Multinational professional services firm Deloitte released its 2025 Technology Fast 500 list, a yearly ranking of the fastest-growing public and private companies across North America. This year marks the 31st iteration of the list, which covers the media, telecommunications, life sciences, fintech and energy tech sectors. The ranking features 14 Seattle companies — equal to the number of local companies recognized last year.
“With significant capital deployed by AI infrastructure companies and related ecosystem partners, it’s encouraging to see continued venture capital funding innovation in other technology sectors,” Don Heisler, Deloitte Seattle managing partner, said in a statement. “Congratulations to all 2025 Deloitte Technology Fast 500 honorees. We look forward to your continued growth and innovation.”
The Technology Fast 500 focuses on fiscal year revenue growth over a three-year period. The 2025 awardees reported growth rates ranging from 122 percent to 29,738 percent between 2021 and 2024, with the average growth rate at 1,079 percent. More than half of the companies included come from the software and services sector, which also represents 44 percent of the featured companies in the Pacific Northwest.
“We’re excited to see Seattle-area organizations well-represented on this year’s Deloitte Technology Fast 500 list, including the top-ranked company in the communications and networking sector. Our region’s dynamic mix of established companies and emerging innovators continues to fuel breakthrough advances, particularly in the fintech and software sectors,” said LiseMarie Curda, partner for Deloitte & Touche and Pacific Northwest Technology Fast 500 program leader, in a statement.
Keep reading to find out more about the top five Seattle companies included in the 2025 ranking, and check out the full list for additional details.
Top Seattle Tech Companies on Deloitte’s 2025 Technology Fast 500
- Teal Communications
- Copper
- Esper
- SeekOut
- Pulumi
Ranked #39, 2,961% Growth
Teal Communications, the highest ranked communications and networking sector company on the entire 2025 Deloitte list, facilitates secure, flexible connectivity to support enterprises’ critical operations through its Network Orchestration Service and eSIM technology. It was also featured as the fastest growing company in Washington state and the ninth fastest growing U.S. software company on the 2025 Inc. 5000 list.
Ranked #69, 1,447% Growth
Copper is focused on financial empowerment, offering an app that allows users to earn money by connecting a debit or credit card and scanning receipts to collect cash back rewards based on their purchases. Users can also play mobile games, complete surveys and invite friends to the app to grow their earnings. Founded in 2019, the company’s technology has helped its members earn more than $3.1 million.
Ranked #142, 561% Growth
Esper develops enterprise-grade technology to streamline device management, offering Android, iOS and Linux solutions. Its products are designed to enable operational efficiency and drive growth by helping businesses with everything from ensuring consistency across self-ordering restaurant kiosks to enabling real-time monitoring for remote healthcare devices. Esper was also included in Deloitte’s 2024 ranking.
Ranked #152, 529% Growth
SeekOut offers an agentic AI recruiting service known as SeekOut Spot and an AI-enabled platform called SeekOut Recruit that supports cross-channel talent acquisition. The company was founded in 2017 by a team of artificial intelligence and machine learning experts and has raised a collective $189 million in funding.
Ranked #154, 527% Growth
Pulumi’s unified platform features infrastructure as code, secrets management, policy governance and AI automation capabilities. Its comprehensive set of tools is meant to help engineers ship infrastructure faster, and it comes with an AI agent called Neo that can automate complex infrastructure tasks. Pulumi also made an appearance on Deloitte’s 2024 list.
