Queens Carbon
Decarbonizing Cement with Zero Green Premium
San Francisco, United States · Founded 2022 · $44.5M raised
- Headquarters
- San Francisco, California
- Employees
- 1–10
- Founded
- 2022
- Business Model
- B2B
- Website
- queenscarbon.com
- Total Funding
- $44.5M
- Last Round
- $10.0M SeedApr 2025
- Rounds
- 3
About
Queens Carbon develops the Q-System platform to produce carbon-neutral cementitious materials using a patented low-temperature hydrothermal process. Its Q-SCM supplementary cementitious material can replace up to 50% of traditional cement in concrete mixes, cutting industrial CO2 emissions without a green cost premium. The company was founded by Rutgers University researchers and is based in Cedar Grove, New Jersey.
Summary
Queens Carbon is an Energy company based in San Francisco, United States, founded in 2022. It has raised $44.5M in total across 3 rounds, most recently a $10.0M Seed round in Apr 2025. Investors include Plug and Play, Clean Ventures and ARPA-E.
Tech & App Stack
1 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding History
Sign up to view the funding chart
Create a free account with 25 free credits every month, no card needed, to unlock funding history, valuations, and tech stacks.
Apr 2025
Sign up to see all 3 rounds
Grant through Seed — per-round amounts, valuations, and who invested in each round.
Investors
Similar Companies
Carbon transformation company that converts CO2 into essential products like sustainable aviation...
Turnkey portfolio wide energy efficiency retrofits for the Fortune 500
Digital energy company using an app and smart technology to sell renewable electricity and optimi...
Home battery and energy company that provides distributed power storage to reinforce the electric...
Scale-up established in 2024
EV charging network and station provider for home, commercial, and fleet use across North America.
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/queens-carbon"><img src="https://indexed.vc/api/badge/company/queens-carbon" alt="Queens Carbon on Indexed.vc" width="260" height="76" /></a>