Terracon Acquires Marx Okubo Associates

The employee-owned engineering firm adds 200 staff and the 1982-founded architecture consultancy to its national operations.

Updated on Nov. 2, 2026 in Jobs — General

Terracon, an employee-owned firm, has acquired Marx Okubo Associates, Ltd., an employee-owned national architecture, engineering, and construction consultancy. The firm will operate as Marx Okubo, A Terracon Company, and its 200 employees have become part of Terracon.

Why it matters

The deal gives Marx Okubo access to Terracon's regional and nationwide support network. It also expands Terracon's roster of design services across its more than 200 U.S. locations.

Marx Okubo adds 200 employees to Terracon's more than 8,000-person workforce, which operates from more than 200 locations nationwide. Terracon is ranked as a top 20 design firm by Engineering News-Record.

The players

Terracon

Terracon is an employee-owned engineering and consulting firm with more than 8,000 employees and over 200 locations across the United States.

Marx Okubo Associates, Ltd.

Marx Okubo Associates is an employee-owned national architecture, engineering, and construction consultancy founded in 1982.

The details

Terracon announced the acquisition of Marx Okubo Associates, Ltd., which was founded in 1982. Nearby Terracon offices in Denver, the San Francisco Bay area, Seattle, Los Angeles, Dallas, Atlanta, and New York will support the Marx Okubo offices.

1982: Marx Okubo Associates is founded.
November 2, 2026: Terracon announces the acquisition.

Market Landscape

Terracon's position among Engineering News-Record's top 20 design firms places the acquisition within a broader pattern of established engineering firms expanding through the purchase of regional and specialty consultancies. The deal adds architecture and construction consulting capacity to a firm already operating at national scale.

Marx Okubo's 200 employees are now part of Terracon, which may affect their benefits, reporting structure, and project assignments. Clients of Marx Okubo will continue working with the firm under its new Terracon affiliation.

The takeaway

Employee-owned firms joining larger networks can gain regional reach while keeping their staff structure intact. Watch for how Marx Okubo's office operations evolve under Terracon's support model.