heat-pumps
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EnergySage puts solar sales pitches side by side
Buying solar means comparing equipment, financing and promises about the next 25 years. EnergySage built a business by putting those promises on the same page - and now wants to do the same for the rest of the electric home.
Mark Kasdorf Left the App Economy to Build a Heat-Pump Workforce
After bootstrapping a mobile studio to $25 million and selling it to Accenture, the serial founder chose a harder interface: houses, crews and the stubborn shortage of skilled labor.
The Quebec Heater Company That Survived Two Crises - Then Built an 18-Brand HVAC Machine
Innovair Solutions grew from a backyard workshop into a 1,300-person HVAC group by making an unfashionable choice: buy specialists, keep their names, and let the plumbing behind them do the merging. A C$230 million capital package now puts that Quebec playbook under its biggest test.
HomeWorks Energy, Inc.
HomeWorks Energy built a sizable climate business around an unglamorous truth: before a house can go electric, somebody has to find the drafts, explain the rebates and do the work.
Sila Services
Sila Services is assembling a regional home-repair network without sanding the names off the trucks. Its bet is that the best way to scale HVAC, plumbing and electrical work is to keep local trust out front - and put recruiting, technology and capital behind it.
Lennox
A 130-year-old furnace maker has become a $5.2 billion climate-control platform. Its real advantage is not the metal box outside the house - it is the dealer network, parts shelf and service loop wrapped around it.
Shwan Lamei
Shwan Lamei is co-founder and CEO of Emulate Energy, a Lund- and Boston-based software company that turns everyday household devices - heat pumps, EV chargers, home batteries, solar inverters - into a coordinated 'virtual battery' that utilities can dispatch on flexibility and balancing markets. Trained as an industrial engineer at Lund University, he spent 15 years in industrial B2B sales and corporate development at SWEP and Dover before starting Emulate in 2020 with a childhood friend whose MIT postdoctoral research became the technical seed of the company. In April 2025 Emulate closed a EUR 5M Series A led by Helen Ventures to scale its DER orchestration platform across Scandinavia, the DACH region and the United States.
Arch
Arch is a San Francisco startup building AI marketing and revenue software for home-services contractors - the HVAC, plumbing, electrical, and drain businesses that keep American homes running. Founded in 2023 by Phil Krinner and Sacha Schmitz, Arch plugs into ServiceTitan and public property data to find homeowners likely to need work, catch customers about to churn, and auto-generate email and direct-mail campaigns. The company began by tackling the grunt work of heat-pump sizing and quoting, and has since broadened into an 'autonomous revenue engine' aimed at helping small contractors grow without a marketing department. It raised $6.2M in seed funding in February 2024 from Coatue, Floodgate, Gigascale Capital, ReGen Ventures, and MCJ Collective.
Pascal
Pascal is a Cambridge, Massachusetts climate-tech company commercializing solid refrigerants to replace the greenhouse-gas coolants that make air conditioners, heat pumps, and refrigerators bad for the climate. Spun out of Harvard in 2023, Pascal builds cooling systems around barocaloric materials - wax-like layered solids that absorb and release heat when squeezed and released - working at pressures low enough to run on today's mass-market HVAC hardware. The company raised an $8M seed round in 2024 and aims to eliminate refrigerant emissions while cutting cost and boosting efficiency.
Adam Slavney
Adam Slavney is the co-founder and CEO of Pascal, a Cambridge, Massachusetts startup commercializing solid-state refrigerants to replace the planet-warming gases inside air conditioners, heat pumps, refrigerators and data centers. A Stanford-trained chemist who studied perovskite solar cells before a Harvard postdoc in clean-energy economics, Slavney spun Pascal out of Harvard in 2023 around a class of barocaloric materials that respond to pressure two orders of magnitude more strongly than other solids. The company raised an $8M seed round in 2024 led by Engine Ventures, with Khosla Ventures participating, and later added a Series A to scale prototypes. Slavney's pitch is blunt: heating and cooling burn nearly 40% of the world's energy and the refrigerants doing it cause about 2% of global warming, and he wants to keep the cooling while deleting the climate cost.
Phil Krinner
Phil Krinner is the co-founder and CEO of Arch, a San Francisco company building AI revenue software for home services contractors, starting with HVAC and heat pumps. A Stanford GSB graduate and former McKinsey strategy consultant who once built large-scale solar plants and installed panels himself, Krinner started Arch after asking 15 contractors to quote a heat pump for his apartment and finding that not one could tell him whether it would save money. Arch uses public home data and AI to help contractors find the right homes, size systems in minutes, and run hyper-personalized campaigns. The company raised a $6.2M seed round in 2024 led by Coatue with Floodgate, Gigascale, ReGen and MCJ.