# Quilt

> Quilt is a Redwood City climate-tech company building a software-defined ductless heat pump for room-by-room home heating and cooling. Founded in 2022 by former Google and Nest people, its system pairs an outdoor compressor with slim indoor heads that carry millimeter-wave occupancy sensors, a Quilt Dial thermostat, and an app that ships over-the-air updates so the hardware gets smarter after install. Quilt sells direct-to-consumer through certified installers and has raised $62M across seed, Series A, and Series B rounds to move households off fossil-fuel heating.

- **Founded:** 2022
- **Headquarters:** Redwood City, California, United States
- **Founders:** Paul Lambert (Co-founder & CEO), Bill Kee (Co-founder & COO), Matthew Knoll (Co-founder & CTO)
- **Team size:** ~79 employees
- **Products:** Quilt Heat Pump System, Quilt Dial, Quilt App, Occupancy sensing (Auto-Away)
- **Notable:** Described as the first new heat pump OEM in roughly 60 years, New York Times Wirecutter called it 'an energy-saving mini-split you won't want to hide', Reached ~1,000 installations across 16 U.S. states and 5 Canadian provinces

## Products & services

- **Quilt Heat Pump System** — A ductless, multi-zone air-source heat pump for residential heating and cooling. Pairs an outdoor unit with slim indoor heads (about 7 7/8 inches tall) rated 25+ SEER2, using R32 refrigerant for cold-climate performance.
- **Quilt Dial** — A physical smart thermostat/controller for room-by-room temperature control alongside the app.
- **Quilt App** — Mobile app for scheduling, real-time energy usage insights, remote diagnostics, and over-the-air firmware updates.
- **Occupancy sensing (Auto-Away)** — Each indoor head carries a millimeter-wave occupancy sensor that detects presence even when people are still, automatically dialing back conditioning in empty rooms.

## Achievements

- Described as the first new heat pump OEM in roughly 60 years
- New York Times Wirecutter called it 'an energy-saving mini-split you won't want to hide'
- Reached ~1,000 installations across 16 U.S. states and 5 Canadian provinces
- Raised $62M total across seed, Series A, and Series B
- Built a heat pump with a millimeter-wave occupancy sensor and over-the-air software updates

## Latest updates

- **2025-12** — Closed a $20M Series B led by Energy Impact Partners and Galvanize to expand U.S. and Canadian sales; total funding reaches $62M. Galvanize's Veery Maxwell and former Nest CFO Tom vonReichbauer join the board.
- **2026-02** — CEO Paul Lambert featured by CleanTechnica on making heat pumps 'cool (and smart).'
- **2025** — Expanded to Seattle with flagship installation partner Home Comfort Alliance and reached ~1,000 installs across 16 states and 5 Canadian provinces.

## Links

- Website: https://quilt.com
- LinkedIn: https://www.linkedin.com/company/quilthome
- Twitter/X: https://twitter.com/quiltair

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Profile page: https://yespress.io/quilt
Published by YesPress — https://yespress.io
Last updated: 2026-07-10