Lochner Acquires K Friese + Associates

H.W. Lochner Acquires KOA Corporation

December 21, 2022

Engineering Services

H.W. Lochner, Inc. has acquired KOA Corporation to expand Lochner's transportation engineering and infrastructure services presence in Southern California. KOA, a 100+ person firm founded in 1987 with multiple offices across California, provides transportation engineering, mobility planning, and construction management for public agencies and private clients.

H.W. Lochner Acquires Armstrong Consultants

December 15, 2022

Engineering Services

H.W. Lochner, Inc. has acquired Armstrong Consultants, a Grand Junction, Colorado–based airport engineering and planning firm. The acquisition expands Lochner's aviation practice, broadens its geographic presence across the western United States, and adds Armstrong's airport planning, engineering, and construction administration capabilities to Lochner's service offering.

Egis Merges with Lochner to Expand U.S. Footprint

August 4, 2025

Engineering Services

Global engineering and consulting firm Egis has merged with U.S.-based infrastructure firm Lochner, positioning Lochner as the cornerstone of Egis' U.S. expansion. The combined organization brings together Lochner’s more than 1,100 professionals and Egis’ U.S. team to pursue organic and acquisitive growth across transportation, water, energy, and environmental markets.

Lochner Acquires Triunity, Inc.

November 20, 2023

Engineering Services

H.W. Lochner, Inc. acquired Triunity, Inc., a Denver-based engineering, program/project management, and construction management firm, to expand Lochner's Transit & Rail and Municipal Services capabilities and establish a National Transit & Rail Practice. Triunity will operate as "Triunity, Inc., A Lochner Company" with founders Jonnie and Marvin Thomas remaining in leadership roles.

CHA Consulting Acquires Frazier Engineering

October 13, 2022

Engineering Services

CHA Consulting, Inc. has acquired Frazier Engineering, a Charlotte-area civil engineering firm specializing in sewer system assessment, flow monitoring, rehabilitation design and construction management. The 45-employee firm will be rebranded as CHA Consulting, Inc. and expand CHA’s water/wastewater capabilities and geographic footprint across the Southeast.

Fremont-Wright LLC Acquires Harmsen & Associates, Inc.

October 3, 2018

Engineering Services

Fremont-Wright LLC has acquired Harmsen & Associates, Inc., a civil engineering and land surveying firm based in Washington state. The buyer intends to integrate Harmsen's surveying, land-use planning and civil engineering capabilities into its national platform to expand service offerings and geographic coverage.