
257 is a residential energy data platform. We build digital energy twins for every home in the US, and then enable use of these twins through analytics tools, APIs and marketing tools. Data will have a transformative impact on the electrification and operation of our ever-smarter homes. We equip partners in the solar, HVAC, retail electric, and utility sectors with the data they need to engage homeowners and accelerate electrification. 257 was founded by Scott Rosenberg and Tal Chalozin, successful entrepreneurs with decades of experience in platform businesses, consumer marketing, and large-scale data sets. We are backed by awesome advisors, angels and VCs, and powered by a growing team of data and energy nerds. We’re also hiring. Hit us up!

257 is a residential energy data platform. We build digital energy twins for every home in the US, and then enable use of these twins through analytics tools, APIs and marketing tools. Data will have a transformative impact on the electrification and operation of our ever-smarter homes. We equip partners in the solar, HVAC, retail electric, and utility sectors with the data they need to engage homeowners and accelerate electrification. 257 was founded by Scott Rosenberg and Tal Chalozin, successful entrepreneurs with decades of experience in platform businesses, consumer marketing, and large-scale data sets. We are backed by awesome advisors, angels and VCs, and powered by a growing team of data and energy nerds. We’re also hiring. Hit us up!
What they do: Residential energy data platform building digital twins and AI products to support electrification (solar, heat pumps, EVs) and customer acquisition.
Product highlight: PINK — AI/digital-twin product for targeting U.S. homes.
Founded / HQ: Founded 2023; New York, NY.
Funding: $9.2M seed (announced Mar 18, 2025) led by F2 Venture Capital.
Residential electrification, distributed energy adoption, and customer acquisition for energy-related products and services.
2023
Energy / CleanTech / Data
9200000.00
“Led by a specialized climate/energy VC and backed by a mix of angels and institutional investors.”