Phaidra
Phaidra, founded in 2019 in Seattle, USA, develops control systems designed to optimize the performance of industrial facilities, including data centers.
About
Phaidra, founded in 2019 in Seattle, USA, develops control systems designed to optimize the performance of industrial facilities, including data centers. For many data centers, cooling is one of the most energy-intensive components, with cooling systems consuming approximately 40% of a typical data center's total power.
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Capital graph
Funding history
- 2025-10Series B$50M
Investors · NVIDIA, Collaborative Fund, Sony Innovation Fund, Helena, Index VenturesSource · SVTR Weekly #125
- 2024-07New funding round$12M
Investors · Index VenturesSource · SVTR Weekly #060
Comparable companies· by market
This company
BusinessLatest roundTotal raisedDate- Phaidra
Uses AI to improve data center energy efficiency
Series B · $62M · 2025-10
$62M
United States
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$31M - Verse Inc.
Energy management software for data centers and large power users, dispatching storage and grid resources to shorten time to power for AI compute.
Series B · 2026-06
— - Omen AI
Real-time fluid monitoring with spectral sensing for data center liquid cooling systems.
Series A · $40M · 2026-06
$40M
China
BusinessLatest roundTotal raisedDate- 芯擎宇能
Xinqing Yuneng, founded in 2025 in Shanghai's Lin-gang by SJTU professor Hu Zhiyu's team, develops micro-electro-mechanical energy (MEME) thermoelectric chips integrating about 60,000 thermoelectric pairs on a single silicon die to generate power from very small temperature differences, targeting industrial waste-heat recovery and data-center cooling.
— - DeepCtrls
Deep energy-saving control services for industrial and building MEP energy systems, based on in-house physical AI engine (PhyAI)
Series B · 2026-09
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Europe
BusinessLatest roundTotal raisedDate- Nyobolt
High-power ultra-fast-charging batteries and integrated energy systems built on patented niobium tungsten oxide anode technology, for scenarios requiring 24/7 high-intensity operation such as warehouse autonomous mobile robots, AI data centers, EV fast charging, power grids and industrial fleets.
Series C · $160M · 2026-05 · Valuation $1.0B
$160MValuation $1.0B - Vanellus
Cloud GPU-based electronics thermal simulation (CFD) solver delivered via API, for data center, server and consumer electronics thermal teams.
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Other / unspecified
BusinessLatest roundTotal raisedDate- Firmus Technologies
Immersion liquid-cooled AI data centers and GPU cloud services
Strategic · $2.8B · 2026-04 · Valuation $5.5B
$2.8BValuation $5.5B - Cybernetic Physics
Robots for data center construction and operations: simulation training, VLA policies and inference, humanoid robot task execution and teleoperation
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Confirmed rounds only. Matched on subsector, sector, stage and funding scale — each verifiable on the company profiles.
Investors that may fit
Lowercarbon Capital
10 Climate & Sustainability deals in the last 24 months · 8 at a nearby stage · 9 in Seattle Metro
Request intro →Energy Impact Partners
8 Climate & Sustainability deals in the last 24 months · 4 at a nearby stage · 6 in Seattle Metro
Request intro →Gigascale Capital
7 Climate & Sustainability deals in the last 24 months · 5 at a nearby stage · 7 in Seattle Metro
Request intro →Breakthrough Energy Ventures
6 Climate & Sustainability deals in the last 24 months · 4 at a nearby stage · 6 in Seattle Metro
Request intro →Lightspeed
6 Climate & Sustainability deals in the last 24 months · 4 at a nearby stage · 3 in Seattle Metro
Request intro →DCVC
5 Climate & Sustainability deals in the last 24 months · 4 at a nearby stage · 5 in Seattle Metro
Request intro →Ranked by each firm’s deals in this sector over the last 24 months, weighted by nearby stage and shared geography. Indicative only — no rating judgment.