# Prometheus Materials

> Prometheus Materials is a Longmont, Colorado, climate-materials company commercializing ProZERO, a microalgae-derived supplemental cement blend that can replace part of Portland cement in ordinary concrete production. Born from a DARPA-backed University of Colorado Boulder research project, the company now sells nationally to ready-mix producers, contractors, architects and building owners, with a licensing model for manufacturers and field deployments ranging from sidewalks and pavers to data-center ductbanks.

- **Founded:** 2021
- **Headquarters:** Longmont, United States
- **Founders:** Loren Burnett (President and CEO), Wil V. Srubar III (Technology Advisor), Sherri Cook (Advisor), Mija Hubler (Co-founder), Jeff Cameron (Co-founder)
- **Team size:** 14 employees in provided data; LinkedIn lists 11-50 employees and displayed 14 employees when researched.
- **Products:** ProZERO supplemental blend, ProZERO manufactured-product blends, Licensed material solutions, Bio-Block, Mix design and deployment support
- **Notable:** Spun out of DARPA-backed research at the University of Colorado Boulder in 2021., Raised an $8 million Series A led by Sofinnova Partners with Microsoft Climate Innovation Fund, SOM, GAF and Autodesk Foundation participating., Built the Bio-Block Spiral with SOM and the International Masonry Institute for the 2023 Chicago Architecture Biennial using conventional masonry techniques.

## Products & services

- **ProZERO supplemental blend** — A microalgae- and biomineral-based powder designed to replace a chosen portion of cementitious material one-for-one in ready-mix concrete, commonly at project-specific replacement levels of 10% to 40%.
- **ProZERO manufactured-product blends** — Formulations for precast products including concrete masonry units, pavers and flowable fill, with technical guidance for local mixes and specifications.
- **Licensed material solutions** — Licensing of ProZERO formulations and production know-how to existing cement, concrete and manufactured-product producers.
- **Bio-Block** — An algae-based concrete masonry unit demonstrated at the 2023 Chicago Architecture Biennial and built with conventional masonry techniques.
- **Mix design and deployment support** — Project-specific dosage guidance, technical support, delivery planning and coordination with customer or third-party labs; customers remain responsible for local testing and approvals.

## Achievements

- Spun out of DARPA-backed research at the University of Colorado Boulder in 2021.
- Raised an $8 million Series A led by Sofinnova Partners with Microsoft Climate Innovation Fund, SOM, GAF and Autodesk Foundation participating.
- Built the Bio-Block Spiral with SOM and the International Masonry Institute for the 2023 Chicago Architecture Biennial using conventional masonry techniques.
- Won the materials category in Fast Company's 2024 World Changing Ideas Awards with SOM.
- Selected as a collaborator in a $10 million Department of Energy effort to develop carbon-removal measurement and verification methods for cement and concrete.
- Placed ProZERO in a roughly 2,500-cubic-yard data-center ductbank application using about 63 tons of product at 8% replacement.
- Completed a 300-plus-cubic-yard Maryland data-center placement at 20% ProZERO replacement, with an estimated 45% lower global-warming potential than a conventional all-Portland-cement mix.
- Entered a long-term strategic supply partnership with Green Stream Algae in 2026.

## Latest updates

- **2024-07** — The company reported $6.25 million in debt financing through an SEC Form D filing.
- **2024-11** — Prometheus joined a $10 million DOE-backed collaboration on measuring and validating carbon removal in cement and concrete.
- **2025-09** — Installation of ProZERO began at the New York Climate Exchange campus on Governors Island after earlier exhibition and pilot work.
- **2026-03** — The company published supplier materials showing ProZERO ready-mix performance and current field projects, including data-center slabs and ductbanks.
- **2026-05** — Prometheus announced a ten-year strategic supply partnership with Green Stream Algae covering North and South America, with extension options.
- **2026-06** — A Maryland hyperscale data-center project placed more than 300 cubic yards with 20% ProZERO replacement, the company's largest above-ground deployment disclosed to date.

## Links

- Website: https://prometheusmaterials.com/
- LinkedIn: https://www.linkedin.com/company/prometheus-materials/
- Twitter/X: https://twitter.com/prometheusmats
- Facebook: https://www.facebook.com/prometheusmaterials

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Profile page: https://yespress.io/prometheus-materials
Published by YesPress — https://yespress.io
Last updated: 2026-08-22