Last updated 2026-07-20
- Raised $9.2M Series A led by F2 Venture Capital, Feb 2025
- Raised Seed round led by Swift Ventures, Mar 2024
Total raised
$9.2M
Last: Seed 2025-03
Stage
Seed
Founded
2023
Headcount
10
HQ
Tel Aviv-Yafo, Israel
Sector
Energy Tech
About
257 is a venture-backed enterprise software company dedicated to using data and AI to accelerate the adoption of residential energy products. The company's platform builds detailed digital energy twins for every U.S. home using hundreds of public and proprietary data sources and advanced machine learning techniques. This enables energy providers to optimize customer engagement and improve efficiency in marketing and sales efforts. 257 offers three core products: 257 Insights (AI-powered analytics), 257 Audiences (machine learning-driven propensity scoring), and 257 Engage (customizable lead capture and onboarding tools).
Funding history · 2 rounds · $9.2M total
2025-02
A Round
$9.2M
★ F2 Venture Capital
2024-03
Seed
Undisclosed
★ Swift Ventures
Q&A
- What is 257's primary business?
- 257 is a residential energy data platform that creates digital energy twins for homes in the United States. It integrates data sources and uses AI to provide detailed energy profiles for utilities, solar companies, HVAC providers, and retail electric firms.
- When was 257 founded?
- 257 was founded in September 2023.
- What is the total amount of funding 257 has raised to date?
- 257 has raised a total of $9,200,000 USD.
- When was 257's most recent funding round and who were the lead investors?
- In March 2025, 257 completed a Seed funding round with F2 Venture Capital as a lead investor.
- Which investors participated in 257's Seed round in April 2024?
- Swift Ventures was a lead investor in 257's Seed funding round in April 2024.
- Who are the co-founders of 257?
- The co-founders of 257 include Scott Rosenberg (Co-founder & CEO), Tal Chalozin (Co-founder & CTO), Jeff Hammerbacher, Otto Von, and Joel Jewitt.
- What technologies does 257 utilize in its platform?
- 257 utilizes Artificial Intelligence and Machine Learning in its platform.
Team · 3
Scott Rosenberg
Founder · Co-founder & CEO
Tal Chalozin
Founder · Co-founder & CTO
Sectors & technology
Primary sector
Energy Tech
Sub-sectors
Energy TechEnergy Consumption & EfficiencyClimate TechEnergy TransitionEco-Efficient Energy Usage
Technologies
Artificial IntelligenceMachine Learning
Target customers
Energy, Utilities & Waste ManagementUtilitiesElectricityRenewable Energy SystemsReal Estate & ConstructionManagement
Business model
B2CB2B2C
Tags
climate-techproptechsolar-panelsenergy-efficiencyproperty-managementenergytechelectric-utilitiesenergy-usagedata-analytics
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)
External links
| Website | 257.co |
|---|---|
| linkedin.com/company/94168824/ |
Identifiers & details
| Founded | 2023 |
|---|---|
| Employees (exact) | 10 |
Radar intelligence
Patents
| EPO | 12 |
|---|
Publications (Crossref)
| Works | 10 |
|---|
Web history (Wayback)
| Domain | 257.co |
|---|
Certificate / subdomain footprint
| Subdomains | 3 |
|---|
Israeli Companies Registrar (רשם החברות / ICA)
| Registrar # (ח.פ.) | 516873700 |
|---|---|
| Status | פעילה |
| Corp type | ישראלית חברה פרטית |
| Incorporated | 2023-09-21 |
| Purpose | לעסוק בכל עיסוק חוקי |
| Liability | מוגבלת |
| In violation (unfiled) | no |
| Last annual report | 2026 |
| Active charges / liens | 0 |
| Registry events | 2 — annual_report (2) |
| Registered address | דרך בגין 132 תל אביב - יפו |
Recent registry events
| Date | Event |
|---|---|
| 2026-02-18 | דו~ח שנתי-שינוי בהוראות בתקנון |
| 2026-02-18 | דו~ח שנתי-הוספת בעל תפקיד |