OceanSound Partners Acquires Antenna Research Associates

Artemis Capital Partners Acquires Diamond Antenna and Microwave Corporation

November 14, 2024

Aerospace & Defense

Boston-based private equity firm Artemis Capital Partners has acquired Diamond Antenna and Microwave Corporation, a Littleton, Massachusetts developer and manufacturer of high-reliability RF rotary joints and rotating subsystems for aerospace, defense and space applications. Artemis says Diamond will continue to operate independently from its Littleton facilities and that the firm plans to invest in technical capabilities to deepen Diamond's offerings to prime integrators and government customers.

Ondas Holdings (American Robotics) Acquires Ardenna

March 21, 2022

AI & Machine Learning

Ondas Holdings, through its subsidiary American Robotics, entered into a definitive agreement to acquire Ardenna, a provider of image-processing and machine-learning software for rail infrastructure inspections. The deal will integrate Ardenna's Rail-Inspector analytics into American Robotics' Scout autonomous drone platform to deliver end-to-end monitoring and inspection solutions for the rail industry; Ardenna is a wholly-owned subsidiary of Bihrle Applied Research Inc., and the acquisition was expected to close in Q2 2022.

ARKA Group Acquires Maxar's Radar and Sensor Technology (RST) Group

November 1, 2024

Aerospace & Defense

ARKA Group, L.P. has completed the acquisition of Maxar’s Radar and Sensor Technology (RST) group, a Ypsilanti, Michigan–based radar and sensor engineering team that supports U.S. government synthetic aperture radar (SAR) programs. The acquisition adds radar, moving-target indication and full‑spectrum geospatial intelligence capabilities to ARKA’s existing space hardware and software offerings, strengthening its mission-focused solutions for U.S. and allied defense customers.

OceanSound Partners Makes Strategic Investment in RMA Group of Companies

September 28, 2021

Environmental Services

An affiliate of OceanSound Partners has made a strategic (minority) investment in RMA Group of Companies, a California-based provider of technology-enabled laboratory testing, inspection, and quality management services. RMA's existing management team, led by President and CEO Ed Lyon, retains a significant ownership stake and will continue to lead the business as the partner supports organic growth and add-on acquisitions to expand capabilities and geographic reach.

Ephicacy Consulting Group Acquires Advance Research Associates

May 2, 2024

Healthcare Services

Ephicacy Consulting Group, a biometrics CRO based in Iselin, New Jersey, has acquired Advance Research Associates (ARA), a biostatistics and data management provider based in Santa Clara, California. The add-on expands Ephicacy’s clinical analytics capabilities—particularly in biostatistics and data management—to better serve pharmaceutical, biotechnology, and medical device clients; terms were not disclosed.

Radiance Technologies Acquires Phased n Research

March 31, 2025

Aerospace & Defense

Radiance Technologies, a 100% employee‑owned prime contractor based in Huntsville, Alabama, has acquired Phased n Research, a radar and electronic warfare (EW) engineering firm founded in 2018. The deal brings Phasedn’s radar, modeling & simulation, and EW capabilities into Radiance’s portfolio; founder Dr. Bassem Mahafza will move to an emeritus/advisor role and Dr. Mark Tillman will become President of Phasedn to ensure continuity and alignment with Department of Defense modernization efforts.