Sargent & Lundy

What Sargent & Lundy does

Sargent & Lundy is a privately held, full-service engineering and design firm founded in 1891 and headquartered in Chicago. The company provides consulting, engineering, design, analysis, and project services for the power industry — covering nuclear power, conventional generation, renewable energy, transmission and distribution grids, data centers, oil and gas, environmental, and decarbonization — to utilities, government agencies, energy developers, hyperscalers, and industrial clients. Notable technical work includes functional and physical design of the nuclear island for NuScale Power's Small Modular Reactor plants (active since 2019 and extended to a Romania deployment), engineering-scale testing for ION Clean Energy's solvent carbon-capture system under DOE-funded Project Enterprise, and support for Mantel Capture's molten borate carbon-capture technology targeting 98% CO2 capture with a 97%+ reduction in capture energy requirements. Projects also span transmission infrastructure (e.g., the 125-mile, 500-kV Ten West Link interstate line), battery storage feasibility (San Francisco BART 2-MW system), wind farm modernization (Summit Wind Farm), nuclear medical isotope production facilities (SHINE Medical Isotopes), and national security consulting and training for the U.S. Department of Energy.

The firm operates across 11 service lines on a project-based professional services model, delivering work through long-term direct enterprise engagements rather than through channel partners. Go-to-market is enterprise field sales targeting utilities, large developers, and government agencies; key customer relationships include the U.S. Department of Energy, NuScale Power (with Fluor on site-specific SMR designs), ION Clean Energy, SHINE Medical Isotopes, San Francisco BART, and TerraSpark (a 2026 consortium engagement for a 1.6 GW coal-fired carbon-capture project in West Virginia). No public pricing is disclosed; engagements are negotiated on a project-by-project basis. The firm has expanded its workforce by 60% while maintaining low attrition, achieved a billion-dollar valuation with 52% revenue growth since 2023, and has continuously appeared on Engineering News-Record's Top 500 Design Firms since 1965, with current rankings of #1 in Nuclear Plants, #2 in Fossil Fuel, and #3 in the Power category.

Name

Sargent & Lundy

Legal name

Sargent & Lundy

Website

https://sargentlundy.com

Company type

Private

Founded year

1891

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Sargent & Lundy is a Chicago-based, privately held engineering and design firm founded in 1891 serving utilities, government agencies, energy developers, hyperscalers, and industrial clients with full-scope consulting and design across nuclear, conventional, renewable, grid, data center, and decarbonization projects.

Ownership category

akta.pro rank

Product category

Power Engineering Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Electric Power Transmission, Control, and Distribution (22112)

SIC

Electric Services (4911), Electric, Gas & Sanitary Services (4900), Oil & Gas Field Services, Nec (1389)

akta.pro primary industry

Resilience & Backup Power Solutions (Critical Facilities, Islanding) (EUAMAJAK)

akta.pro secondary industries

Major Component Service & Overhauls (Gearboxes, Blades, Generators, Inverters, Turbines) (EUAMAGAF), Power Distribution & Switchgear (UPS, PDUs, Busway) (HDABAKAA), Specialty Power Systems MRO (Generators, Compressors, Pumps, Welders) (TLAKAHAJ)

Keywords

• Power engineering services
• Nuclear plant design
• Grid infrastructure engineering
• Carbon capture engineering
• Energy consulting services

Headquarters

HQ city

Chicago

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Design Services: Providing comprehensive engineering, design, and analysis services for power industry projects across nuclear, conventional, renewable, grid, and decarbonization sectors. Revenue from project-based consulting engagements with major utilities, developers, and government clients.
2. Project Services: Project management, construction management, procurement, and related services helping clients achieve quality project outcomes on time and within budget
3. Government Services: Engineering services supporting the Department of Energy and national security consulting and training engagements in the U.S. and abroad

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Sargent & Lundy provides engineering, design, analysis, consulting, and project management services for the power industry and adjacent sectors. The firm delivers full-lifecycle support across nuclear, conventional, renewable, grid, decarbonization, data center, oil and gas, environmental, and government service practices through project-based consulting engagements with major utilities, developers, and government clients.

Product overview

Sargent & Lundy is an engineering and design firm specializing in the power industry since 1891, with services organized across 11 core practice areas: Nuclear Power, Data Centers, Grid, Conventional Power, Renewable Energy, Environmental, Oil & Gas, Decarbonization, Consulting & Planning, Government Services, and Project Services. The firm operates on a project-based services model, delivering consulting, engineering, design, analysis, and project services through named project engagements including NuScale Small Modular Reactor design, carbon capture projects, transmission lines, battery storage feasibility studies, and wind farm modernization. The company also provides national security consulting and training through DOE partnerships.

Differentiator

Problem solved

Functional benefit

Products and services

• Nuclear Power Services

Quantifiable outcome

• Nearly 500 permanent jobs expected at full buildout for TerraSpark Energy Campus project
• +3 more outcomes

Named customers5 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

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• TerraSparkcoreStrategic or Co-development Partner · 5 June 2026TerraSpark partnered with Sargent & Lundy as part of a consortium to develop the TerraSpark Energy Campus, a 1.6 GW coal-fired power project with carbon capture in West Virginia. Sargent & Lundy provides engineering and design support as part of the consortium including Babcock & Wilcox and Advanced Resources International.
• Mantel CapturecoreTechnology or IntegrationTerraSpark partnered with Mantel for carbon capture technology on the coal-fired power project. Mantel's molten borate carbon capture technology is designed to capture up to 98% of CO2 emissions while reducing capture energy requirements by over 97% compared with conventional approaches.
• Kupono Government ServicescoreStrategic or Co-development PartnerSargent & Lundy partnered with Kupono Government Services at the Department of Energy's National Training Center to develop and deliver critical training for the department's employees and contractors.
• NuScale PowercoreStrategic or Co-development PartnerSargent & Lundy has performed functional and physical design of the nuclear island for SMR plants using NuScale Power Modules since 2019. Support has extended to site-specific designs including a project in Romania.
• FluorcoreStrategic or Co-development PartnerSargent & Lundy's support with NuScale has extended to projects with Fluor on site-specific designs for SMR deployments.
• ION Clean EnergycoreStrategic or Co-development PartnerSargent & Lundy provided engineering, procurement, and construction services for engineering-scale testing of a first-of-its-kind carbon capture system demonstrating ION Clean Energy's solvent technology effectiveness in removing post-combustion CO2 emissions as part of a DOE-funded pilot project (Project Enterprise).
• Department of Energy (DOE)coreStrategic or Co-development PartnerSargent & Lundy supports the DOE with engineering services and national security consulting and training in the U.S. and abroad. Key projects include the National Training Center and multiple energy infrastructure initiatives.
• Armenian GovernmentminorStrategic or Co-development PartnerU.S. experts from Sargent & Lundy, in cooperation with Armenian officials, completed a preliminary feasibility study to assess replacing the Armenian Nuclear Power Plant with American small modular reactor technologies, identifying four US SMR technologies as suitable options.
• Kazakhstan GovernmentminorStrategic or Co-development PartnerSargent & Lundy participates in U.S. Department of State's FIRST program initiatives to support SMR deployment in Kazakhstan, including a simulator in Almaty and a feasibility study for potential sites.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Black & Veatch: Privately-held global engineering, procurement, and construction firm with deep practices in power generation, transmission and distribution, and decarbonization—directly competing with Sargent & Lundy across utility-scale power engineering and energy transition projects.
• Burns & McDonnell: 100% employee-owned engineering and construction firm with strong power, transmission, and renewables practices, frequently listed alongside Sargent & Lundy in ENR rankings for utility and energy infrastructure design.
• Worley: Global energy, chemicals, and resources engineering firm headquartered in Australia with extensive power generation, transmission, and energy transition design practices that overlap with Sargent & Lundy's renewables and grid work.
• AtkinsRéalis: Canadian engineering services and nuclear specialist (formerly SNC-Lavalin) with a leading position in CANDU reactor services and significant nuclear new-build and SMR design capabilities, directly comparable to Sargent & Lundy's nuclear island design work.

Broad incumbents

• Bechtel: One of the largest U.S. EPC firms with a long-standing nuclear, fossil, and grid practice; competes with Sargent & Lundy on large utility EPC and government energy projects, but operates a broader portfolio beyond pure design.
• Jacobs Solutions: Public global professional services firm with Critical Mission Solutions and PA Consulting-adjacent energy and infrastructure consulting, including nuclear, grid, and decarbonization advisory that overlaps with Sargent & Lundy's service lines.
• Fluor Corporation: Public EPC major that Sargent & Lundy partners with on NuScale SMR site-specific designs; competes broadly in nuclear, grid, and energy infrastructure project execution and engineering.
• KBR: Public government services and sustainable technology solutions firm with power, hydrogen, and federal energy engineering practices—overlaps with Sargent & Lundy's DOE and decarbonization engagements.
• Tetra Tech: Public consulting and engineering firm with energy, environmental, and water practices that overlaps with Sargent & Lundy's environmental, grid, and renewable energy services for utility and government clients.

Emerging players

• POWER Engineering Services: Employee-owned U.S. engineering firm focused on power generation (nuclear, fossil, renewables) and grid services; a smaller but direct specialist comparable to Sargent & Lundy on utility-scale power engineering design.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sargent-&-lundy
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Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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

M&A

Investments1 record

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

Frequently asked questions about Sargent & Lundy