E3

What E3 does

E3 (operating under the DBA "E3 – We Fix Buildings" and as E3 Entegral Solutions) is a Texas-based design-build contractor headquartered in Highland Village with approximately 70 employees, founded in 2009 with leadership experience in mechanical and energy services dating to the 1980s. The firm delivers turnkey infrastructure upgrades — primarily HVAC design and installation, LED lighting retrofits, building automation systems (BAS), indoor air quality, energy auditing, and ongoing performance management — for Texas public-sector clients. Its core customer base is K-12 school districts (300+ projects disclosed), supplemented by rural hospitals, municipalities, and higher-education institutions; the company reports 400+ public-entity clients and 375+ completed projects, with individual project sizes ranging from $105K to $15.5M.

The company's technology portfolio has expanded beyond traditional mechanical contracting into water and wastewater treatment, including Nanobubble technology and the BiCARBUS platform developed under a research partnership with the University of Houston. E3 also offers Metering-as-a-Service (MaaS), an outcome-based recurring offering for municipal water and wastewater clients. Project economics are supported by the company's ability to secure grants and incentives — it reports $20M+ in grant/incentive dollars accessed for clients — and a $100M+ bonding capacity that enables larger design-build awards.

E3 generates revenue primarily through fixed-price design-build contracts awarded by Texas public entities, with project values ranging from six figures to mid-eight figures and reported average annual client savings of $40K–$760K per project. Distribution is anchored by endorsements from the Texas Association of School Boards (TASB) and the Texas Organization of Rural & Community Hospitals (TORCH), combined with membership in the BuyBoard and TIPS purchasing cooperatives, which streamline procurement for public buyers. A growing share of revenue is shifting toward recurring performance-management services and MaaS subscriptions, signaling a transition from purely transactional design-build to a hybrid model that includes long-tail service and outcome-based revenue.

Name

E3

Legal name

E3

Website

https://e3es.com

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Headquarters

HQ city

Highland Village, Texas

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Design-Build Projects: E3 designs and installs facility upgrade projects including HVAC replacements, LED lighting retrofits, building automation systems, and infrastructure improvements. Revenue is earned through project contracts with public entities. Projects are priced as fixed-scope design-build contracts.
2. Performance Management Services: Ongoing performance management and monitoring services after project completion to ensure facilities operate efficiently and savings are achieved. This represents a recurring revenue component tied to completed projects.
3. Water Treatment Solutions: Municipal water and wastewater treatment solutions including nanobubble technology, BiCARBUS chemical treatment, and metering-as-a-service offerings for Texas cities and counties.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

E3 is a Texas-based design-build contractor that designs, installs, and upgrades facility infrastructure for public entities. Core offerings include high-efficiency HVAC system design and installation, LED lighting retrofits, building automation systems (BAS/DDC), indoor air quality improvements, and specialized municipal water and wastewater solutions. Projects are delivered as turnkey fixed-scope design-build contracts with in-house engineers and contractors, supported by ongoing performance management and measurement & verification with savings guarantees.

Product overview

E3 is a design-build construction and engineering firm operating as a single unified service offering rather than a platform-plus-modules architecture. The company provides holistic facility solutions centered on HVAC system design and installation, LED lighting upgrades, Building Automation Systems (BAS), indoor air quality improvements, energy auditing, and ongoing performance management. These core offerings are delivered as an integrated turnkey service, with in-house engineers and contractors working from design through commissioning. E3 also offers specialized water quality and wastewater solutions including Metering-as-a-Service, Nanobubble Technology, and BiCARBUS water treatment products. The company segments its market by serving K-12 schools (TASB Endorsed), healthcare facilities (TORCH endorsed), municipal water/wastewater systems, and higher education institutions.

Differentiator

Problem solved

Functional benefit

Brands

• TASB Endorsed: A designation for E3's school facility upgrade and energy efficiency services endorsed by the Texas Association of School Boards.
• TORCH

Products and services

• HVAC System Design and Installation
• LED Lighting Upgrades
• Building Automation Systems (BAS)
• Indoor Air Quality Analysis and Improvements
• Energy Auditing

Quantifiable outcome

• Average annual savings range from $40K to $760K per project depending on scope and size
• +6 more outcomes

Named customers28 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered core and supporting.

• Texas Association of School Boards (TASB)coreGTM or Marketing PartnerTASB serves Texas public school districts to improve their core business of educating children. TASB found E3 to be a company they could trust that would serve districts regardless of size, location, wealth or needs. E3 is endorsed by TASB as a provider of facility upgrade, energy efficiency, and conservation projects. This partnership provides E3 with credibility and preferential market access to Texas K-12 school districts.
• Texas Organization of Rural & Community Hospitals (TORCH)coreGTM or Marketing PartnerE3 is an Endorsed Partner of TORCH through TORCH Management Services Incorporated (TMSI). The partnership underscores shared commitment to enhancing healthcare in rural Texas. E3 collaborates with TORCH on projects tailored to meet unique needs of community hospitals, ensuring access to best possible care environments. E3 supports TORCH's educational initiatives and advocacy efforts for rural health policies.
• BuyBoardcoreChannel Partner/ Reseller/ DistributorE3 is a member of BuyBoard cooperative purchasing program, allowing Texas colleges and universities to procure E3's services without the time and expense of a full competitive bid process.
• TIPS (The Interlocal Purchasing System)coreChannel Partner/ Reseller/ DistributorE3 is a member of TIPS cooperative purchasing system, enabling Texas educational institutions to access E3's services through existing contract vehicles without competitive bidding requirements.
• University of HoustonsupportingStrategic or Co-development PartnerBiCARBUS water treatment technology is backed by University of Houston research, providing scientific validation for the technology's effectiveness in water treatment applications.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Honeywell Building Technologies: HVAC, building automation, and energy services arm of Honeywell. Competes with E3 on BAS installations, controls upgrades, and energy performance contracts across healthcare and institutional customers.
• Schneider Electric: Global energy management and automation giant whose EcoStruxure and Energy Solutions business lines compete with E3 on building automation retrofits, LED upgrades, and guaranteed-savings engagements for large public-sector accounts.
• Trane Technologies: Global HVAC manufacturer and services provider whose Trane Energy Services unit competes with E3 on chiller replacements, building automation, and energy performance contracting for schools, hospitals, and municipalities.
• EMCOR Group: Large mechanical and electrical construction services firm with significant public-sector exposure. While broader in scope, EMCOR competes with E3 on large-scale HVAC, electrical, and facility infrastructure projects for institutional clients.

Direct peers

• McKinstry: Design-build mechanical, electrical, and energy services firm serving K-12, higher education, healthcare, and municipal markets across the western U.S. Operates an integrated engineer-plus-contractor model comparable to E3's turnkey delivery.
• Performance Services: Indiana-based design-build contractor specializing in K-12, healthcare, and municipal facility improvements with guaranteed savings. Its vertical focus, public-sector client mix, and guaranteed-savings business model closely mirror E3's go-to-market.
• Willdan Group: Provides energy efficiency, engineering, and infrastructure consulting services to utilities, public agencies, and commercial clients. Competes directly with E3 on municipal and school district energy programs and similar ESPC contracting.
• IES Holdings: National provider of electrical and mechanical design, installation, and service for commercial, industrial, and institutional facilities. Overlaps with E3 on commercial electrical and infrastructure work and competes for similar Texas project bids.
• Ameresco: One of the largest pure-play ESCOs in North America, Ameresco develops and delivers design-build energy efficiency and infrastructure projects for K-12 schools, municipalities, and federal clients. Like E3, it finances and guarantees savings on long-tenor contracts.
• Facility Solutions Group (FSG): National lighting, electrical, and technology services provider serving commercial, industrial, and institutional customers. Competes with E3 on LED retrofit, electrical contracting, and multi-site facility upgrade work for schools and municipalities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/e3es

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

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 E3