# Consulting firms headquartered in Portland

Tamtam tracks 28 consulting firms headquartered in Portland. This list ranks all of them by number of employees on LinkedIn, led by ieSolutions, INDUSTRY and Woodard & Curran. Their median headcount is 267. Half of them were founded in 2002 or later.

This selection of large consulting firms in Portland shows a concentration of companies in IT services, engineering, and design. ieSolutions, with 1932 employees, offers IT staffing and consulting. Woodard & Curran specializes in water and environmental projects, while David Evans and Associates provides design solutions for transportation and land development. INDUSTRY is a global brand consultancy.

A notable pattern among these firms is their long-standing presence, with many founded between the 1960s and 1980s. Examples include PAE, founded in 1967, and BerryDunn, established in 1974. This indicates a mature professional services sector in the region, with established players alongside newer entrants like Lumovy Technology Solutions, founded in 2021.

🇺🇸 Portland · 28 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [ieSolutions](https://www.tamtam.ai/c/iesolutions) (ie4solutions.com)<br>ieSolutions offers staffing services for IT projects and consulting services for planning, project management, system assessment, system delivery, and methodology implementation aligned with business priorities | IT Services and IT Consulting | 🇺🇸 Portland | 1,932 | 2002 |
| 2 | [INDUSTRY](https://www.tamtam.ai/c/industry) (industry.global)<br>A global brand consultancy specializing in defining white space, creating authentic storytelling, and bringing ideas to life with strategic creativity | Design Services | 🇺🇸 Portland | 1,457 | 2011 |
| 3 | [Woodard & Curran](https://www.tamtam.ai/c/woodard-and-curran) (woodardcurran.com)<br>Integrated firm specializing in water and environmental projects, offering tailored solutions through science, engineering, design-build, operations, and collaborative partnerships with clients | Environmental Services | 🇺🇸 Portland | 1,148 | 1979 |
| 4 | [David Evans and Associates, Inc.](https://www.tamtam.ai/c/david-evans-and-associates-inc) (deainc.com)<br>A leader in progressive design solutions for transportation, land development, energy, and water projects nationwide, with a diverse team of professionals | Civil Engineering | 🇺🇸 Portland | 1,084 | 1976 |
| 5 | [BerryDunn — Assurance, Tax and Consulting](https://www.tamtam.ai/c/berrydunn-assurance-tax-and-consulting) (berrydunn.com)<br>A nationally recognized firm providing assurance, tax, and consulting services to help clients create, grow, and protect value with exceptional service | Accounting | 🇺🇸 Portland | 1,049 | 1974 |
| 6 | [PAE](https://www.tamtam.ai/c/pae-portland) (pae-engineers.com)<br>An engineering firm specializing in mechanical, electrical, and technology system design, with a focus on sustainability, regenerative engineering, and community impact | Architecture and Planning | 🇺🇸 Portland | 783 | 1967 |
| 7 | [Otak](https://www.tamtam.ai/c/otak) (otak.com)<br>A Pacific Northwest-based company focused on urban growth planning, sustainable design, and transportation solutions, prioritizing community, diversity, and innovation | Design Services | 🇺🇸 Portland | 500 | 1981 |
| 8 | [Aldrich](https://www.tamtam.ai/c/aldrich) (aldrichadvisors.com)<br>Providing financial, wealth, tax, and business transition strategies for clients across the West Coast for over 50 years | Professional Services | 🇺🇸 Portland | 452 | 1973 |
| 9 | [Tilson](https://www.tamtam.ai/c/tilson) (tilsontech.com)<br>A multi-specialty telecommunications services firm with over 25 years of experience building and maintaining information infrastructure for various clients nationwide | Telecommunications | 🇺🇸 Portland | 422 | 1996 |
| 10 | [Kittelson & Associates, Inc.](https://www.tamtam.ai/c/kittelson-and-associates-inc) (kittelson.com)<br>Solve complex transportation problems through planning, operations, design, and research to improve communities and everyday lives nationwide. | Civil Engineering | 🇺🇸 Portland | 420 | 1985 |
| 11 | [Mackenzie](https://www.tamtam.ai/c/mackenzie) (mackenzie.inc)<br>Leaders in design, committed to diversity, community, equity, sustainability Strong culture of friendship, resiliency, and creative problem-solving Over 60 years of experience | Professional Services | 🇺🇸 Portland | 368 | 1960 |
| 12 | [Baker Newman Noyes](https://www.tamtam.ai/c/baker-newman-noyes) (bnncpa.com)<br>One of the top 100 accounting and consulting firms, specializing in banking, healthcare, manufacturing, not-for-profit, public sector, and family-owned businesses | Accounting | 🇺🇸 Portland | 321 | 1995 |
| 13 | [Cascade Energy](https://www.tamtam.ai/c/cascade-energy) (cascadeenergy.com)<br>Cascade Energy specializes in industrial energy efficiency solutions, offering program design, carbon tracking, engineering services, software, and training to help clients achieve sustainability goals | Professional Services | 🇺🇸 Portland | 313 | 1993 |
| 14 | [Lumovy Technology Solutions](https://www.tamtam.ai/c/lumovy-technology-solutions) (lumovy.com)<br>A company specializing in Dynamics365 technology experiences, digital transformation, cloud integrations, end-to-end implementation, quality engineering, system updates, and support services | IT Services and IT Consulting | 🇺🇸 Portland | 267 | 2021 |
| 15 | [Systems Engineering](https://www.tamtam.ai/c/systems-engineering) (systemsengineering.com)<br>A 100% employee-owned IT strategy and managed technology services provider, focused on delivering secure technology solutions for clients in various industries | IT Services and IT Consulting | 🇺🇸 Portland | 210 | 1988 |
| 16 | [Alta Planning + Design](https://www.tamtam.ai/c/alta-planning-design) (altago.com)<br>Consulting firm specializing in bicycle, pedestrian, trail, park, greenway, and roadway planning, design, engineering, and outreach programs. | Professional Services | 🇺🇸 Portland | 51 | 1996 |
| 17 | [Stillwater Energy](https://www.tamtam.ai/c/stillwater-energy) (stillwaterenergy.com)<br>A company founded to drive energy savings and a positive impact, focusing on sustainability, collaboration, and fearless innovation in all endeavors | Professional Training and Coaching | 🇺🇸 Portland | 26 | 2016 |
| 18 | [MADO](https://www.tamtam.ai/c/mado-portland) (lookwithmado.com)<br>A women-owned company in Portland delivering innovative research insights, strategic advisory, and foresight methods to inspire transformational innovation for clients | Research Services | 🇺🇸 Portland | 25 | 2018 |
| 19 | [The Good \| Digital Experience Optimization](https://www.tamtam.ai/c/the-good-digital-experience-optimization) (thegood.com)<br>Utilizing user insights, this company helps clients optimize digital platforms through data-driven testing, resulting in significant improvements | IT Services and IT Consulting | 🇺🇸 Portland | 24 | 2009 |
| 20 | [OmniData](https://www.tamtam.ai/c/omnidata) (freschesolutions.com)<br>Specializing in solution architecture, data engineering, and business intelligence, we partner with global companies to create quick solutions for complex data problems | IT Services and IT Consulting | 🇺🇸 Portland | 23 | 2019 |
| 21 | [Golsan Scruggs](https://www.tamtam.ai/c/golsan-scruggs) (golsanscruggs.com)<br>A specialized risk management consultant and corporate insurance brokerage firm offering Enterprise Risk Management services to commercial clients nationwide | Insurance | 🇺🇸 Portland | 23 | 2001 |
| 22 | [Synaptiq](https://www.tamtam.ai/c/synaptiq) (synaptiq.ai)<br>An intelligent product company leveraging AI & ML to help SMBs and enterprises generate insights, build innovative products, and solve challenges for a better world | Business Consulting and Services | 🇺🇸 Portland | 18 | 2015 |
| 23 | [Foglight Solutions](https://www.tamtam.ai/c/foglight-solutions) (foglightsolutions.com)<br>Foglight Solutions helps mid-market businesses achieve exceptional performance through digital transformation, specializing in Salesforce platform solutions and cloud migration services | IT Services and IT Consulting | 🇺🇸 Portland | 9 | 2017 |
| 24 | [Pepper Foster Consulting](https://www.tamtam.ai/c/pepper-foster-consulting) (pepperfoster.com)<br>A strategy and execution consulting firm helping clients in various industries figure things out and achieve impactful results through innovative solutions and great people | Business Consulting and Services | 🇺🇸 Portland | 9 | 2015 |
| 25 | [M28 Global, Inc.](https://www.tamtam.ai/c/m28-global-inc) (m28global.com)<br>Specializing in addressing operational challenges through technology, data analytics, and process optimization with experts in business, technology, digital strategy, and design | Software Development | 🇺🇸 Portland | 7 | 2013 |
| 26 | [Anchor Blue Consulting, LLC](https://www.tamtam.ai/c/anchor-blue-consulting-llc) (anchorbluellc.com)<br>Small energy consulting firm with expertise in energy efficiency, renewable energy, demand response, and evaluation services for utilities, government agencies, and non-profit clients | Business Consulting and Services | 🇺🇸 Portland | 5 | 2016 |
| 27 | [Gordian Knot Strategies](https://www.tamtam.ai/c/gordian-knot-strategies) (gordianknotstrategies.com)<br>A leading consulting firm specializing in strategic problem-solving for harnessing natural climate solutions, carbon markets, climate finance, and impact investing worldwide | Environmental Services | 🇺🇸 Portland | 5 | 2018 |
| 28 | [Chemistry & Drug Discovery Consulting, LLC](https://www.tamtam.ai/c/chemistry-and-drug-discovery-consulting-llc) (chemdisc.com)<br>Specializing in medicinal chemistry & early drug discovery, offering expertise in lead identification, hit-to-lead chemistry, lead optimization, prodrug design, patent assessments | Pharmaceutical Manufacturing | 🇺🇸 Portland | 3 | 2011 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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Source: https://www.tamtam.ai/l/consulting-firms-portland