TYLin Acquires Architectural Engineers Collaborative

T.Y. Lin International Acquires Structural Engineering Firm Silman

April 8, 2021

Engineering Services

T.Y. Lin International (TYLI), a global infrastructure consulting firm and member of Dar Group, has acquired Silman, a New York–based structural engineering firm founded in 1966. The acquisition brings Silman’s ~160 staff and deep capabilities in structural engineering, historic preservation, and adaptive reuse into TYLI to strengthen its Buildings Market Sector and expand technical capacity across the Americas.

Tandem Engineering Acquires Ann Arbor Architects Collaborative, Inc.

February 2, 2026

Professional Services

Tandem Engineering has acquired Ann Arbor Architects Collaborative, Inc., a multidisciplinary architecture and interior design firm based in Ann Arbor, Michigan; the deal closed on February 2, 2026. The acquisition expands Tandem’s integrated engineering and project management capabilities by adding architecture, interior design and sustainable-design expertise to its service offering.

TYLin Acquires Greeley and Hansen

December 21, 2022

Engineering Services

TYLin has acquired Chicago-based Greeley and Hansen, a century-old engineering firm focused on water, wastewater and environmental engineering, to strengthen its water-sector capabilities across North America and Latin America. Greeley and Hansen will operate as "Greeley and Hansen, A TYLin Company," with several senior leaders transitioning and some retiring as part of the integration.

Tata Consulting Engineers Acquires CDI Engineering Solutions from AE Industrial Partners

January 8, 2025

Engineering Services

Tata Consulting Engineers (TCE) has completed the acquisition of CDI Engineering Solutions, a Houston-based multi-discipline EPCM and engineering firm, from private equity firm AE Industrial Partners. CDI, with 600+ employees and eight engineering centers, expands TCE's U.S. footprint and strengthens its capabilities in energy transition, semiconductors and advanced manufacturing.

Dunaway Acquires BEC Engineers and Consultants

July 7, 2023

Engineering Services

Dunaway has acquired Houston-based BEC Engineers and Consultants, establishing its first Houston office and bringing on BEC leadership to lead regional growth. The acquisition expands Dunaway's civil and structural engineering capabilities—adding foundation analysis, construction inspection and residential expertise—and launches a Houston team of nearly 50 professionals.

Architect Equity Acquires Timec Oil & Gas From Ferrovial S.A.

November 12, 2021

Industrial Services

Architect Equity has acquired Timec Oil & Gas, a Houston-headquartered provider of maintenance, turnaround and construction services for the energy sector, from Ferrovial Services North America (a division of Ferrovial S.A.). Timec operates multiple regional bases across the United States and serves large oil & gas and refining customers; Architect plans to partner with management to expand core capabilities and pursue growth in adjacent energy markets. The transaction is part of Ferrovial's broader divestment of non-core services operations.