What Sunstone Environmental Solutions does

Sunstone Environmental Solutions, LLC is a privately held environmental consulting firm founded in 2021 and headquartered in Reno, Nevada (9855 Double R Blvd, Suite 200). The firm was spun off by four co-founders (Eric Dougherty, Sierra Dierksen, Lindsay Dunlap, and Joseph Martini) who previously served as the in-house environmental department of one of Nevada's largest landholders. Sunstone provides a portfolio of professional services to the mining sector and adjacent resource/industrial clients in the Western United States, including local, state, and federal permit acquisition, NEPA process navigation, baseline collection oversight, Plan of Operations preparation, civil engineering (site layouts, grading, drainage, stormwater), GIS-based spatial analysis and data management, environmental due diligence, compliance inspection and sampling, project management, ESG strategic programs, and, as of June 2026, air quality permitting and compliance services.

The underlying technology stack is centered on GIS platforms for spatial analysis, geodatabase management, and stakeholder engagement, combined with discipline-specific permitting and compliance workflows rather than a unified software product. Service delivery is performed by a team that includes licensed Professional Engineers, a Certified Environmental Manager, a PhD in Mining Engineering, MSHA/OSHA-certified field staff, and senior personnel with prior experience at NDEP, Elko Mining Group, and Farr West Engineering; the firm also integrates external subconsultants on a project basis.

The business model is fee-for-service professional consulting, with quote-based, project-priced engagements tailored to scope and complexity. Mining permitting timelines of 7-10 years create inherently long contract durations, and active 2026 engagements include Roxmore Resources' Converse Gold Project and Borealis Mining's Sandman Gold Project (latter carrying an estimated ~$203M after-tax NPV and 105% IRR). Go-to-market is sales-led and relationship-driven, anchored in regulatory relationships with NDEP, BLM, and local authorities, and amplified by 2025 Metals & Mining Review recognition and 2026 Marquis Who's Who recognition for President Eric Dougherty.

Name

Sunstone Environmental Solutions

Legal name

Sunstone Environmental Solutions, LLC

Website

https://sunstonenv.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Support Activities for Metal Mining (213114), Environmental Consulting Services (54162), Support Activities for Mining (2131), Environmental Consulting Services (541620)

SIC

Services-Commercial Physical & Biological Research (8731), Services-Testing Laboratories (8734)

akta.pro primary industry

Environmental, Permitting & Closure Services (EIA, Compliance Monitoring, Reclamation Execution) (IMAKAKAJ)

akta.pro secondary industries

Environmental & Permitting Services for Mine Projects (EIA/ESIA, Approvals, Compliance) (IMAKAOAM), Permitting, Siting & Environmental Impact (EIA/NEPA) Advisory (EUAMANAB), Phase II ESA & Subsurface Investigation (Soil/Groundwater Sampling) (EUAHAEAB)

Keywords

• Environmental consulting services
• Mining permitting services
• NEPA compliance consulting
• Environmental compliance monitoring
• GIS environmental mapping

Headquarters

HQ city

Reno

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental Consulting Services: Professional consulting fees for environmental management, permitting, compliance monitoring, GIS services, and civil engineering services for mining and industrial clients. Services are project-based and tailored to client needs, typically involving long-term engagements spanning multiple years for mine permitting processes.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Sunstone Environmental Solutions is an environmental management consulting firm that delivers permitting (local, state, federal including NDEP and BLM), NEPA process navigation, baseline collection oversight, Plan of Operations development, compliance inspection and sampling, civil engineering, GIS support, environmental due diligence, and project management services to mining and industrial clients in the Western United States. The firm operates as an outsourced environmental department for small and medium-sized mining companies and recently launched a dedicated Air Quality Department.

Product overview

Sunstone Environmental Solutions is a client-focused environmental management consulting firm based in Northern Nevada that provides a comprehensive suite of services to the mining industry. Rather than a single unified software product, the company offers an integrated portfolio of professional consulting services spanning permitting (federal, state, and local), environmental compliance, GIS and data management, civil engineering, project management, NEPA process navigation, and stakeholder relations. These services are delivered through a team of environmental consultants who serve as an extension of clients' internal teams. The company recently launched a dedicated Air Quality Department to expand its in-house capabilities for air permitting and compliance services.

Differentiator

Problem solved

Functional benefit

Products and services

• Strategic Planning and Budgeting Services

Quantifiable outcome

• 7-10 years average mine permitting timeline in the US - Sunstone guides clients through this complex process
• +1 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Roxmore Resources Inc.coreStrategic or Co-development Partner · 13 April 2026Sunstone Environmental Solutions has been engaged by Roxmore Resources Inc. to provide permitting work at the Converse Gold Project in Nevada, USA. The engagement supports Roxmore's 30,000-meter infill and extensional drilling campaign designed to support an upcoming Preliminary Economic Assessment and potential advancement to a Pre-feasibility Study.
• Borealis Mining CompanycoreStrategic or Co-development Partner · 13 April 2026Sunstone Environmental Solutions has been engaged by Borealis Mining Company along with M3 Engineering, RESPEC, and Hunton Andrews Kurth LLP to advance the Sandman Gold Project in Humboldt County, Nevada toward a construction decision. Sunstone provides permitting and technical work programs following the completion of a preliminary economic assessment demonstrating robust economics with $203 million NPV and 105% IRR.
• M3 EngineeringminorStrategic or Co-development Partner · 13 April 2026Partner firm engaged alongside Sunstone Environmental Solutions for the Sandman Gold Project engineering and permitting work.
• RESPECminorStrategic or Co-development Partner · 13 April 2026Partner firm engaged alongside Sunstone Environmental Solutions for the Sandman Gold Project engineering and technical work.
• Hunton Andrews Kurth LLPminorStrategic or Co-development Partner · 13 April 2026Legal partner engaged alongside Sunstone Environmental Solutions for the Sandman Gold Project permitting and advancement toward construction decision.
• Specialized Subconsultants NetworkcoreImplementation/ SI/ Consulting PartnerSunstone integrates a variety of skilled subconsultants into project teams to address specific environmental challenges effectively. This collaborative approach enhances project efficiency and fosters close working relationships with other industry experts and regulatory bodies.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Stantec: Global engineering and environmental consulting firm with a substantial mining environmental services practice covering permitting, NEPA, baseline studies, and reclamation across North America — directly comparable full-lifecycle mining environmental offering to Sunstone but at vastly greater scale.
• Tetra Tech: Large environmental and engineering consultancy with a long-standing mining environmental practice spanning permitting, water resources, and compliance — competes for the same mining-environmental work as Sunstone, particularly with NEPA and water quality expertise.
• WSP (formerly Golder): Global professional services firm with deep mining-environmental heritage through the Golder acquisition, providing permitting, NEPA, and site assessment services to mining clients — a scaled, multi-jurisdiction competitor to Sunstone's mining-focused niche.

Direct peers

• NewFields: Environmental, engineering, and construction services firm focused on mining and natural resources — provides permitting, NEPA, baseline studies, and reclamation consulting directly comparable to Sunstone's portfolio.
• SRK Consulting: Mining-focused consulting firm offering environmental, permitting, hydrogeology, and closure services globally — a directly comparable mining-specialist peer to Sunstone, though SRK operates at significantly larger scale.
• Knight Piésold: Mining engineering and environmental consulting firm with strong tailings, permitting, and compliance expertise — comparable to Sunstone in offering integrated mining environmental services from exploration through closure.
• SLR Consulting: Environmental and advisory consultancy with a dedicated mining practice covering permitting, NEPA, compliance, and reclamation — directly comparable service mix and target client base to Sunstone.
• EM Strategies: Nevada-based environmental and permitting consulting firm focused on mining clients in the Western U.S., providing NEPA, permitting, and compliance services — a regionally focused direct competitor to Sunstone with overlapping client base.

Emerging players

• Kleinfelder: Engineering, environmental, and construction services firm with growing mining-sector presence offering permitting, site assessment, and compliance services — a partial-overlap peer expanding into Sunstone's mining niche.
• Trinity Consultants: Environmental consulting firm specializing in air quality, permitting, and compliance — directly relevant to Sunstone's newly launched Air Quality Department and the air permitting work that is now a core service line.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/sunstonenv
• LinkedInlinkedin.com/company/sunstone-environmental-solutions
• Instagraminstagram.com/sunstonenv

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles17 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 Sunstone Environmental Solutions