Copper was founded by Sam Calisch, Eric Wilhelm in 2022.

Who are Copper's investors?

Copper's investors include Chrysalix, Climactic, Collaborative Fund, Designer Fund, Leap Forward Ventures, MMC Ventures, Necessary Ventures, Norwest Venture Partners and 14 more.

Where is Copper headquartered?

Copper is headquartered in Berkeley, US.

Copper

Berkeley, US · Founded 2022 · 65 employees on LinkedIn · 22 known investors

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Copper makes induction stoves with integrated battery energy storage that enable home electrification without major electrical upgrades. The appliances support grid decarbonization by charging when electricity is cleanest and provide power during cooking without requiring 240-volt wiring retrofits.

Cleantech Climate Tech Consumer Hardware

Founders & leadership

Copper was founded in 2022 by Sam Calisch and Eric Wilhelm.

Sam Calisch FounderBefore starting Copper in 2022 as its founder and CTO, he was Head of Special Projects at Rewiring America, where he continues to advise, and founded Elmworks, serving as its CTO. He also founded Foli Research and held an Entrepreneurial Research Fellowship at Activate.

Eric Wilhelm FounderHe founded Instructables.com in 2005 and later served as Vice President for Hardware and Communities and then Vice President of Fusion 360 at Autodesk, followed by four years as CEO of SafeConnect Solar. He sits on the board of Datatrak International and joined Copper in 2022, initially as founder and CEO and then as chief of staff before taking on the CTO role.

Chris ChengFounder

Dmitry TokarevFounder

Eddie BehringerFounder

Jon LeeFounder

Josh LandFounder

Tucker GilmanFounder

Weldon KennedyFounder

Pushan PandaFounder

Investors · 22

Chrysalixlisted by ChrysalixDelft · $36.5K – $2.9M

Climacticlisted by ClimacticSan Francisco · $1.5M – $3M

How we know: the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Collaborative Fundlisted by Collaborative FundNew York · $500K – $1M

How we know: Collaborative Fund's portfolio page · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Designer Fundlisted by Designer FundSan Francisco · $100K – $1M

How we know: Designer Fund's portfolio page · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Leap Forward Ventureslisted by Leap Forward VenturesLarkspur

How we know: Leap Forward Ventures's portfolio page · Not right? Tell us

MMC Ventureslisted by MMC VenturesLondon · $635K – $13Mvia Oliver Richards · led

How we know: MMC Ventures's portfolio page · Not right? Tell us

Necessary Ventureslisted by Necessary VenturesSan Francisco · $1M – $2M

How we know: the VCSheet dataset · Not right? Tell us

Norwest Venture Partnerslisted by Norwest Venture PartnersMenlo Park · $10M – $30M

How we know: Norwest Venture Partners's portfolio page · open dataset · 5k.vc investor directory · Not right? Tell us

Prelude Ventureslisted by Prelude VenturesSan Francisco · $100K – $5M

How we know: Prelude Ventures's portfolio page · open dataset · 5k.vc investor directory · Not right? Tell us

SBXilisted by SBXiCambridge · $10K – $1M

The E14 Fundlisted by The E14 FundCambridge · $1M – $5M

How we know: The E14 Fund's portfolio page · the VCSheet dataset · Not right? Tell us

Bloomberg BetareportedSan Francisco · $25K – $1M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

C2 VenturesreportedNew York · $100K – $500K

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Clocktower VenturesreportedSanta Monica · $100K – $20M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Dawn CapitalreportedLondon · $317.5K – $6.3M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

GV (Google Ventures)reportedMountain View · $250K – $50M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Illuminate FinancialreportedLondon · $1M – $8M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

LocalGlobereportedLondon

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Restive VenturesreportedSan Jose · $50K – $2.5M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Target GlobalreportedBerlin

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Vela PartnersreportedSan Francisco · $100K – $500K

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Voyager PartnersreportedSan Francisco · $500K – $5M

How we know: the VCSheet dataset · Not right? Tell us

Funding

SEC filings, press & company announcements

Undisclosed amountSeries AJan 2026
Source ↗

Source: company announcements and press reports — follow each round's link for the claim.

Related companies · 6

QuitCarbonQuitCarbon provides free guidance and contractor matching for residential clean energy upgrades including heat pumps, solar, EV chargers, and electrification projects. The company partners with federal, state, and municipal energy programs to help homeowners access tax credits, rebates, and qualified installers.

Lectric BoilLectricBoil manufactures a portable induction cooktop powered by rechargeable lithium-ion batteries, designed for carbon-neutral cooking and charging via vehicle, solar, or outlet power. The company focuses on sustainable manufacturing using recycled and upcycled materials.

ImpulseImpulse Labs develops a battery-integrated platform for home appliances that delivers high power from standard 120V outlets, enabling cooktops and other appliances with professional-grade performance without electrical upgrades. The platform includes power electronics, battery management, sensors, and cloud connectivity software that appliance manufacturers integrate into their products.

HouzzHouzz operates an online platform and software connecting homeowners with construction and design professionals for home building, renovation, and design projects. Its Houzz Pro product offers AI-powered project management and design tools such as 3D floor plans, mood boards, and estimates for contractors and interior designers, while homeowners use the platform for inspiration and visualization tools.

DominoDomino is a home design and lifestyle media brand covering interior design, decorating, and stylish living through editorial content from design professionals and DIYers. Operating as an omnichannel media and e-commerce company, it publishes digital issues, books, and newsletters and runs an annual home design awards program.

AmogyAmogy develops patented ammonia cracking technology that converts ammonia into electric power for hydrogen fuel cells and engines, targeting decarbonization of heavy industries including transportation and maritime. The company offers modular ammonia-to-power systems and high-efficiency catalysts as alternatives to diesel and hydrogen fuel solutions.

Companies working in the same space as Copper.

Frequently asked questions

What does Copper do?: Copper makes induction stoves with integrated battery energy storage that enable home electrification without major electrical upgrades. The appliances support grid decarbonization by charging when electricity is cleanest and provide power during cooking without requiring 240-volt wiring retrofits.
Who founded Copper?: Copper was founded by Sam Calisch, Eric Wilhelm in 2022.
Who are Copper's investors?: Copper's investors include Chrysalix, Climactic, Collaborative Fund, Designer Fund, Leap Forward Ventures, MMC Ventures, Necessary Ventures, Norwest Venture Partners and 14 more.
Where is Copper headquartered?: Copper is headquartered in Berkeley, US.