What E-Flux does

E-Flux is a private, founder-led environmental measurement company headquartered in Fort Collins, Colorado, that spun out of Colorado State University's Center for Contaminant Hydrology in 2013 to commercialize passive gas sampling technology. The company sells two primary product lines: Fossil Fuel Traps, sorbent-based passive samplers that capture CO2 emitted from contaminated soil and groundwater to quantify Natural Source Zone Depletion (NSZD) of Light Non-Aqueous Phase Liquids (LNAPL), using a patented dual-sorbent layer design and ASTM D6866-18 radiocarbon (14C) analysis to differentiate fossil fuel-derived CO2 from modern atmospheric CO2; and Clear-Well, a non-destructive UV-based port system (US Patent 10,677,729 B2) with proprietary image-processing software that produces depth-dependent soil saturation profiles at 10-20 micron resolution for repeatable LNAPL distribution surveys.

E-Flux serves environmental consulting firms, petroleum industry operators (refineries, gas stations, rail yards), government environmental agencies, and industrial facility owners who need precise, defensible measurement data to support remediation timing, strategy, and regulatory closure decisions. The company's technology has been recognized in guidance documents from the American Petroleum Institute (API), Interstate Technology & Regulatory Council (ITRC), CL:AIRE (UK), CRC Care (Australia), and NAVFAC, and has been deployed at hundreds of petroleum-impacted sites across North America with growing use in Europe and Australia.

The business model is sales-led and consultative, with revenue generated from hardware sales (Fossil Fuel Traps) and professional services (Clear-Well installation and surveying) priced through custom quote requests, typically under multi-year contracts. The company is founder-owned, with no disclosed institutional investment, operates with 1-10 employees, and is supported by a partnership with Colorado State University Ventures and R&D housed at the CSU Research and Innovation Center.

Name

E-Flux

Legal name

E-Flux

Website

https://soilgasflux.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

E-Flux is a Fort Collins, Colorado-based environmental measurement company that sells passive gas sampling (Fossil Fuel Traps) and UV-based imaging (Clear-Well) systems to quantify natural biodegradation and LNAPL distributions at petroleum-contaminated sites for environmental consultants, petroleum operators, and government agencies.

Ownership category

akta.pro rank

Product category

Environmental Site Characterization Equipment

NAICS

Geophysical Surveying and Mapping Services (54136)

SIC

Laboratory Analytical Instruments (3826)

akta.pro primary industry

Wastewater & Industrial Effluent Monitoring (NPDES/Permit Compliance) (EUAHACAD)

akta.pro secondary industry

Leak Detection, Emissions & LDAR Testing (OGI, methane, fugitive emissions) (EUAEAHAL)

Keywords

• Soil gas flux monitoring
• LNAPL characterization
• Natural source zone depletion
• Passive gas sampling
• Environmental site remediation

Headquarters

HQ city

Fort Collins

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Marketing or Sales

Revenue model

1. Fossil Fuel Trap Products and Services: E-Flux sells passive CO2 sampling traps and provides associated analysis services including carbon analysis, travel blank correction, and radiocarbon analysis. Customers deploy the traps for 5-28 days and receive comprehensive reports with LNAPL loss rates.
2. Clear-Well UV Survey Services: E-Flux provides Clear-Well installation and on-demand surveying services using their proprietary UV-based imaging technology. The process includes site plan development, installation by company experts, and precise actionable data delivery.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

E-Flux designs, manufactures, and deploys passive gas sampling tools (Fossil Fuel Traps) and UV-based imaging systems (Clear-Well) used to measure Natural Source Zone Depletion rates and map LNAPL distributions at petroleum-contaminated sites. The company sells the physical samplers and Clear-Well ports and provides the customized analytical services (carbon analysis, radiocarbon analysis, image processing, site reporting) that accompany each deployment.

Differentiator

Problem solved

Functional benefit

Brands

• Fossil Fuel Traps: Sorbent-based passive samplers that measure naturally occurring biodegradation of Light Non-Aqueous Phase Liquids (LNAPL, including petroleum) by capturing the CO₂ emitted from contaminated soil and groundwater. Features patented dual-sorbent layer technology and radiocarbon (¹⁴C) analysis to differentiate fossil fuel-generated CO₂ from modern CO₂ interference.
• Clear-Well

Products and services

• Fossil Fuel Traps Sorbent-based passive sampling traps that capture CO2 emitted from contaminated soil and groundwater to measure naturally occurring biodegradation of Light Non-Aqueous Phase Liquids (LNAPL, including petroleum). Sold to environmental consultants, petroleum site owners, and government agencies for site characterization, NSZD rate quantification, and remediation performance assessment.
• Clear-Well UV Survey System Non-destructive UV-based system for repeat surveys of LNAPL distributions in soils. Uses a transparent borosilicate glass tube port installed in standard PVC casing that can be surveyed on-demand with a portable imaging device. Proprietary software transforms digital images into depth-dependent soil saturation profiles at the pore scale. Sold to environmental consultants, petroleum site owners, and government agencies for repeat, non-invasive high-resolution site characterization (HRSC).

Quantifiable outcome

• NSZD loss rates measured at 700 to 2,800 gallons per acre-year at field sites (Garg et al., 2017)
• +4 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Colorado State University (CSU) VenturescoreStrategic or Co-development Partner · 1 January 2013E-Flux has been a client company of CSU Ventures since January 2013. The Fossil Fuel Traps were invented by Dr. Julio Zimbron's team at CSU's Center for Contaminant Hydrology. E-Flux's offices and labs are housed at CSU's Research and Innovation Center.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Eurofins Environment Testing: Eurofins operates one of the world's largest networks of environmental testing laboratories, with the scale and scientific breadth to offer NSZD-relevant analytical services in competition with E-Flux.
• Pace Analytical Services: Pace Analytical is a large, full-service environmental testing laboratory offering broad analytical chemistry and microbiology services that could substitute for or bundle NSZD measurement as part of site characterization packages.
• Clean Harbors: Clean Harbors is a large environmental services company providing site characterization, remediation, and waste management services to industrial and petroleum clients that overlap with E-Flux's customer segments.
• Tetra Tech: Tetra Tech is a major environmental and engineering consulting firm that delivers site characterization, remediation, and field measurement services globally — overlapping with E-Flux's petroleum and industrial remediation customer base.
• Alpha Analytical: Alpha Analytical is a regional environmental testing laboratory offering routine analytical chemistry services for site investigations, with potential to expand into NSZD and LNAPL characterization services competing with E-Flux.

Direct peers

• Microbial Insights: Microbial Insights provides molecular biology-based testing services (e.g., CENSUS qPCR, PLFA, RNA) to monitor biodegradation processes at petroleum- and chlorinated-solvent-impacted sites, competing for the same environmental consulting and site characterization budgets as E-Flux.
• SiREM: SiREM specializes in passive samplers and molecular biological tools for monitoring natural attenuation and bioremediation performance, including Bio-Trap passive samplers that directly overlap E-Flux's Fossil Fuel Traps in technology and customer use case.
• EOS Remediation: EOS Remediation supplies electron donors and related technologies for anaerobic bioremediation of chlorinated solvents and petroleum hydrocarbons, operating in the same contaminated site characterization and remediation monitoring market as E-Flux.
• REGENESIS: REGENESIS provides in-situ remediation products (including the Bio-Trap sampler line through its SiREM acquisition) and technologies that overlap with E-Flux's NSZD measurement and bioremediation performance monitoring offerings.
• Columbia Technologies: Columbia Technologies delivers high-resolution site characterization for complex contaminated sites, including membrane interface probe and laser-induced fluorescence services — adjacent subsurface imaging methods that compete with E-Flux's Clear-Well technology for site investigation projects.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/about

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about E-Flux