Carrier Johnson + Culture Merges with Communita | Atelier

Johnson, Mirmiran & Thompson (JMT) Combines with Clark Nexsen

May 21, 2025

Engineering Services

Johnson, Mirmiran & Thompson (JMT) and Clark Nexsen are merging, with Clark Nexsen joining JMT's 100%-employee-owned structure to create a combined AEC firm of more than 2,750 employees. The transaction expands JMT's architecture and engineering capabilities and geographic footprint across the Mid-Atlantic and Southeast, strengthening positions in education, federal, and transportation markets.

UST Acquires MobileComm to Expand Telecom Engineering Capabilities

August 29, 2023

Telecommunications

UST has acquired MobileComm, a Dallas-based telecom engineering firm with over 1,300 employees, to strengthen its telecommunications practice and accelerate offerings in 5G, private cellular and Open RAN. The acquisition merges UST's cloud and devsecops capabilities with MobileComm's wireless engineering expertise to deliver enhanced solutions for Communications Service Providers and enterprise private network customers.

Cumming Group Merges with Seneca Group

October 17, 2025

Consulting

Cumming Group has merged with Seneca Group, bringing more than 70 Seneca professionals into Cumming’s platform to expand the firm’s Pacific Northwest capabilities. The combination strengthens Cumming Group’s owner-advisory, project management, and cost-consulting services for corporate, healthcare, and education clients and expands its regional and international footprint.

Cook & Boardman Acquires B.R. Johnson, LLC

August 1, 2024

Building Products

The Cook & Boardman Group LLC has acquired B.R. Johnson, LLC, a multi-location distributor and installer of windows, doors and specialty building products headquartered in Syracuse, New York. The acquisition, C&B's sixth under majority owner Platinum Equity, will allow Cook & Boardman to expand its commercial entry solutions footprint and service capabilities in Central New York; terms were not disclosed.

Corgan Acquires Cooper Robertson

November 3, 2025

Professional Services

Dallas-based architecture and design firm Corgan has acquired New York–based Cooper Robertson. Terms were not disclosed; Cooper Robertson’s team and client relationships will integrate into Corgan to deepen its presence in the Northeast and expand capabilities across higher education, civic, and cultural design markets.

Johnson Controls Acquires Tempered Networks

June 23, 2022

Cybersecurity

Johnson Controls acquired Seattle-based Tempered Networks to integrate its Airwall zero-trust cybersecurity platform into Johnson Controls’ OpenBlue smart‑buildings stack. The deal strengthens Johnson Controls’ ability to provide end‑to‑end zero trust security for connected building systems and to embed Tempered’s technology across its products and services; financial terms were not disclosed.