# Phaidra

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/phaidra

- Industry: IT Infrastructure
- Headquarters: Seattle, US
- Website: www.phaidra.ai
- Total disclosed funding: $98M
- Latest round: Series B (Oct 1, 2025)
- Investors on record: 13

## About

Phaidra, Inc., based in the US, specializes in artificial intelligence-driven control systems aimed at optimizing industrial facilities, particularly data centers, through advanced integration with existing automation systems. Founded in 2019 and headquartered in Seattle, US, Phaidra, Inc. develops AI control solutions for critical industrial applications. In October 2025, Phaidra, Inc. raised USD 50 million in series B funding led by new investor Collaborative Fund, with participation from other new investors Helena, Nventures, and Sony Ventures. Other unspecified and returning investor Index Ventures also participated in the round. Phaidra specializes in providing artificial intelligence-driven control systems designed to optimize mission-critical facilities, particularly in the industrial sector, including data centers. The company's core offerings include a closed-loop AI control service that integrates with existing Building Automation Systems (BAS) and Building Management Systems (BMS), allowing for real-time optimization without the need for new hardware. These systems utilize deep reinforcement learning to enhance plant stability, energy efficiency, and sustainability, addressing key challenges such as reducing downtime risks and CO2 emissions. Phaidra's technology is aimed at various sectors including technology giants like Google and ST Telemedia Global Data Centres, highlighting its applicability in both large-scale industrial environments and broader energy management applications. The company operates primarily in North America and Europe, focusing on markets that prioritize operational efficiency and sustainability.Phaidra's revenue model is predominantly based on business-to-business (B2B) transactions, facilitating partnerships with industrial clients for the deployment of its AI control systems. Clients typically engage through subscription-based agreements that provide ongoing access to Phaidra's software and support services, ensuring continuous optimization and improvement of operational efficiency. The company's flagship offerings enable clients to achieve significant energy savings and enhanced operational performance, further solidifying their value proposition in the marketplace. Specific pricing structures or plans are tailored to meet the needs of individual clients, reflecting the customizable nature of Phaidra's technology. These arrangements establish long-term relationships with clients, ensuring that operational benefits are sustained over time while addressing the pressing need for sustainable practices in industrial operations. The company will use the October 2025 funding to build more AI agents and expand to industrial operators in new countries.

## Funding rounds

- Series B, Oct 1, 2025, $50M — Index Ventures, Collaborative Fund, Sony Innovation Fund, Nventures, Helena
- Series A, Jul 2, 2024, $12M — Index Ventures
- Series A, Apr 21, 2022, $31M — Section 32, Flying Fish, Ahren Innovation Capital, Starshot Capital, Character
- Series A, May 24, 2021, $4M — Section 32, Flying Fish, Starshot Capital
- Seed, May 28, 2020, $1.5M — University of Washington, NJF Capital, Section 32, Flying Fish, Firstminute Capital

## Investors

- University of Washington — Seed
- NJF Capital (https://capitalatlas.ai/funds/njf-capital) — Seed
- Section 32 (https://capitalatlas.ai/funds/section-32) — Seed, Series A
- Flying Fish (https://capitalatlas.ai/funds/flying-fish) — Seed, Series A
- Firstminute Capital (https://capitalatlas.ai/funds/firstminute-capital) — Seed
- Starshot Capital (https://capitalatlas.ai/funds/starshot-capital) — Series A
- Ahren Innovation Capital (https://capitalatlas.ai/funds/ahren-innovation-capital) — Series A
- Character (https://capitalatlas.ai/funds/character) — Series A
- Index Ventures (https://capitalatlas.ai/funds/index-ventures) — Series A, Series B
- Collaborative Fund (https://capitalatlas.ai/funds/collaborative-fund) — Series B
- Sony Innovation Fund (https://capitalatlas.ai/funds/sony-innovation-fund) — Series B
- Nventures — Series B
- Helena (https://capitalatlas.ai/funds/helena) — Series B