Trinity Consultants Acquires Longman Lindsey
November 29, 2023
Trinity Consultants has acquired Longman Lindsey, a New York–based full-service acoustical consultancy, and integrated it into its Built Environment pillar alongside prior acoustical acquisitions such as Cerami. Founder John Longman will remain a key leader within Trinity's Built Environment division; AEC Advisors advised Longman Lindsey on the sale.
- Buyers
- Trinity Consultants
- Targets
- Longman Lindsey
- Industry
- Engineering Services
- Location
- New York, United States
- Transaction Type
- Buyout
Explore More
Related Acquisitions
-
Trinity Consultants Acquires Meridian Consultants
December 14, 2025
Environmental Services
Trinity Consultants has acquired Meridian Consultants LLC, a California-based environmental and natural resource planning firm, to expand its CEQA, NEPA, and land use services across California and the Western U.S. Meridian’s leadership team will remain in place and the firm will operate within Trinity’s environmental consulting business to strengthen regulatory review, permitting, and land-use planning capabilities.
-
Trinity Consultants Acquires Jaffe Holden
March 18, 2025
Engineering Services
Trinity Consultants has acquired Jaffe Holden, a Connecticut-based architectural acoustics, audio and video design consultancy, to strengthen Trinity's built environment capabilities. Jaffe Holden will operate within Trinity's built environment business alongside Cerami, Valcoustics and Longman Lindsey, with the Jaffe Holden leadership team remaining in senior roles.
-
Trinity Consultants Acquires Valcoustics Canada Ltd.
December 19, 2023
Professional Services
Trinity Consultants, a global environmental and built-environment consulting firm, has acquired Valcoustics Canada Ltd., a Toronto-based acoustical engineering consultancy. The acquisition expands Trinity’s acoustical capabilities and strengthens its presence in the Ontario and broader North American built-environment market.
-
Trinity Consultants Acquires WestLand Resources
November 30, 2023
Environmental Services
Trinity Consultants, a Dallas-based environmental consulting firm, has acquired WestLand Resources, a Tucson-based engineering and environmental consultancy with more than 240 employees. The acquisition expands Trinity's Water & Ecology capabilities and geographic footprint across the Western United States while providing WestLand employees immediate shareholder opportunities within Trinity.
-
Trinity Consultants Acquires Cerami & Associates
January 21, 2022
Engineering Services
Trinity Consultants announced the acquisition of Cerami & Associates, a 75+ person acoustics and technology consulting firm founded in 1965. The deal brings Cerami's noise, vibration, audiovisual, security and IT infrastructure expertise into Trinity's building sciences platform to expand service capabilities for building designers and industrial clients.
-
Trinity Consultants Acquires AWN Consulting
January 6, 2021
Environmental Services
Trinity Consultants, a portfolio company of Levine Leichtman Capital Partners, has acquired AWN Consulting International Limited, a Dublin-based environmental, acoustics and risk management consultancy. The add-on expands Trinity's technical capabilities and provides a strategic geographic presence in Ireland and broader Europe.
Build a buyer list for your deal
Find active buyers from recent acquisition patterns and move straight into outreach.