2026
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Zweig Group Recognizes SWCA as One of the Fastest-Growing AEC Firms of 2026
Senior Marketing Specialist
Kelli Klein
Kelli joined SWCA in 2022 and brings expertise in crafting engaging internal content that highlights the company’s culture and achievements. She focuses on initiatives such as employee spotlights, awards, new hires, promotions, and programs like SWCA Gives Back and Spreading the Science, helping to foster connection and celebrate successes across the organization.
Kelli holds a Bachelor of Arts in Organizational Communication from California State University – Channel Islands. Based in Thornton, Colorado, she enjoys cultivating her seasonal outdoor garden and caring for her year-round collection of over seventy houseplants. When she is not gardening, Kelli is often tackling DIY home improvement projects and spending time with her husband and their three animals.
Written By
Kelli Klein
Senior Marketing Specialist
Posted
June 2, 2026
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SWCA is recognized on Zweig Group’s 2026 Hot Firm List, which honors the fastest growing architecture, engineering, environmental, planning and construction (AEC) firms.
The Zweig Group Hot Firm List recognizes the 100 fastest-growing AEC firms in the United States and Canada, who have outperformed the economy and competitors to become leaders in their chosen fields. Firms are ranked based over a three-year period of growth in gross revenue, by both percentage and dollar growth. SWCA placed at #21 out of 100 firms.
SWCA’s market diversification and employee/client satisfaction focus contributed to growth in company size and revenue over the last three years. SWCA continued expanding our nationwide presence by adding a new office in Gainesville, Florida; adding a team in Philadelphia, Pennsylvania to offer new expertise in economics, spill response, and Natural Resource Damage Assessments (NRDA); and making strategic acquisitions in California, Montana, and Oregon to support further growth in engineering and ecosystem restoration. Our power and resilience services continue to respond to organic market growth, and key hires propelled our data acquisition, visual resources, and siting and routing services.
The complete list of winners can be accessed here.
