Company

Span

Rocket Ship Rating

Rocket Ship Rating: 99 out of 100

SPAN reinvented the 100-year-old electrical panel with smarter controls for smarter savings.

Also known as Span.IO, Inc.

Clean energy & storage
Climate positive
Hardware

Status: Operatingas of 2026-09-18
Business model: B2C
Headquarters: San Francisco, CA, United States
Customers: homeowners
Legal name: Span.IO, Inc.

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Record updated 28 September 2026

About

A smarter electrical panel that unlocks whole-home, room, and appliance energy data designed to lower your energy bill.

Funding snapshot

Total raised: $384MSEC form D sum, as of 2026-09-28Source (opens in a new tab)
Latest round: Round, $163M2026-01-15

Funding rounds

Round, 2026: $163M2026-01-15, SEC form D sold, 15 investors
Round, 2025: $25M2025-09-11, SEC form D sold, 13 investors
Round, 2023: $84M2023-02-17, SEC form D sold, 12 investors
Round, 2022: $68.3M2022-01-04, SEC form D sold, 13 investors
Round, 2020: $30.4M2020-12-11, SEC form D sold, 22 investors
Round, 2020: $10.2M2020-02-10, SEC form D sold, 11 investors
Round, 2018: $3M2018-12-21, SEC form D sold, 12 investors

Products

Other: SPAN App
Hardware: SPAN Drive
Hardware: SPAN Panel