Ardurra Expands Transportation Capabilities and Pacific Northwest Presence with Acquisition of Perteet Inc.

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MIAMI--(BUSINESS WIRE)--Sep 15, 2025--

Ardurra Group, Inc. (Ardurra) announced today the acquisition of Perteet Inc., a Washington-based infrastructure consulting firm known for its award-winning transportation expertise and long-standing partnerships with public agencies across the state.

Ardurra, ranked #75 on Engineering News-Record’s (ENR) Top 500 list, is known for delivering complex engineering and design services to public and private entities across the United States.

Founded in 1988, Perteet has grown into a respected infrastructure consulting firm with approximately 125 professionals across six offices in Washington. The firm partners with local, county, and state agencies to deliver transportation design, utility and site engineering, construction management, environmental services, transit design, and other solutions that support safe, sustainable, and thriving communities

“Perteet brings strong transportation expertise and trusted municipal relationships that fit naturally with Ardurra’s capabilities,” said Ernesto Aguilar, PE, President and CEO of Ardurra. “Their reputation and regional presence strengthen our position in the Pacific Northwest and create new opportunities to collaborate and grow in ways that benefit our clients and communities.”

“Perteet has always been guided by the values of client service, collaboration, and community,” said Crystal Donner, PE, President and CEO of Perteet. “In Ardurra, we found a partner that shares those values while bringing the resources to help us grow and expand our impact.”

Perteet will continue to operate from its headquarters in Everett, Washington, along with six additional offices across the state. Ardurra now comprises a combined team of approximately 2,000 employees across more than 95 offices nationwide.

Morrissey Goodale, a specialized management consulting and research firm exclusively serving the architecture, engineering, and environmental consulting industries, advised Perteet on this transaction.

About Ardurra

Headquartered in Miami, Ardurra provides complex engineering, consulting, and design services for various end markets, including water, transportation, aviation, and public works across the United States. Ardurra Group, Inc. operates as a portfolio company of Littlejohn & Co., LLC. (Littlejohn). Littlejohn is a Greenwich, Connecticut-based investment firm focused on private equity and debt investments, primarily in middle-market companies. With approximately $8.0 billion in regulatory assets under management, the firm seeks to build sustainable success for its portfolio companies through a disciplined approach to engineering change. For more information about Littlejohn, visit www.littlejohnllc.com. For more about Ardurra, visit www.ardurra.com.

About Perteet Inc.

Perteet is an award-winning engineering consulting firm dedicated to enhancing the quality of life in its communities. Headquartered in Everett, Washington, Perteet partners with local, county, and government agencies to keep the cities and towns of Washington State moving forward. Since 1988, Perteet’s talented and experienced team has been committed to keeping people safe, traffic moving, and communities thriving. Learn more at www.perteet.com.

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CONTACT: Media Contact Information

Ginny Waters

813.327.6042|[email protected]

Ardurra Group, Inc

www.ardurra.com

KEYWORD: UNITED STATES NORTH AMERICA FLORIDA WASHINGTON

INDUSTRY KEYWORD: PUBLIC TRANSPORT CONSTRUCTION & PROPERTY CONSULTING ENGINEERING URBAN PLANNING TRANSPORT UTILITIES PROFESSIONAL SERVICES MANUFACTURING ENERGY

SOURCE: Ardurra Group, Inc.

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PUB: 09/15/2025 10:11 AM/DISC: 09/15/2025 10:11 AM

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