ESS Group
ESS Group is a private environmental consulting firm based in Waltham, Massachusetts, founded in 1997. With 11-50 employees, it provides specialized services in power generation, transmission facilities, and renewable energy infrastructure for energy-sector clients.
- Company typePrivate
- Founded1969
- HeadquartersWaltham, United States
- Headcount1–10
- GTM typeB2B
- OfferingServices
What ESS Group does
ESS Group is a private, for-profit environmental consulting firm headquartered in Waltham, Massachusetts. Founded in 1997, the firm provides specialized services related to power generation, transmission facilities, and renewable energy projects, serving clients across the energy and infrastructure value chain. The firm operates with a lean team of 11-50 employees and is led by Charles Natale, who serves as Founder, President, and CEO.
The firm's business model is grounded in professional consulting services for the power and renewables sector. Its practice areas span environmental assessment, regulatory permitting support, and technical advisory for generation and transmission infrastructure — areas that require deep familiarity with environmental regulations, siting requirements, and energy-sector engineering standards. ESS Group operates without disclosed pricing or revenue data, consistent with a project-based, quote-driven professional services engagement model typical of niche environmental consultancies.
Limited information is publicly available regarding ESS Group's specific customer base, technology platforms, geographic footprint, or financial performance. The firm maintains a web presence at essgroup.com. Notably, the broader dataset aggregated for this analysis contains extensive information about TRC Companies — a separate, much larger consulting and engineering firm (7,000+ employees, founded 1969, Windsor CT) — suggesting possible data overlap or attribution issues that warrant independent verification before drawing conclusions about ESS Group's scale, customers, or strategic positioning.
ESS Group firmographics
Firmographics- Name
- ESS Group
- Legal name
- TRC Companies, Inc.
- Website
- https://essgroup.com
- Company type
- Private
- Founded year
- 1969
- Operating status
- Acquired
- Headcount range
- 1–10 employees
- Short description
- ESS Group is a private environmental consulting firm based in Waltham, Massachusetts, founded in 1997. With 11-50 employees, it provides specialized services in power generation, transmission facilities, and renewable energy infrastructure for energy-sector clients.
- Ownership category
- akta.pro rank
ESS Group industry classification
Industry- Product category
- Environmental Consulting Services
- NAICS
- Environmental Consulting Services (54162), Environmental Consulting Services (541620)
- SIC
- Services-Management Consulting Services (8742), Services-Engineering, Accounting, Research, Management (8700)
- akta.pro primary industry
- Sustainability, ESG & Climate Risk Advisory (BPAHAJAH)
- akta.pro secondary industries
- Sustainability & ESG Consulting (BPAHACAK), Stakeholder Engagement & ESG Governance (Policies, KPIs, incentives) (EUAHAJAJ)
Keywords
Where ESS Group is headquartered
LocationHeadquarters
- HQ city
- Waltham
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
ESS Group business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Professional Consulting Services: TRC generates revenue through professional consulting and engineering services including environmental assessment, permitting, compliance, field services, inspection, program and project management, regulatory compliance, and remediation services.
Go-to-market motion2 records
Distribution channels2 records
Marketing channels7 records
ESS Group product offering
Product offeringCore offering
ESS Group is an environment consulting firm that delivers professional services around power generation, transmission facilities, and renewable energy. Offerings include environmental assessment, permitting and compliance, engineering, field services and inspection, program and project management, regulatory compliance, and remediation, supported by smart grid and modern geospatial capabilities and a proprietary product, Lemur™. The firm serves power & utilities, energy, commercial & industrial, transportation, water, and government markets primarily in the United States.
Product overview
TRC Companies operates as a consulting, engineering, and construction management firm offering a portfolio of professional services. The company's offerings include Lemur™ (a named product) and approximately 16 distinct service lines spanning Advanced Energy, Clean Transportation Consulting, Electrical & Power, Engineering, Environment/Health/Safety & Sustainability, Environmental Assessment/Permitting & Compliance, Field Services & Inspection, Modern Geospatial Solutions, Smart Grid Solutions, Pipeline Solutions, Procurement & Construction, Program & Project Management, Regulatory Compliance, Remediation & Materials Management, and Transportation Consulting Solutions. TRC serves markets including Power & Utilities, Energy, Commercial & Industrial, Transportation, Water, Financial & Professional Services, Construction Solutions, and Government sectors. The company is now a member of WSP.
Differentiator
Problem solved
Functional benefit
Brands
- Lemur™: A product offered by TRC Companies.
Products and services
- Environment Consulting Services
- Power Generation and Transmission Consulting
- Renewable Energy Services
- Smart Grid Solutions
- Modern Geospatial Solutions
- Engineering Services
- Field Services & Inspection
- Program & Project Management
- Regulatory Compliance Services
- Remediation & Materials Management
- Transportation Consulting Solutions
- Procurement & Construction Solutions
- Security & Emergency Management
- Lemur™
Quantifiable outcome
- Helped clients complete 10,000+ projects since 1969
- +2 more outcomes
Companies that use ESS Group
Customer profileNamed customers5 records
Segments8 records
Ideal customer profiles3 records
ESS Group technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
ESS Group partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- WSP GlobalflagshipTRC is now a member of WSP Global. This represents a significant strategic acquisition where TRC becomes part of the larger WSP organization, one of the world's leading professional services firms. The acquisition combines TRC's expertise in consulting, engineering, and construction management with WSP's global platform.
Scale indicators5 records
Recent moves1 record
ESS Group competitors and assessment
Company assessmentBroad incumbents
- Arcadis: Arcadis maintains a global environmental and water consulting business with significant U.S. energy and infrastructure client work, making it a competitor on the same power-sector environmental advisory RFPs ESS pursues.
- AECOM: AECOM is a global E&C firm with a major energy and environmental practice serving utilities, IPPs, and government agencies on transmission, renewables, permitting, and compliance — overlapping substantially with ESS Group's core service set.
- Stantec: Stantec operates a large North American environmental services practice serving power, transmission, water, and government clients — directly comparable to ESS's focus on environmental consulting for energy infrastructure.
- Tetra Tech: Tetra Tech is a leading environmental and engineering consulting firm with deep water, energy, and infrastructure practices; it competes head-to-head with ESS on utility environmental permitting, renewable energy siting, and regulatory compliance work.
- WSP Global: WSP Global is the ultimate parent of ESS Group (via its 2024 acquisition of TRC) and a global professional services leader with extensive power, environment, and transportation consulting practices — the controlling platform and a structural competitive reference point.
- ERM (Environmental Resources Management): ERM is a global pure-play environmental, health, safety, and sustainability consultancy serving energy and infrastructure clients; it competes with ESS on EHS, permitting, and ESG/sustainability advisory engagements for utilities and developers.
Direct peers
- SLR Consulting: SLR Consulting is a mid-sized environmental and advisory firm with strong energy and infrastructure practices serving utilities, developers, and governments — directly comparable in scale and service mix to ESS Group.
- GHD: GHD is a global employee-owned engineering, environmental, and construction services firm with significant U.S. energy and infrastructure practice presence — a similarly sized mid-market peer with comparable environmental consulting offerings.
- TRC Companies: TRC is the most direct peer and former parent of ESS Group; both provide environmental, permitting, and engineering consulting to utilities, energy, and government clients, and since 2024 TRC has itself been a member of WSP Global.
- Haley & Aldrich: Haley & Aldrich is a U.S. environmental and geotechnical consulting firm serving power, energy, and infrastructure clients, making it a closely comparable niche specialist peer to ESS Group.
Market position
Strengths3 records
Weaknesses3 records
Competitive moat2 records
Key risks4 records
Key highlights4 records
Customer concentration
ESS Group social profiles
Digital presenceESS Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
ESS Group leadership team
Management profileNumber of profiles
Profiles1 record
ESS Group funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ESS Group M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about ESS Group
What does ESS Group do?
ESS Group is an environment consulting firm that delivers professional services around power generation, transmission facilities, and renewable energy. Offerings include environmental assessment, permitting and compliance, engineering, field services and inspection, program and project management, regulatory compliance, and remediation, supported by smart grid and modern geospatial capabilities and a proprietary product, Lemur™. The firm serves power & utilities, energy, commercial & industrial, transportation, water, and government markets primarily in the United States.
Is ESS Group a public or private company?
ESS Group is a private company. It is classified as founder individual operated bootstrapped and is currently acquired.
When was ESS Group founded?
ESS Group was founded in 1969. It employs 1 to 10 people.
Where is ESS Group based?
ESS Group is headquartered in Waltham, United States, in the North America region.
How does ESS Group make money?
One revenue line is on record: professional Consulting Services.
Who are ESS Group's main competitors?
Broad incumbents on record are Arcadis, AECOM, Stantec, Tetra Tech, WSP Global and ERM (Environmental Resources Management). Direct peers are SLR Consulting, GHD, TRC Companies and Haley & Aldrich.
Does ESS Group have an API?
No public API is recorded for ESS Group.
What industry is ESS Group in?
ESS Group's product category is Environmental Consulting Services. Its primary akta.pro industry code is BPAHAJAH, Sustainability, ESG & Climate Risk Advisory, with a secondary code of BPAHACAK, Sustainability & ESG Consulting. Its NAICS code is 54162 and its SIC code is 8742.