What Endurant Energy does

Endurant Energy is a US-based distributed energy resources (DER) specialist that designs, builds, operates and maintains on-site energy systems for large commercial, industrial, government, healthcare, education, real estate and utility clients across North America, with residual engineering work in the UK. The company delivers turnkey solutions across six technology platforms — geothermal ground-source heat pumps (including proprietary "energy foundations" integrated into building piles), combined heat and power (CHP), fuel cells (notably Bloom Energy), battery energy storage (BESS), microgrids and solar PV — supported by an in-house geothermal design subsidiary, GEOptimize, acquired in December 2022.

Endurant monetizes through three engagement models: project-based Engineering, Procurement & Construction (EPC) contracts, recurring Operations & Maintenance (O&M) services, and long-tenor (10–20+ year) Energy-as-a-Service (EaaS) arrangements in which third-party financing partners own the on-site assets. Pricing is quote-based and project-specific; EaaS pricing is gated by client credit assessment. The go-to-market is enterprise field sales targeting marquee institutional customers (Con Edison, Hines, Walgreens, Cornell Tech, St. Bernardine Medical Center, Oxford University, Empire State Building, Transamerica Pyramid, One Penn Plaza, Federal Center South, among others), with no consumer or channel intermediaries. End-to-end project execution covers permitting (including specialized FDNY approvals for NYC battery storage), engineering, construction and commissioning, with over 100 years of cumulative cogeneration experience on the leadership team.

The firm is wholly owned by LS Power — a US power and energy infrastructure platform controlling over 13,000 MW of generation and 680 miles of transmission, with more than $10 billion in equity committed to energy infrastructure — following LS Power's May 2021 acquisition of predecessor GI Energy. Headquartered in Chicago with additional offices in New York, Winnipeg (GEOptimize hub), Rancho Cucamonga, and Santa Clara, Endurant employs approximately 50 people and operates alongside LS Power affiliates including EVgo, REV Renewables and CPower.

Name

Endurant Energy

Legal name

Endurant Energy

Website

https://endurant.com

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

Endurant Energy is a US-based distributed energy resources EPC and O&M specialist that designs, builds and operates geothermal, CHP, fuel cell, microgrid, energy storage and solar PV systems for commercial, industrial, government, healthcare, education and real estate clients across North America.

Ownership category

akta.pro rank

Product category

Distributed Energy Infrastructure Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Utilities (22), Electric Power Generation (22111), Solar Electric Power Generation (221114), Steam and Air-Conditioning Supply (221330)

SIC

Cogeneration Services & Small Power Producers (4991), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ)

akta.pro secondary industries

BESS O&M and Lifecycle Services (Warranty, Spares, Monitoring) (EUAEAEAM), Repowering, Augmentation & Retrofit Integration (Capacity Expansion) (EUAEAEAL), Commissioning, Testing & Energization Services (Pre-Commissioning, Grid Code Compliance) (EUAMAFAK), Electrical Balance-of-Plant EPC (MV Collection, Cabling, Earthing, Lighting) (EUAEADAB)

Keywords

• Distributed energy resources
• Geothermal heat pumps
• Combined heat and power
• Microgrid solutions
• Energy infrastructure EPC

Headquarters

HQ city

Chicago

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering, Procurement & Construction (EPC): Endurant provides end-to-end turnkey EPC services for distributed energy projects. They design, permit, construct, and commission CHP, fuel cells, geothermal, linear generators, and energy storage systems. Revenue is project-based and typically one-time per project.
2. Operations & Maintenance (O&M): Ongoing maintenance, troubleshooting, parts procurement, repairs, remote monitoring, warranty coordination, performance reporting, and system upgrades for installed distributed energy assets. Delivered through Service Solutions team with over 35 years of O&M experience across cogeneration, geothermal, and energy storage.
3. Energy-as-a-Service (EaaS): Third-party financing partners own and operate energy assets on the client's site. Endurant builds and operates the assets, with 100% of upfront capital covered by the financing partner. Endured to eliminate client financial, technical, and operational risk. Long-term contracts of 10-20+ years. 100% of energy savings benefits flow to the customer.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Endurant Energy designs, builds, operates, and maintains distributed energy resource (DER) projects — including microgrids, geothermal energy foundations and GSHP systems, fuel cells (notably with Bloom Energy), combined heat and power (CHP), battery energy storage (BESS), and solar PV — for commercial, industrial, government, healthcare, education, real estate, and utility clients across North America and the UK. The company delivers projects through turnkey Engineering, Procurement & Construction (EPC) contracts, ongoing Operations & Maintenance (O&M) services, and Energy-as-a-Service (EaaS) agreements where third-party financiers own and operate the assets on the customer's site.

Product overview

Endurant Energy offers a distributed energy resource (DER) solutions platform consisting of three core services (EPC, Operations & Maintenance, and Energy-as-a-Service) and six technology products (Microgrid, Energy Foundations, Fuel Cell, Combined Heat and Power, Energy Storage, Geothermal, and Solar). The company also acquired GEOptimize to provide in-house geothermal design capabilities. Services range from design-build through long-term operations, serving sectors including commercial, industrial, education, healthcare, government, utilities, and real estate across North America.

Differentiator

Problem solved

Functional benefit

Products and services

• Engineering, Procurement & Construction (EPC) Turnkey EPC service covering conceptual and detailed design, permitting, construction, grid integration, and commissioning of distributed energy projects (CHP, fuel cell, geothermal, energy storage, microgrid, solar) for enterprise and institutional clients.
• Operations & Maintenance (O&M) Ongoing service agreement covering OEM preventative maintenance, parts procurement, repairs, remote monitoring, warranty coordination, performance reporting, and system upgrades for installed distributed energy assets across cogeneration, geothermal, and energy storage.
• Energy-as-a-Service (EaaS) Long-term (10-20+ year) arrangement in which third-party financing partners own and operate on-site energy assets; Endurant Energy provides full design, build, and ongoing operations, eliminating client capital, technical, and operational risk.
• Microgrid Self-sufficient energy systems using intelligent software controllers to match real-time supply and demand for buildings, campuses, or districts; can operate grid-tied or islanded during outages.
• Energy Foundations Geothermal loops integrated into building foundations (and tunnel/basement walls) as concrete is poured, leveraging the thermal mass of foundation elements to deliver heating and cooling without extra construction time or footprint.
• Fuel Cell Electro-chemical fuel cell systems delivering reliable lower-carbon power, runnable on natural gas or renewable natural gas (RNG), engineered and installed in partnership with Bloom Energy.
• Combined Heat and Power (CHP) Gas-fired cogeneration systems that recapture waste heat for hot water or steam, achieving up to 80% efficiency; Endurant's portfolio spans 50 MW of installed CHP capacity with deep expertise across reciprocating engines and combustion turbines.
• Energy Storage (BESS) Battery energy storage systems (BESS) providing load balancing, peak demand reduction, renewable intermittency management, and grid resilience; portfolio totals approximately 100 MW / 400 MWh across deployed projects.
• Geothermal (GSHP) Ground source heat pump (GSHP) systems that extract warmth from the ground in winter and discharge building heat back into the ground in summer; portfolio spans 10,000 tons of installed geothermal GSX capacity.
• Solar PV Solar energy generation using photovoltaic (PV) panels, typically integrated with battery storage to manage intermittency and reduce peak demand within broader DER deployments.
• GEOptimize (In-house Geothermal Design Service) In-house geothermal design service providing GSHP feasibility and design, forensic evaluation of existing systems, and geothermal design training, with iterative building energy modeling and computer simulations for projects ranging from large-scale districts to individual buildings.

Quantifiable outcome

• Saves $1.6M per year on energy costs compared to standard utility rates (17K Muskrat)
• +9 more outcomes

Named customers18 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered flagship, core, key and minor.

• SkanskaflagshipStrategic or Co-development Partner · 1 March 2026Endurant Energy was selected by The New York Climate Exchange to work alongside Skanska to design the geothermal energy foundation system at the New York Climate Exchange on Governors Island. Skanska is the general contractor for the $500M+ development. The system integrates geothermal loops embedded within the building's foundations, supplemented by additional geothermal boreholes. This is a landmark sustainable development project in New York City.
• GEOptimizecoreStrategic or Co-development Partner · 1 December 2022In December 2022, Endurant announced the acquisition of long-established ground source heat pump (GSHP) design specialists GEOptimize. Bringing GEOptimize's skillset in-house streamlines Endurant's geothermal offering, adding value to clients by increasing technical and design capabilities. GEOptimize specializes in high-performance GSHP system design with iterative building energy modeling and computer simulations.
• HinescoreStrategic or Co-development PartnerEndurant Energy provided EPC services for the all-electric hybrid heat pump system at Hines' new commercial building extension at 555 Greenwich St. in Manhattan. This is New York City's first all-electric commercial office building, designed to exceed NYC's 2030 climate targets. Hines owns the property (a joint venture with Trinity Church NYC and Norway's sovereign wealth fund).
• Bloom EnergycoreTechnology or IntegrationEndurant Energy is a Bloom Energy fuel cell engineering and installation partner. They performed full turnkey installation, permitting, and general contracting services for a 7.5 MW Bloom Energy fuel cell facility at 18 Sneden Ave. in Staten Island, NY — the largest fuel cell installation in New York City.
• Bloom Energy / Exelon (Parkville Microgrid)coreTechnology or IntegrationThe Parkville Microgrid contains an 800 kW Bloom Energy fuel cell as part of an Exelon-Bloom joint venture. Endurant Energy was the primary EPC contractor for the project, which was the first microgrid project in Connecticut and was funded by a $2.1M state grant.
• Virtual Net Metering / RECskeyStrategic or Co-development PartnerEndurant Energy partnered with Virtual Net Metering and RECs to secure funding for the Parkville Microgrid project in Hartford, CT, including a $2.1M grant from the State of Connecticut.
• Certain Energy and ShellminorStrategic or Co-development PartnerBloom Energy, in partnership with Certain Energy and Shell, deployed over 40 MW of fuel cells throughout the Northeast. Endurant was engaged for installation and permitting expertise in New York City for the 7.5 MW Staten Island project.
• WSP Flack + KurtzminorImplementation/ SI/ Consulting PartnerEndurant worked alongside consultant engineers WSP Flack + Kurtz at Federal Center South in Seattle, assessing and implementing the most effective way to marry the geothermal system to other innovative heating and cooling systems such as chilled beams and phase-change materials.

Scale indicators10 records

Recent moves5 records

Expansion highlights5 records

Emerging players

• Bloom Energy: Bloom Energy manufactures and deploys solid-oxide fuel cell systems and is Endurant's primary fuel cell technology and installation partner (e.g., 7.5 MW Staten Island project). Both companies target commercial/industrial behind-the-meter generation and participate in the same customer deals, with Bloom supplying technology and Endurant delivering EPC.
• BoxPower: BoxPower provides containerized solar+storage microgrids for commercial, agricultural, and remote-site customers — an emerging player with partial overlap to Endurant's microgrid and BESS portfolio, particularly for cannabis/agriculture and grid-independent use cases.

Direct peers

• Enchanted Rock: Enchanted Rock provides natural-gas-powered microgrid and resiliency-as-a-service solutions for commercial, healthcare, and industrial customers — directly comparable to Endurant's microgrid and fuel-cell-enabled resilience offerings for similar customer profiles.
• PowerSecure: PowerSecure (a Southern Company subsidiary) designs, builds, and maintains distributed energy solutions including microgrids, fuel cells, and solar+storage for commercial and industrial customers — overlapping directly with Endurant's microgrid, fuel cell, and BESS EPC + O&M offering.
• Scale Microgrid Solutions: Scale Microgrid develops, finances, owns, and operates distributed energy microgrid projects for commercial, institutional, and public-sector customers — competing directly with Endurant's microgrid and EaaS engagements in the Northeast and California markets.
• Ameresco: Ameresco is a publicly traded renewable energy and energy efficiency EPC and services firm serving commercial, industrial, government, healthcare, and education customers — directly comparable to Endurant across DER, CHP, microgrid, and energy storage project delivery in North America.
• MasTec Clean Energy & Infrastructure: MasTec Clean Energy & Infrastructure builds utility-scale solar, wind, storage, and pipeline infrastructure across North America — overlapping with Endurant's BESS, microgrid, and distributed generation EPC work for utilities, developers, and large energy users.

Broad incumbents

• Veolia North America: Veolia operates district energy and geothermal heating/cooling networks across North America and provides related energy services — comparable to Endurant's geothermal, energy foundation, and district-scale heating/cooling offerings for institutional and municipal customers.
• ENGIE North America: ENGIE is a global energy services and infrastructure owner-operator with a large North American distributed energy, district energy, and CHP/geothermal footprint (via legacy Cofely). It competes broadly with Endurant across DER, CHP, microgrids, and energy services for institutional and commercial customers.
• Siemens Energy: Siemens Energy supplies gas turbines, generators, and grid technologies and has a substantial distributed generation / industrial power services business — comparable to Endurant's CHP and gas-engine cogeneration portfolio and competing for similar commercial/industrial EPC opportunities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

• Xx.com/endurantenergy
• LinkedInlinkedin.com/company/endurant

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 Endurant Energy