Claros Technologies Funding, Investors & Competitors

Claros Technologies has raised $140M across 6 funding rounds, most recently a $55M Series B in July 2026.

Last Claros Technologies funding round

$55M

Series B · Jul 2026

Cumulative funding Claros Technologies raised

$140M

across 6 funding rounds

Key investors in Claros Technologies

  • University of Minnesota
  • Capita3
  • American Century Investments
  • F.R. Bigelow Foundation
  • Ecosystem Integrity Fund
  • 3×5 Partners
  • Veralto
  • Groundswell Ventures

Claros Technologies Overview

About Claros Technologies

Claros Technologies is a St. Paul-based advanced materials firm that engineers zero-waste manufacturing processes for coatings, adhesives, and composites used in aerospace, automotive, and construction. Founded in 2018, it produces bio-based resins and flame-retardant polymers through continuous flow chemistry, partnering with suppliers for scalable production without volatile solvents.


Founded

2018

HQ

United StatesSaint Paul, MN

Status

Privately held

Customer focus

B2B

Revenue model

Product sales

Claros Technologies Funding History

Claros Technologies has raised a total of $140M across 6 funding rounds.

Claros Technologies' first fundraising round was a $6M Series A in August 2021. The most recent completed round was a $55M Series B in July 2026.

Claros Technologies funding rounds

Claros Technologies funding rounds
DateStageInvestorsRaisedDeal Summary
Jul 2026Series BTreehouse Family Capital (lead); Veralto; Saint Paul & Minnesota Foundations; Bush Foundation; Nord Asset Management; Daikin America$55MClaros Technologies raised a $55 million Series B financing in July 2026, led by Treehouse Family Capital LLC with participation from Daikin America, Veralto, Bush Foundation, Nord Asset Management, and Saint Paul & Minnesota Foundation, plus existing investors. The financing was structured to include the company’s previously announced convertible note financing and was intended to accelerate global commercialization of ClarosTechUV™ PFAS Destruction System, expand ClarosLabs™, strengthen manufacturing and operations, and meet growing demand from industrial manufacturers, remediation firms, utilities, and government agencies seeking PFAS destruction and analytical solutions. The round positions Claros around commercial scaling in the PFAS destruction market, with management emphasizing deployment of the technology beyond field testing into repeatable installations. Claros is described as a Minneapolis-based company focused on destruction and analytical solutions for PFAS, the class of chemicals commonly referred to as forever chemicals, and it serves industrial, remediation, utility, and public-sector customers. The company previously disclosed a $10 million convertible note in August 2025 that was included in the $55 million headline financing.
Jul 2026Undisclosed stage-$47MClaros Technologies raised $30 million in a seed round co-led by General Catalyst and Red Cell Partners, with participation from Systemiq Capital, Aero X Ventures, Trenches Capital, and other new and existing investors. The round was announced on March 19, 2026 and was described as oversubscribed; the company said the capital would support development of products aimed at making AI infrastructure more efficient, resilient, and sustainable. The company was founded in 2024 and is backed by Red Cell Partners, General Catalyst, VIPC, and others. Claros positions itself as a power management solutions company using hardware and software to improve data center energy performance from chip to grid. Its roots and prior financing history appear focused on data center power rather than PFAS or environmental materials, which reflects a separate company with the same name in prior years. Claros is based in McLean, Virginia and Torrance, California, and operates in the AI infrastructure power-management segment. Public materials describe the business as leveraging innovative hardware and software to improve efficiency, resilience, and sustainability in data centers.
Aug 2025Series ASteve Sefton; American Century Investments; Capita3; F.R. Bigelow Foundation; University of Minnesota$10MClaros Technologies is an advanced materials company developing safe and sustainable products with zero toxic waste, including the ClarosTechUV™ system for 99.99% PFAS destruction in partnership with Daikin America. Founded in 2018 and headquartered in Saint Paul, MN, the company operates in industries such as travel and tourism, space, and transportation. Claros Technologies raised $10 million in a funding round announced on August 13, 2025, to advance its ClarosTechUV PFAS destruction technology and expedite system deployment. Prior Series A rounds included $14.20 million on December 1, 2023, $700K on October 2, 2024, and others in May 2024 and July 2021. Leadership includes CEO Michelle Bellanca and CTO Abdennour Abbas.
Oct 2024Pre-seed-$700K-
May 2024Series BAmerican Century Investments (lead); Ecosystem Integrity Fund (lead); Groundswell Ventures; Open Door Foundation; Capita3; Children's Minnesota; F.R. Bigelow Foundation; University of Minnesota; Kureha America$22MClaros Technologies, a Minneapolis-based startup founded from University of Minnesota research in 2017 or 2018, develops green chemistry and advanced material science solutions to address PFAS pollution, offering the first closed-loop system that permanently destroys all types of PFAS (long, short, and ultrashort chain) using UV-photochemical technology with 99.99% destruction efficiency, alongside ISO/IEC 17025:2017 accredited analytical laboratory services, bio-based functional materials for antiviral, antibacterial, anti-odor, UVA/UVB protection, and high-value metals recovery. On May 28, 2024, Claros Technologies raised $22 million in an oversubscribed Series B funding round co-led by Ecosystem Integrity Fund and American Century Investments, with participation from Capita3, Children's Minnesota, Kureha America Inc., Open Door Foundation, F.R. Bigelow Foundation, other corporate and individual investors, and incumbents Groundswell Ventures and the University of Minnesota, bringing total funding to $27.5 million since its 2021 round. The proceeds will scale research, development, market penetration, laboratory expansion, and commercialization of its PFAS destruction tech, which breaks carbon-fluorine bonds into harmless byproducts at low cost and energy use, positioning Claros as a leader in the growing demand for sustainable PFAS remediation amid environmental regulations and industry needs. CEO Michelle Bellanca, a former 3M executive with 20 years experience, emphasized the technology's role in sustainability, client success, and tackling PFAS pollution critical to industrial clients, with third-party validation and potential as the lowest-cost solution.
Aug 2021Series A3×5 Partners (lead)$6MClaros Technologies closed a $5 million Series A funding round on August 31, 2021, led by 3x5 Partners. The company develops advanced materials for PFAS remediation in large-scale water treatment, capturing and detoxifying fluorocarbons to address regulatory cleanup needs. 3x5 Partners, a Portland-based VC firm focused on healthcare and climate solutions, participated as the lead investor.

Who has invested in Claros Technologies?

17 investors have backed Claros Technologies across its funding rounds, including University of Minnesota, Capita3, American Century Investments, F.R. Bigelow Foundation, Ecosystem Integrity Fund and 3×5 Partners.

Lead investors include Treehouse Family Capital, American Century Investments, Ecosystem Integrity Fund and 3×5 Partners.


Claros Technologies Investors

Investors in Claros Technologies by funding rounds participated
InvestorHQRoundsRoleFirst check
American Century InvestmentsUnited StatesKansas City, MO2LeadMay 2024
Capita3United StatesMinneapolis, MN2ParticipantMay 2024
F.R. Bigelow FoundationUnited StatesSaint Paul, MN2ParticipantMay 2024
University of MinnesotaUnited StatesMinneapolis, MN2ParticipantMay 2024
VeraltoUnited StatesBoston, MA1ParticipantJul 2026
Steve Sefton--1ParticipantAug 2025
Treehouse Family CapitalUnited StatesMinneapolis, MN1LeadJul 2026
3×5 PartnersUnited StatesUnited States1LeadAug 2021
Groundswell VenturesUnited StatesDenver, CO1ParticipantMay 2024
Saint Paul & Minnesota FoundationsUnited StatesSaint Paul, MN1ParticipantJul 2026
Open Door FoundationIndiaBangalore1ParticipantMay 2024
Bush FoundationUnited StatesSaint Paul, MN1ParticipantJul 2026
Children's MinnesotaUnited StatesMinneapolis, MN1ParticipantMay 2024

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Claros Technologies Competitors

Claros Technologies competitors include listed companies like Hydrograph Clean Power, First Solar and Nextracker, and private ones like Nanotech Energy, Phoenix Tailings and Fortera.

Public and private companies comparable to Claros Technologies
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Hydrograph Clean PowerCanadaCanadaPublicly listed$43K($8M)$1.4B-
Nanotech EnergyUnited StatesLos Angeles, CAPrivate--$550M-
Phoenix TailingsUnited StatesBoston, MAPrivate--$360M-
ForteraUnited StatesSan Jose, CAPrivate--$355M-
First SolarUnited StatesUnited StatesPublicly listed$5.2B$2.1B$22B4.0x
NextrackerUnited StatesUnited StatesPublicly listed$3.6B$747M$13B2.9x

Claros Technologies Public Comps

Claros Technologies is still privately-owned, but its public comps include Air Liquide, Merck KGaA, Disco, Qnity Electronics, First Solar, JX Advanced Metals, Grace Fabric, Pidilite, HEC Group and Ganfeng Lithium.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Air Liquide$31B$8.6B4.5x4.4x16.4x14.3x
Merck KGaA$24B$5.3B3.1x3.1x14.3x10.7x
Disco$2.8B$1.3B11.9x10.7x26.2x22.8x
Qnity Electronics$4.8B$1.4B5.9x5.2x19.9x17.1x
First Solar$5.2B$2.1B3.8x4.0x9.7x7.7x
JX Advanced Metals$5.7B$1.1B3.9x3.6x19.6x13.3x
Grace Fabric$175M$54M112.7x52.3x367.0x112.8x
Pidilite$1.5B$390M10.6x9.7x41.2x40.5x

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Common questions about Claros Technologies

When was Claros Technologies founded?Claros Technologies was founded in 2018.
Where is Claros Technologies headquartered?Claros Technologies is headquartered in Saint Paul, MN, United States.
Is Claros Technologies publicly listed?No, Claros Technologies is a private, VC-backed company.
How much funding has Claros Technologies raised?Claros Technologies has raised $140M across 6 funding rounds.
What was Claros Technologies' last funding round?Claros Technologies' last funding round was a $55M Series B in July 2026, led by Treehouse Family Capital.
Who are Claros Technologies' investors?Claros Technologies' investors include American Century Investments, Capita3, F.R. Bigelow Foundation, University of Minnesota, Veralto, Steve Sefton, Treehouse Family Capital, 3×5 Partners, Groundswell Ventures, Saint Paul & Minnesota Foundations and 7 others.
Which companies are comparable to Claros Technologies?Companies comparable to Claros Technologies include Hydrograph Clean Power, Nanotech Energy, Phoenix Tailings, Fortera, First Solar and Nextracker.

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