Triangle Associates, Inc.
Triangle Associates is a Seattle-based environmental consulting firm, founded in 1979, that provides neutral facilitation, mediation, community engagement, and environmental education services to federal, state, tribal, county, and municipal government clients across the Pacific Northwest through project-based professional services contracts.
- Company typePrivate
- Founded1979
- HeadquartersSeattle, United States
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Triangle Associates, Inc. does
Triangle Associates, Inc. is a privately held, women-owned environmental consulting firm founded in Seattle in 1979 by Alice Shorett, a pioneer in alternative dispute resolution for environmental issues. The firm operates from four offices (Seattle, Portland, Bellingham, Leavenworth) with approximately 50 employees and is led by Co-Presidents Betsy Daniels and Sara Gersten-Rothenberg. Its mission is to foster equitable and informed environmental decision-making, and its work is delivered through two integrated practice areas.
The first practice, Collaborative Decision Making, provides neutral third-party facilitation, mediation, community engagement, conservation planning, tribal engagement, and organizational development services to federal, state, tribal, county, and municipal government clients. Notable engagements include co-lead facilitation for the U.S. Army Corps of Engineers, Bonneville Power Administration, and Bureau of Reclamation on the Columbia River System Operations EIS, EPA Region 10 environmental collaboration, and Title VI environmental justice mediation — a niche in which Triangle is the only firm to have successfully mediated such cases using ADR. The second practice, Environmental Education, designs and delivers K-12 assemblies, classroom workshops, teacher trainings, and sustainability assistance on behalf of government agencies and utilities such as King County, Snohomish County PUD, Seattle City Light, Waste Management, and Republic Services.
Revenue is generated through project-based professional services contracts accessed exclusively through government procurement channels: the federal GSA Schedule (contract #GS10F-0223S), Washington State DES Direct Buy for contracts under $40,000, Oregon COBID MWBE roster (certification #10582), King County SCS, and municipal consulting rosters (Seattle, MRSC). The firm holds WBE certification in Washington and Oregon. Pricing is negotiated per engagement; no public rate cards are published, and revenue is not disclosed. The firm completed one acquisition (Veda Environmental, January 2023) and pursues strategic partnerships (notably with Cramer Fish Sciences on Washington Statewide Fish Passage Prioritization and Puget Sound Energy on the Empowerment Pilot for distributed energy resources). The technology stack is purely human-delivery professional services; there are no software products, APIs, or AI/ML capabilities.
Triangle Associates, Inc. firmographics
Firmographics- Name
- Triangle Associates, Inc.
- Legal name
- Triangle Associates, Inc.
- Website
- https://triangleassociates.com
- Company type
- Private
- Founded year
- 1979
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Triangle Associates is a Seattle-based environmental consulting firm, founded in 1979, that provides neutral facilitation, mediation, community engagement, and environmental education services to federal, state, tribal, county, and municipal government clients across the Pacific Northwest through project-based professional services contracts.
- Ownership category
- akta.pro rank
Triangle Associates, Inc. industry classification
Industry- Product category
- Environmental Consulting Services
- NAICS
- Environmental Consulting Services (54162), Management Consulting Services (54161)
- SIC
- Services-Management Consulting Services (8742), Services-Engineering, Accounting, Research, Management (8700)
- akta.pro primary industry
- Sustainability & ESG Consulting (BPAHACAK)
Keywords
Where Triangle Associates, Inc. is headquartered
LocationHeadquarters
- HQ city
- Seattle
- HQ country
- United States
- HQ region
- North America
Offices4 records
Markets served
Triangle Associates, Inc. business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others
Revenue model
- Facilitation and Mediation Services: Triangle provides neutral third-party facilitation and mediation services to government agencies, tribal entities, and private sector clients for complex environmental decisions. Revenue is earned through project-based professional services contracts, typically procured through government master contracts (GSA, DES, municipal rosters) or direct engagement. Engagements range from short-term facilitation sessions to multi-year facilitation programs for large-scale infrastructure or environmental policy decisions (e.g., Columbia River System Operations EIS facilitation ongoing since 2018).
- Environmental Education Programs: Triangle designs and delivers environmental education programs for schools and communities on behalf of government agencies and utilities (King County, Snohomish County PUD, Seattle City Light, Waste Management, etc.). Programs include school assemblies, classroom workshops, teacher trainings, and sustainability assistance. Revenue is project-based, contracted by agencies as part of their public education mandates or sustainability outreach programs, typically multi-year ongoing engagements.
- Organizational Development and Consulting: Triangle provides organizational assessments, leadership development, strategic planning, and change management services to government agencies and organizations (e.g., Montana State Library, Kitsap Transit). These engagements involve structured assessment, facilitation, workshops, and presentations on open governance, mediation, facilitation, leadership, team development, and decision-making processes.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Government professional services — rates negotiated through procurement vehicles |
Go-to-market motion1 record
Distribution channels5 records
Marketing channels7 records
Triangle Associates, Inc. product offering
Product offeringCore offering
Triangle Associates is a Pacific Northwest environmental consulting firm providing neutral third-party facilitation, mediation, and community engagement services for government, tribal, and private clients facing complex environmental and public-policy decisions. The firm also designs and delivers environmental education programs—including classroom workshops, school assemblies, teacher trainings, and sustainability assistance—to schools, communities, utilities, and public agencies.
Product overview
Triangle Associates is a consulting firm (not a software product company) offering two core service areas: Collaborative Decision Making and Environmental Education. The Collaborative Decision Making practice provides facilitation, mediation, community engagement, organizational development, and strategic planning services. The Environmental Education practice delivers youth education programs, community education, sustainability assistance, and waste reduction technical assistance. The company also produces a podcast called 'Decision Making for a Sustainable Planet'. Services are delivered through professional consulting engagements rather than a software platform.
Differentiator
Problem solved
Functional benefit
Products and services
- Collaborative Decision Making Neutral third-party and project management services for government, private, and non-profit leaders to ensure inclusive participation, clear access to information, and lasting equitable decision-making on natural resource, transportation, land-use, and public policy decisions.
- Environmental Education Education, community outreach, and technical assistance programs that help public and private agencies ensure schools and other community groups have the information they need to make sustainable environmental decisions.
- Facilitation & Mediation Neutral third-party facilitation and mediation for multi-stakeholder environmental and public-policy decisions, including conflict resolution and dispute mediation for contentious issues.
- Community Engagement
Quantifiable outcome
- Over 200 King County schools have demonstrated progress through higher recycling rates, decreased waste, and increased education and awareness through the King County Green Schools Program
- +6 more outcomes
Companies that use Triangle Associates, Inc.
Customer profileNamed customers23 records
Segments4 records
Ideal customer profiles4 records
Triangle Associates, Inc. technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Triangle Associates, Inc. partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- Puget Sound Energy (PSE)coreTriangle Associates is collaborating with PSE on the Empowerment Pilot, an innovative initiative placing highly impacted communities at the forefront of designing Distributed Energy Resource (DER) programs that address energy burdens, expand access to clean energy, and ensure the clean energy transition benefits reach everyone. Triangle facilitates co-design sessions with communities to develop solutions grounded in lived experiences.
- Cramer Fish SciencescoreTriangle was contracted to lead the facilitation and community engagement component of Washington State's unified Statewide Fish Passage Prioritization Strategy, while Cramer Fish Sciences provided the technical expertise and primary authorship of the strategy. Working in partnership, Triangle created conditions for informed dialogue, shared learning, and inclusive decision-making throughout the strategy's development. Triangle designed and coordinated meetings with tribal staff and state agencies, facilitated a Science Panel, organized two hybrid statewide forums in Seattle and Wenatchee, and synthesized stakeholder insights. Cramer was responsible for the technical work and primary authorship.
- Veda EnvironmentalcoreTriangle acquired Veda Environmental, a women-owned small business based in Bellingham, Washington, effective January 1, 2023. This acquisition added a Bellingham office location to Triangle's operations and expanded the firm's environmental consulting capabilities. Veda Environmental continues operations under Triangle's umbrella.
- NelsonNygaardminorTriangle worked with transit experts from NelsonNygaard as part of a team providing alternative transit solutions for King County Metro's Community Connections program. NelsonNygaard provided transit-specific technical expertise while Triangle led facilitation and community engagement activities.
- TDW+CominorTriangle worked with multi-ethnic and multilingual communication experts from TDW+Co as part of a team for King County Metro's Mobility Framework engagement efforts. TDW+Co provided cultural and linguistic communication expertise to ensure inclusive community engagement across diverse populations.
- Diverse City LLCminorTriangle worked with Diverse City LLC alongside internal Metro staff for King County Metro's Mobility Framework development. Diverse City conducted internal and external assessment interviews with Metro staff and community partners to embed social equity in the engagement process.
- ECOSSminorTriangle partnered with ECOSS (environmental community organization) to co-design and execute community engagement activities around south Seattle for King County Metro's Mobility Framework development, with ECOSS contributing culturally relevant community outreach and trust networks.
- Full Circle EnvironmentalminorTriangle partnered with Full Circle Environmental starting in 2006 to implement a comprehensive program addressing runoff from fundraiser car washes for the Cities of Bellevue, Kirkland, and Redmond. Full Circle Environmental provided technical environmental expertise while Triangle managed outreach and education components of the NPDES permit compliance program.
Scale indicators5 records
Recent moves7 records
Expansion highlights5 records
Triangle Associates, Inc. competitors and assessment
Company assessmentBroad incumbents
- ICF International: A large global consulting firm with a substantial environmental and public sector practice, including climate, community engagement, and federal agency work. Competes with Triangle on federal facilitation and environmental justice contracts as a much larger incumbent with prime contractor status and broader capabilities.
- Booz Allen Hamilton: A major federal consulting firm with large civil and environmental agency practices, including community engagement and stakeholder facilitation. Competes with Triangle for federal facilitation and ECCR contracts as a large-scale incumbent with security clearances and prime contractor vehicles.
Others
- Environmental Law Institute: A nonprofit that conducts environmental research, education, and policy convening, including training for judges, planners, and community leaders. Adjacent to Triangle's mission of fostering informed environmental decision-making, particularly through education and outreach.
Direct peers
- RESOLVE: A nonprofit dispute resolution and environmental collaboration firm that provides mediation, facilitation, and policy consensus-building services. Directly comparable to Triangle in serving federal agencies and tribal governments on environmental and natural resource disputes.
- Kearns & West: A national facilitation and collaboration firm focused on helping diverse stakeholders find common ground on complex environmental, natural resource, and public policy issues. Closely comparable to Triangle's Collaborative Decision Making practice in both client base (government, tribes, utilities) and methodology.
- Keystone Policy Center: An independent facilitation and policy organization that convenes diverse stakeholders to address contentious issues including energy, environment, and natural resources. Comparable to Triangle in neutral third-party facilitation of multi-stakeholder environmental and public policy decisions.
- Cascadia Consulting Group: A Pacific Northwest sustainability and environmental consulting firm serving government agencies, utilities, and businesses on waste reduction, recycling, and climate programs. Directly comparable to Triangle's Environmental Education and sustainability assistance practice, with similar King County, Seattle, and Washington State clientele.
- Meridian Institute: A nonprofit that designs and facilitates collaborative processes, mediates multi-stakeholder disputes, and convenes working groups on environment, energy, and natural resource policy. Highly comparable to Triangle's facilitation/mediation practice, especially on large federal and tribal engagements.
- Center for Collaborative Policy (California State University, Sacramento): A university-based mediation and facilitation center serving government agencies and communities on environmental, land use, and water resource disputes. Comparable in methodology (neutral facilitation) and government clientele, though its university affiliation and California focus make it a regional peer to Triangle's Pacific Northwest base.
Regional players
- Anchor QEA: A Pacific Northwest–based environmental science and engineering consulting firm that supports large waterfront, habitat restoration, and Superfund projects. Comparable to Triangle as a regional environmental consultancy in the same geography, though more engineering/technical in orientation than facilitation-focused.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Triangle Associates, Inc. social profiles
Digital presenceTriangle Associates, Inc. compliance and trust
Trust signalCompliance3 records
Triangle Associates, Inc. financial estimates
Financial estimateRevenue estimate
Valuation estimate
Triangle Associates, Inc. leadership team
Management profileNumber of profiles
Profiles6 records
Triangle Associates, Inc. subsidiaries and ownership
Company hierarchySubsidiaries1 record
Triangle Associates, Inc. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Triangle Associates, Inc. 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 Triangle Associates, Inc.
What does Triangle Associates, Inc. do?
Triangle Associates is a Pacific Northwest environmental consulting firm providing neutral third-party facilitation, mediation, and community engagement services for government, tribal, and private clients facing complex environmental and public-policy decisions. The firm also designs and delivers environmental education programs—including classroom workshops, school assemblies, teacher trainings, and sustainability assistance—to schools, communities, utilities, and public agencies.
Is Triangle Associates, Inc. a public or private company?
Triangle Associates, Inc. is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Triangle Associates, Inc. founded?
Triangle Associates, Inc. was founded in 1979. It employs 51 to 100 people.
Where is Triangle Associates, Inc. based?
Triangle Associates, Inc. is headquartered in Seattle, United States, in the North America region.
How does Triangle Associates, Inc. make money?
Three revenue lines are on record. Facilitation and Mediation Services are the primary driver. The others are environmental Education Programs and organizational Development and Consulting.
Who are Triangle Associates, Inc.'s main competitors?
Broad incumbents on record are ICF International and Booz Allen Hamilton. Environmental Law Institute is listed as an others. Direct peers are RESOLVE, Kearns & West, Keystone Policy Center, Cascadia Consulting Group, Meridian Institute and Center for Collaborative Policy (California State University, Sacramento). Anchor QEA is listed as a regional player.
Does Triangle Associates, Inc. have an API?
No public API is recorded for Triangle Associates, Inc..
What industry is Triangle Associates, Inc. in?
Triangle Associates, Inc.'s product category is Environmental Consulting Services. Its primary akta.pro industry code is BPAHACAK, Sustainability & ESG Consulting. Its NAICS code is 54162 and its SIC code is 8742.