COVINGTON, La. — Ampirical has been named to the Inc. 5000 list of the fastest-growing private companies in America for the 9th time, ranking No. 1,470 overall on the 2026 list, a significant jump from its No. 3,652 ranking in 2025. Ampirical’s overall ranking nearly doubled from the previous year, climbing from No. 3,652 in 2025 to No. 1,470 in 2026, a jump of more than 2,180 spots, driven by a 3-year revenue growth rate of 240%.
Further highlighting its momentum, Ampirical also ranked No. 15 among engineering companies on the list, underscoring the strength and growth of its engineering practice within the power delivery industry.
The Inc. 5000 ranks the fastest-growing private companies in the country based on percentage revenue growth over a three-year period. This year’s honorees, as a whole, generated more than $385 billion in revenue and created more than 627,000 jobs over the past three years, according to Inc.
Ampirical’s rise up the list reflects the company’s continued expansion in workforce, project capacity, and service offerings as demand for reliable electrical infrastructure grows across the country. The company’s focus on innovation, collaboration, and client service has fueled its rapid growth and reinforced its position as a trusted partner in the power delivery industry.
Full 2026 Inc. 5000 List:https://www.inc.com/inc5000/2026
2026 Inc. 5000 Conference & Gala: https://events.inc.com/2026incconference — October 14-16 in Dallas, TX.
Methodology
Companies on the 2026 Inc. 5000 list are ranked according to their percentage revenue growth over three years, from 2022 to 2025. To qualify, companies must be privately held, for-profit, based in the U.S., and independent—not subsidiaries or divisions of other companies—as of December 31, 2025. (Since then, some companies on the list may have gone public or been acquired.) Companies must have been founded and generating revenue by March 31, 2022. The minimum revenue requirement is $100,000 for 2022 and $2 million for 2025. All honorees must pass Inc.’s editorial review.
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Inc. is the leading media brand and playbook for the entrepreneurs and business leaders shaping our future. Through its journalism, Inc. aims to inform, educate, and elevate the profile of its community: the risk-takers, the innovators, and the ultra-driven go-getters who are creating the future of business. Inc. is published by Mansueto Ventures LLC, along with fellow leading business publication Fast Company. For more information, visit http://www.inc.com