KJWW and TTG Merge


(Quad Cities, IL) KJWW Engineering and TTG Engineers have strategically aligned in a merger of the two U.S.-based international firms.

The merger creates a 900-employee workforce spread across 25 national and five international locations. In addition to offering an expanded geographic reach, the alignment allows a greater depth and breadth of engineering, project management, and building design services to be available from the merged organizations, which will continue to operate as KJWW and TTG under the creation of a holding company with common management.

Commonality between the similarly-sized firms was a driving factor behind the merger.

"We saw similarities with TTG and know that by leveraging our similar visions, cultures, and market strategies we can serve additional world-class clients and talent,” says Paul VanDuyne, PE, president of KJWW, headquartered in the Quad-Cities, Ill.

"We chose a merger with KJWW because of its strong reputation and similar market focus,” says Zareh Astourian, PE, SE, president of TTG, headquartered in Pasadena, Calif. "Culturally, it was a great fit. We both share the same commitment to our clients and quality standards.”

TTG and KJWW, founded in 1955 and 1961, respectively, combine to bring 114 years of experience, along with many award-winning projects and "firsts” in sustainable design, such as the world’s largest lake-coupled geothermal system, the largest LEED Platinum office building in the U.S., the first LEED Platinum data center in the U.S., the first LEED Platinum university building in Illinois, and the first GSA-owned LEED Platinum building in the nation.

"The merger gives TTG and KJWW a larger presence throughout the U.S. and strengthens our collective dominance in the healthcare, higher education, government, entertainment, industrial, and transportation markets,” says Astourian. Other primary markets of the combined firms include aviation, corporate, commercial, corrections, hospitality, housing, mission critical, science and technology and sports and recreation.

"The firms bring together a highly-skilled peer group with different talents and strengths that are grounded in collaboration and high-quality design,” says VanDuyne. "This merger allows us to build on those strengths with greater geographic mobility.”

Project engineering teams of both KJWW and TTG will remain intact and continue to provide a wide range of leadership expertise in high-performing building systems, infrastructure, and construction-related services. Management and engineering services include mechanical, electrical, plumbing, fire protection, structural, civil, technology, bridge, acoustics, medical equipment planning, architectural lighting, energy modeling, sustainability and LEED design, construction management and commissioning.

Growth of KJWW Engineering Consultants

Founded in 1961 by Walter G. Kimmel, KJWW has grown to 500 employees in 16 offices worldwide. KJWW’s dramatic growth over the years can be attributed to innovative engineering solutions, a collaborative project approach, and the firm’s on-going commitment to education and employee retention. KJWW is currently ranked as the 12th largest among engineering firms in the U.S. (BD+C Giants Report), 2nd largest MEP engineering firm in the Midwest (ENR), and is 204thamong Top 500 Design Firms in the U.S. (ENR).

Growth of TTG Corp

TTG is a full-service engineering consulting firm with a team of over 360 professionals. Founded in 1955, TTG has 12 locations in the U.S. and three international locations. TTG’s services cover the full spectrum of engineering—including construction support services needed to successfully carry projects from planning through construction phases. TTG is currently ranked as the 14th largest engineering firm in the U.S. (BD+C Giants Report) and 234th among Top 500 Design Firms in the U.S. (ENR).

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