Walden Environmental Engineering
Walden Environmental Engineering is a privately held NY-based environmental engineering and EHS consulting firm serving industrial, commercial, and municipal clients across the New York/Connecticut region through project-based professional services spanning air, water, brownfields, remediation, and sustainability.
- Company typePrivate
- Founded1995
- HeadquartersOyster Bay, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Walden Environmental Engineering does
Walden Environmental Engineering is a privately held, New York–based environmental engineering and consulting firm founded in 1995, headquartered in Oyster Bay and operating across a regional New York/Connecticut service area. The firm delivers multidisciplinary environmental, health, and safety (EHS) services through an integrated portfolio spanning air quality and emissions permitting, NYCDEP Right-to-Know and EPCRA Tier II reporting, brownfields assessment and redevelopment, EHS consulting and outsourcing, engineering design and construction management, site investigations and remediation, green energy and sustainability advisory (including battery energy storage systems), lab and solid waste consulting, tanks and fuel management, and water quality services across drinking water, sanitary wastewater, stormwater, and industrial wastewater applications. Underlying field capabilities include drone-based surveying and remote sensing plus information management systems for compliance documentation. The firm serves two principal customer segments — industrial and commercial facilities requiring environmental compliance, permitting, and EHS support, and municipal governments needing compliance reporting, water quality management, and infrastructure consulting. Revenue is generated through project-based professional services engagements under custom quoting; pricing is not publicly disclosed. Go-to-market relies on direct enterprise field sales supported by content marketing (educational blog posts and guides on topics such as PFAS reporting and OSHA programs) and organic social presence on LinkedIn, Facebook, and X. Walden employs between 11 and 50 staff described as a team of engineers, geologists, and hydrogeologists, and the firm is independently operated with no disclosed parent company, institutional investors, or acquisition activity in the source material.
Walden Environmental Engineering firmographics
Firmographics- Name
- Walden Environmental Engineering
- Legal name
- Walden Environmental Engineering
- Website
- https://www.walden-assoc.com
- Company type
- Private
- Founded year
- 1995
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Walden Environmental Engineering is a privately held NY-based environmental engineering and EHS consulting firm serving industrial, commercial, and municipal clients across the New York/Connecticut region through project-based professional services spanning air, water, brownfields, remediation, and sustainability.
- Ownership category
- akta.pro rank
Walden Environmental Engineering industry classification
Industry- Product category
- Environmental Engineering Services
- NAICS
- Environmental Consulting Services (54162), Engineering Services (541330)
- SIC
- Services-Engineering Services (8711)
- akta.pro primary industry
- Environmental Compliance & Permitting (BPAHAJAA)
- akta.pro secondary industries
- Air Quality & Emissions Management (BPAHAJAI), Water, Wastewater & Stormwater Compliance (BPAHAJAJ), Geotechnical, Hydrogeological & Seismic Engineering (Slope Stability, Ground Support, Dewatering) (IMAKAOAN)
Keywords
Where Walden Environmental Engineering is headquartered
LocationHeadquarters
- HQ city
- Oyster Bay
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Walden Environmental Engineering business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales
Revenue model
- Environmental Consulting Services: Professional consulting services including environmental compliance advisory, EHS consulting, engineering design, regulatory program compliance, site investigations, remediation services, and related technical advisory work. Revenue is generated through project-based consulting engagements with government agencies, industrial facilities, and commercial clients.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels5 records
Walden Environmental Engineering product offering
Product offeringCore offering
Walden Environmental Engineering is a New York-based environmental consulting firm that delivers multidisciplinary environmental, health, and safety (EHS), engineering, and compliance services to industrial, commercial, and municipal clients. Its offering spans air quality and emissions permitting, brownfields assessment and redevelopment, EHS consulting and outsourcing, engineering design and construction management, environmental site investigation and remediation, green energy and battery energy storage system (BESS) advisory, lab consulting, solid waste consulting, tanks and fuel management, drone-based surveying and remote sensing, information management systems, and water quality services (drinking water, sanitary wastewater, stormwater, industrial wastewater). Revenue is generated through project-based professional consulting engagements.
Product overview
Walden Environmental Engineering is an environmental consulting firm offering a comprehensive suite of advisory and technical services. Their portfolio consists of distinct service lines organized under groupings: Air Quality and Emissions Permitting; Brownfields; Strategic Business Services (including grant writing and asset management); EHS Consulting (with sub-services for compliance, project management, training, audits, and industrial hygiene); Engineering (design, cost estimating, and construction management); Environmental Consulting (regulatory compliance and site remediation); Green Energy and Sustainability (including BESS); Lab Consulting; Solid Waste Consulting; Tanks and Fuel Management; Technology and Innovation (encompassing Drones and Remote Sensing plus Information Management Systems); and Water Quality services (covering drinking water, wastewater, and stormwater). The firm also provides a publicly accessible Incident Rate Calculator tool. The overall offering functions as a unified environmental engineering consultancy rather than a software platform.
Differentiator
Problem solved
Functional benefit
Products and services
- Air Quality and Air Emissions Permitting
- Annual NYCDEP Right-to-Know and EPCRA Tier II Reporting
- Brownfields Assessment and Redevelopment
- Strategic Business Services
- EHS Consulting
- Engineering Design and Construction Management
- Environmental Consulting
- Green Energy and Sustainability Advisory
- BESS (Battery Energy Storage Systems) Consulting
- Lab Consulting
- Solid Waste Consulting
- Tanks and Fuel Management
- Drones and Remote Sensing
- Information Management Systems
- Water Quality Services
Companies that use Walden Environmental Engineering
Customer profileSegments2 records
Ideal customer profiles2 records
Walden Environmental Engineering technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
Walden Environmental Engineering partnerships and signals
Strategic signalScale indicators1 record
Recent moves4 records
Expansion highlights4 records
Walden Environmental Engineering competitors and assessment
Company assessmentDirect peers
- Roux Associates: Long-standing New York-area environmental consulting firm offering site investigation, remediation, and regulatory compliance services directly comparable to Walden's core EHS and environmental consulting practice.
- Haley & Aldrich: National environmental and geotechnical consulting firm with strong Northeast presence, providing services including site investigation, regulatory compliance, and engineering that closely mirror Walden's multidisciplinary offering.
- Vertex Environmental Engineers: Mid-sized environmental and civil engineering consultancy serving NY/NJ industrial and municipal clients with remediation, compliance, and site assessment services comparable to Walden's.
- PW Grosser Consulting: Long Island/New York-based environmental engineering and hydrogeology consulting firm serving municipal and private clients with similar regulatory, water, and site investigation capabilities.
Regional players
- Langan: Large New York-based engineering and environmental services firm with integrated geotechnical, site/civil, and environmental consulting, overlapping significantly with Walden's core practice in the same regional market.
Broad incumbents
- TRC Companies: Major U.S. environmental, engineering, and consulting firm offering air permitting, EHS compliance, water, and remediation services that overlap with nearly all of Walden's service lines at greater scale.
- Tetra Tech: Global leader in water, environment, and sustainable infrastructure consulting with deep federal/state regulatory expertise directly comparable to Walden's EHS, water quality, and permitting work.
- Arcadis: Global design, engineering, and environmental consulting firm with a sizable U.S. practice covering remediation, water, and EHS advisory that competes with Walden for industrial and municipal engagements.
- AECOM: Global infrastructure consulting firm with a large environment practice offering permitting, remediation, and compliance services that overlap with Walden's portfolio across the Northeast.
- GHD: Global engineering, architecture, and environmental consulting firm with U.S. offices providing water, EHS, and remediation services that overlap with Walden's regional offerings.
Market position
Strengths5 records
Weaknesses6 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Walden Environmental Engineering social profiles
Digital presenceWalden Environmental Engineering financial estimates
Financial estimateRevenue estimate
Valuation estimate
Walden Environmental Engineering leadership team
Management profileNumber of profiles
Walden Environmental Engineering funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Walden Environmental Engineering 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 Walden Environmental Engineering
What does Walden Environmental Engineering do?
Walden Environmental Engineering is a New York-based environmental consulting firm that delivers multidisciplinary environmental, health, and safety (EHS), engineering, and compliance services to industrial, commercial, and municipal clients. Its offering spans air quality and emissions permitting, brownfields assessment and redevelopment, EHS consulting and outsourcing, engineering design and construction management, environmental site investigation and remediation, green energy and battery energy storage system (BESS) advisory, lab consulting, solid waste consulting, tanks and fuel management, drone-based surveying and remote sensing, information management systems, and water quality services (drinking water, sanitary wastewater, stormwater, industrial wastewater). Revenue is generated through project-based professional consulting engagements.
Is Walden Environmental Engineering a public or private company?
Walden Environmental Engineering is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Walden Environmental Engineering founded?
Walden Environmental Engineering was founded in 1995. It employs 11 to 50 people.
Where is Walden Environmental Engineering based?
Walden Environmental Engineering is headquartered in Oyster Bay, United States, in the North America region.
How does Walden Environmental Engineering make money?
One revenue line is on record: environmental Consulting Services.
Who are Walden Environmental Engineering's main competitors?
Direct peers on record are Roux Associates, Haley & Aldrich, Vertex Environmental Engineers and PW Grosser Consulting. Langan is listed as a regional player. Broad incumbents are TRC Companies, Tetra Tech, Arcadis, AECOM and GHD.
Does Walden Environmental Engineering have an API?
No public API is recorded for Walden Environmental Engineering.
What industry is Walden Environmental Engineering in?
Walden Environmental Engineering's product category is Environmental Engineering Services. Its primary akta.pro industry code is BPAHAJAA, Environmental Compliance & Permitting, with a secondary code of BPAHAJAI, Air Quality & Emissions Management. Its NAICS code is 54162 and its SIC code is 8711.