Chouest Group Acquires Kystdesign

Edison Chouest Offshore Acquires ROVOP from Bluewater

May 2, 2024

Energy

Edison Chouest Offshore has acquired Aberdeen-headquartered ROVOP from energy-focused private equity firm Bluewater. ROVOP, a leading provider of ROV subsea services that grew under Bluewater's ownership to £53 million in FY2023 revenue, will be integrated into Edison Chouest’s global marine and subsea capabilities.

Norvestor Acquires Kongsberg Maritime's Steering Gear and Rudder Business to Form Neuver Maritime

March 3, 2025

Manufacturing

Norvestor IX has completed the acquisition of Kongsberg Maritime's steering gear and rudder business and established the new company Neuver Maritime. The carve-out, headquartered in Brattvåg, Norway with ~160 employees, positions Neuver as a dedicated lifecycle partner for maneuvering solutions with a focus on aftermarket, service and product expansion under Norvestor ownership.

Vatn Systems Acquires Crewless Marine

January 9, 2026

Aerospace & Defense

Vatn Systems, a Portsmouth, Rhode Island defense-technology company, has acquired Rhode Island-based Crewless Marine to bring advanced underwater acoustic sensing and real-time signal-processing capabilities in‑house. Crewless Marine co‑founders Dr. Steve Bordonaro and Dr. Philip Caspers will join Vatn in senior engineering roles; financial terms were not disclosed. The deal strengthens Vatn’s vertical integration, reduces supply‑chain dependencies, and accelerates development of AUV acoustic capabilities for defense and environmental markets.

Nauticus Robotics Acquires 3D at Depth

October 3, 2023

Engineering Services

Nauticus Robotics (NASDAQ: KITT) agreed to acquire 3D at Depth, a Colorado-based subsea LiDAR and inspection services provider, in an all-stock transaction valuing the deal at approximately $34 million (before adjustments) and assuming about $4.1 million of debt. The acquisition brings 3D's subsea laser LiDAR technology, data services, and patent portfolio to Nauticus, expanding its autonomous underwater capabilities and commercial addressable market in offshore energy and renewables.

Subsea Global Solutions Acquires SRN Group Diving & ROV Underwater Services

September 14, 2021

Industrial Services

GenNx360 Capital Partners' portfolio company Subsea Global Solutions (SGS) has acquired SRN Group Diving & ROV Underwater Services, a Belgium-based underwater services and ROV hull-cleaning specialist. The add-on expands SGS's footprint into northern Europe (increasing its home ports to 14) and adds ROV-based hull-cleaning capability to its service offering.

Nauticus Robotics Acquires SeaTrepid International

March 20, 2025

Energy

Nauticus Robotics (NASDAQ: KITT) completed the acquisition of all assets and business of SeaTrepid International, a provider of subsea robotic services, and has begun integrating SeaTrepid operations into Nauticus. The deal is expected to accelerate Nauticus' autonomous subsea services offering and drive operational growth across offshore and defense end markets.