maritime’s Pledge to Support our Armed Forces Community
ESCO Maritime is intensely passionate about the work that we do with the Armed Forces, and the support we offer to the Armed Forces community. That’s why we signed the Armed Forces Covenant in October 2025, confirming our ongoing commitment to ensuring fairness and equal opportunity for Service and ex-Service personnel, Reservists and their families.
