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Span

679 Bryant Street, San Francisco, California, 94107, United States

Overview

Span began by selling internet-connected electrical panels that give homeowners real-time insight and control over circuits, enabling easier integration of EV chargers, batteries, heat pumps, and rooftop solar. Over 2025 the company expanded its focus from individual residences to utilities, targeting regions facing rapid load growth and ambitious decarbonization mandates, such as California. In partnership with Landis+Gyr, Span launched the SPAN Edge, an at-the-meter device utilities can deploy to avoid costly upgrades to poles, wires, and transformers while still accommodating higher demand. The technology was field-tested in PG&E’s virtual power plant pilot that coordinated 400 Span smart panels and 1,500 Sunrun-managed batteries to relieve feeder constraints. Span continues to sell its $2,550 smart panel for new and existing homes, but sees the larger growth opportunity in utility deployments now moving from pilot to rollout phase. Hiring plans include utility delivery roles and an expanded development team in Bangalore, signaling execution on this broader market strategy. Prior to the current raise, Span had secured more than $200 million in funding from investors such as Wellington Management, Fifth Wall, and Munich Re Ventures.

Total raised
$379M
Funding rounds
5
Latest round
Series C
Latest activity
Feb 2026

Industries

  • Energy
  • Hardware
  • Internet of Things
  • Renewable Energy
  • Software
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Recent funding

  1. Series C

    Feb 2026

    $163M

  2. Series B

    Apr 2023

    $96M

  3. Series B

    Mar 2022

    $90M

  4. Equity

    Jan 2021

    $20M

  5. Series A

    May 2020

    $10M

Team

  • Arch Rao

    Founder & CEO

    LinkedIn
  • Karen Gough

    Vice President of Sales

    LinkedIn
  • Allxie Cleary

    Associate Backend Engineering Manager

    LinkedIn
  • Venkatraghavan S

    Staff Mechanical Engineer and Founding Engineer

    LinkedIn