Et Design-build / Et Environmental Corp.

What Et Design-build / Et Environmental Corp. does

ET Design-Build (legal entity ET Environmental Corp.) is a privately held, 100% employee-owned design-build and engineering firm founded in 1993 and headquartered in Atlanta, Georgia. The company delivers integrated design and construction services across four operating divisions: Energy (alternative/renewable energy, CNG/LNG/RNG fueling infrastructure, biogas, midstream oil and gas, power generation, plus emerging solar and hydrogen work); Environmental (transfer stations, recycling and materials recovery facilities, landfill upgrades, air pollution control, wastewater treatment, environmental remediation, and brownfields development); Industrial (food and beverage, manufacturing, transportation, and logistics facilities); and Infrastructure/Self-Perform Group, with Signal Service & Supply added in 2026 as a parts, fabrication, and field-services arm for CNG/RNG infrastructure.

The firm's core technology is integrated in-house design-build delivery — combining registered Professional Engineers, a Chemical Engineering Ph.D., construction management staff, and self-perform construction crews under a single point of contact for projects delivered via Design-Build, EPC, Construction Management at Risk, and General Contracting. A proprietary trademarked tool, FlowForma™, performs Monte Carlo simulation across membrane, deoxygenation, water-wash, and PSA process configurations to evaluate Renewable Natural Gas plant economics and recommend technology selections. ET has logged more than 10 million construction hours across U.S. projects, including 900,000 hours with zero OSHA incidents.

Commercially, ET operates an enterprise field-sales motion, engaging clients directly through division-level project executives across 12 U.S. offices spanning the Sun Belt, Midwest, Northeast, and West Coast, with select Canadian project work. Revenue is generated primarily through project-based professional services (design, engineering, construction management, and general contracting) with no publicly disclosed pricing. A secondary hardware-and-services revenue stream exists through Signal Service & Supply, which distributes CNG/RNG parts and fabricated components nationally. Named enterprise customers include Waste Management, WIN Waste Innovations, Nationwide Insurance (a 19-year CNG program spanning 35+ states and Canada), Chobani, and the Utah Inland Port Authority. The firm became 100% employee-owned via an ESOP in 2016 and crossed $100 million in annual revenue in 2024 on 70% organic growth over two years.

Name

Et Design-build / Et Environmental Corp.

Legal name

ET Environmental Corp.

Website

https://etdesignbuild.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

51–100 employees

Short description

ET Design-Build is an Atlanta-headquartered, employee-owned design-build firm delivering integrated engineering and construction services for environmental, energy, industrial, and infrastructure projects across 12 U.S. offices, with a proprietary Monte Carlo RNG economics tool and a new CNG/RNG parts and field-services division.

Ownership category

akta.pro rank

Product category

Design-Build Engineering and Construction Services

NAICS

Architectural Services (54131)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

akta.pro secondary industry

Building Information Modeling (BIM) & Digital Design Services (BPAHAKAK)

Keywords

• Design-build services
• Environmental engineering
• Industrial construction
• Renewable natural gas
• Waste management facilities

Headquarters

HQ city

Atlanta

HQ country

United States

HQ region

North America

Offices12 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Design-Build Services: ET provides integrated design-build project delivery with single point of contact from inception through completion. Services include FEED studies, facility design, construction management, and commissioning. Primary delivery methods include Design-Build, EPC, CM at Risk, and General Contracting.
2. Signal Service & Supply: Parts, fabrication, and field services for CNG and RNG infrastructure projects. Maintains comprehensive inventory of frequently used parts and offers nationwide support for contractors, fleet operators, utilities, and facility owners.
3. Energy Division Services: Design-build services for oil and gas midstream projects, petrochemical and downstream facilities, CNG/LNG/RNG fueling infrastructure, and alternative energy projects including solar and hydrogen.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

ET Design-Build provides integrated design-build and engineering services from concept through completion for environmental, energy, industrial, and solid waste facilities. The company combines in-house design capabilities with construction management through a single point-of-contact project delivery model. Services span FEED studies, facility design, construction management, commissioning, and post-completion support across four divisions: Energy, Environmental, Industrial, and Infrastructure/Self-Perform Group.

Product overview

ET Design-Build operates as a single-source design-build firm offering integrated engineering and construction services through four divisions: Energy, Environmental, Industrial, and Infrastructure/Self-Perform Group. The company also operates a fourth division, Signal Service & Supply, acquired in 2026, providing parts and fabrication for CNG/RNG infrastructure. A proprietary software tool, FlowForma RNG, provides Monte Carlo simulation analytics for RNG project evaluation. ET delivers projects via Design-Build, General Contracting, Construction Management at Risk, and Agency Construction Management, serving clients in energy, solid waste, recycling, food and beverage, manufacturing, water/wastewater, and infrastructure sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Signal Service & Supply A division of ET Design-Build providing parts, fabrication, and field services for compressed natural gas (CNG) and renewable natural gas (RNG) infrastructure projects. Maintains a comprehensive inventory of frequently used parts and offers nationwide support for contractors, fleet operators, utilities, and facility owners.
• Energy Division Services Design-build services for alternative and renewable energy projects, natural gas fueling and infrastructure, biogas upgrading, power generation, and traditional midstream oil and gas. Includes FEED studies, facility design, construction management, and commissioning for CNG/LNG/RNG fueling infrastructure, solar, and hydrogen projects.
• Environmental Division Services Environmental engineering design and construction including transfer stations, recycling facilities, landfill upgrades, air pollution control, wastewater and process water treatment, organics processing, environmental remediation, and brownfields development.
• Industrial Division Services Design-build services for specialized and complex facilities, processes, and systems serving the Food and Beverage, Manufacturing, Transportation, and Logistics industries. Covers all stages of the supply chain including industrial campuses, processing plants, storage and distribution centers, and support systems such as wastewater, water treatment, and leachate treatment plants.
• Infrastructure Division / Self-Perform Group Services Self-perform construction services plus sales and distribution of parts and truss fabrication for projects nationwide. Heavily supports Energy-related projects with capabilities continually expanding to support all projects nationwide, including fueling facilities, vehicle maintenance facilities, driver dispatch centers, rail offloading, and aviation facilities.
• FlowForma RNG A proprietary Monte Carlo simulation model that evaluates the economics of landfill gas upgrading to Renewable Natural Gas (RNG) plants. Provides technology selection recommendations, process layout suggestions, and high-level financial analysis using statistical economic modeling for RNG project development.

Quantifiable outcome

• Over 99% hydrogen sulfide removal achieved at Ohio landfills desulphurization projects - largest of kind in US
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Eight partnerships are on record, tiered core and minor.

• J.R. Leonard Construction Company (CNG Services Group)coreStrategic or Co-development Partner · 1 January 2026Acquired assets of J.R. Leonard Construction Company's CNG Services Group, establishing Signal Service & Supply division. Founded 2003, expanded into CNG market in 2011. Acquisition enhances ET's technical expertise and field execution capacity.
• GHDcoreStrategic or Co-development PartnerLong-standing partnership on significant food and beverage, distribution, wastewater, and environmental projects including award-winning dual-site landfill desulphurization project. GHD provides diverse expertise and disciplines with opportunity to expand into new markets.
• ArdurraminorStrategic or Co-development PartnerNational footprint alignment makes them invaluable partner for expanding client support across the country. Recent collaboration on municipal solid waste campus in Arizona including administration building, scalehouse, civil sitework, and transfer station.
• Blymyer EngineerscoreStrategic or Co-development PartnerMajor partner in CNG market sector. Blymyer's expertise and reliability instrumental in supporting complex projects and delivering innovative energy solutions for CNG fueling facility projects.
• Merichem TechnologiescoreStrategic or Co-development PartnerCritical partner for WIN Waste Innovations Desulphurization Train projects in Ohio. ET's construction management services complement Merichem's innovative LO-CAT hydrogen sulfide removal equipment technology.
• Cawley ArchitectsminorStrategic or Co-development PartnerEarly-stage partnership with promising potential for future collaboration and mutual growth opportunities.
• Leachate Management Specialists (LMS)coreTechnology or IntegrationPartnership for implementation of WAIV (Wind-Aided Intensified eVaporation) technology at North Temple Landfill project. LMS provides cutting-edge leachate treatment technology using specialized fabric sails. ET provides construction and project management expertise.
• Ninigret ManagementcoreStrategic or Co-development PartnerDeveloper partner for North Temple Landfill remediation project. ET and Ninigret developed rigorous remedial action plan gaining Utah DEQ approval. Broke ground in May 2025 on 770-acre transformation project.

Scale indicators13 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• TRC Companies: TRC is an engineering, consulting, and construction management firm with a strong environmental and energy practice. Comparable mid-size design-build and EPC delivery model with overlap in renewable energy, RNG/biogas, and environmental infrastructure projects.
• Kleinfelder: Kleinfelder provides integrated engineering, architecture, and construction services across environmental, water, and infrastructure markets. Comparable scale to ET and directly overlaps in environmental remediation, water/wastewater treatment, and design-build delivery for industrial clients.
• SCS Engineers: SCS Engineers is a national environmental engineering firm focused on solid waste, landfill gas, and environmental remediation design and construction. Directly comparable to ET's Environmental Division and overlapping CNG/RNG practice, serving similar municipal and enterprise waste clients.
• Brown and Caldwell: Brown and Caldwell is an environmental engineering and construction firm focused on water, wastewater, and remediation. Direct peer in the environmental design-build space, particularly overlapping with ET's water/wastewater treatment and landfill leachate work.

Broad incumbents

• GHD: GHD is a global engineering, architecture, and environmental consulting firm. Direct strategic partner with ET on food and beverage, wastewater, and environmental projects, and competes with ET on environmental and industrial design-build engagements.
• Burns & McDonnell: Burns & McDonnell is a large employee-owned engineering, architecture, and construction firm with deep environmental, energy, and industrial practices. Overlaps with ET on environmental remediation, RNG/CNG infrastructure, and industrial design-build at greater scale and broader geography.
• HDR Inc. HDR is a global employee-owned engineering, architecture, and consulting firm with substantial environmental, water, and infrastructure practices. A larger incumbent competing with ET for environmental, water/wastewater, and industrial facility design-build mandates.
• Stantec: Stantec is a global sustainable design and engineering firm with environmental services, water, and infrastructure practices. Competes with ET on environmental remediation, water/wastewater treatment, and industrial facility design, though at significantly larger scale and broader portfolio.
• WSP Global: WSP is a global professional services firm with environmental, energy, and infrastructure engineering practices. Competes with ET across environmental remediation and industrial facility design at much larger scale, particularly on multi-site enterprise programs.

Emerging players

• Blymyer Engineers: Blymyer Engineers specializes in CNG and natural gas fueling facility engineering. Direct strategic partner with ET on CNG fueling projects and complementary niche specialist in ET's core CNG/RNG infrastructure market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights8 records

Customer concentration

• Xx.com/ETEnvironmental
• YouTubeyoutube.com/channel/UCGEFzAIxBNlqZdiRBxOBfwg
• LinkedInlinkedin.com/company/et-design-build-et-environmental

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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 Et Design-build / Et Environmental Corp.