Lakewood, CO – May 28, 2025 – NEI Electric Power Engineering, Inc. is proud to announce it has been named to the 2025 Hot Firm List by Zweig Group, ranking #16 among the 100 fastest-growing architecture, engineering, and construction (AEC) firms in the United States and Canada.
About the Zweig Group Hot Firm List
This annual ranking celebrates AEC firms that demonstrate outstanding performance in growth and resilience. Companies are evaluated based on a combined score of percentage revenue growth and dollar revenue growth over a three-year period.
To qualify, firms must have earned at least $500,000 in gross revenue in 2021 and at least $1 million by 2024. Additionally, they must generate at least 50% of their revenue from AEC services.
Teamwork, Client Focus, and Innovation
“It’s an honor to be named to the Hot Firm List—and a reflection of the incredible teamwork and dedication across NEI,” said Clifton Oertli, President and CEO of NEI. “Our growth is driven by a shared commitment to client success, technical excellence, and building a more resilient and sustainable grid. I’m proud of the way our team shows up every day—serving others, solving thorny problems, and delivering infrastructure for a better tomorrow.”
Founded in 1982, NEI has grown into a multidisciplinary engineering firm with over 300 team members, delivering complex electric power infrastructure across a wide range of markets, including renewables, utilities, data centers, and industrial applications. From SCADA and substations to interconnection, BESS, and grid modernization, NEI provides integrated solutions that help clients meet the demands of an evolving energy landscape while maintaining quality, reliability, and operational excellence
Earning the #16 spot highlights NEI’s leadership in delivering high-impact engineering solutions across the power sector. The firm joins a distinguished group of companies recognized for shaping the future of the built environment.
Winners will be formally honored at a black-tie gala during the 2025 ElevateAEC Conference & Awards Gala, held September 9–11 in San Antonio, Texas.
Explore the full list of winners: Hot Firm 2025 Winners
NEI Electric Power Engineering, Inc.
12600 W. Colfax Ave Suite C-500
Lakewood, CO 80215
303-431-7895
About NEI Electric Power Engineering, Inc.
NEI Electric Power Engineering, Inc. is a multidisciplinary consulting firm specializing in high-voltage electrical infrastructure. With over 40 years of experience, NEI delivers engineering services essential to the design, optimization, and maintenance of power generation, transmission, and distribution systems. As decarbonization, renewable integration, and the electrification of transportation and industry reshape global energy systems, NEI’s deep technical expertise and client-focused approach position it as a trusted partner in enabling the transition to cleaner, more resilient power infrastructure. Headquartered in Lakewood, Colorado, NEI supports clients across North America and worldwide, providing solutions throughout all phases of the project lifecycle.
About Zweig Group
Zweig Group is the leading provider of management consulting, research, and education for the architecture, engineering, and construction (AEC) industry. Their mission is to elevate the AEC industry by helping firms thrive through strategy, insights, and industry-leading events like the ElevateAEC Conference & Awards Gala.