Company lists · Data refreshed September 2026

Top 25 Advisory consulting firms based in Portland, United States

Name: Advisory consulting firms based in Portland, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 130 companies tracked

RevenueBase identified 130 company matches for advisory consulting firms associated with Portland, United States as of September 2026 and tracks 2,521 professional contacts across them, including 1,557 with verified work emails. Across the United States, New York is the largest hub for this category (1,491 companies); Portland has 130.

This list covers company matches for advisory consulting firms associated with Portland, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 23, 2026 How this list was built

130Companies

2,521Contacts tracked

1,557Verified emails

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The 25 largest advisory consulting firms based in Portland, United States

Ranked by team size

Top 25 of 130 company matches for advisory consulting firms based in Portland, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Berrydunn Assurance, TAX And Consulting	Exact match	Portland, ME, United StatesHQ recorded Sep 23, 2026	501-1,000	987 contacts →
	Exact match “BerryDunn is the brand name under which Berry, Dunn, McNeil & Parker, LLC and BDMP Assurance, LLP, independently owned entities, provide services.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2	Baker Newman Noyes	Exact match	Portland, ME, United StatesHQ recorded Sep 23, 2026	201-500	336 contacts →
	Exact match “Baker Newman Noyes is one of the nation's top 100 accounting and consulting firms with offices in Massachusetts, Maine, and New Hampshire.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	Perkins & CO	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	201-500	197 contacts →
	Exact match “Perkins & Co CPAs help growth-focused organizations and individuals navigate complex tax, audit, and advisory needs with clarity and confidence.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4	Geffen Mesher	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	51-200	160 contacts →
	Exact match “We’re a Portland-based accounting firm with a 90+ year legacy, and we’re continuing to grow and evolve every day.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5	Rvk, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	51-200	139 contacts →
	Exact match “RVK is a national firm with headquarters in Portland, OR and regional offices in Boise, ID; Chicago, IL; and New York, NY.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	Albin Randall & Bennett	Exact match	Portland, ME, United StatesHQ recorded Sep 23, 2026	51-200	90 contacts →
	Exact match “ARB guides organizations in the automotive, construction, manufacturing, and nonprofit sectors; closely held businesses; and family groups to make intelligent, sensible financial…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	Corsource	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	51-200	69 contacts →
	Exact match “CorSource is a technology consulting firm dedicated to turning innovation into a competitive advantage.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8	Percipio Consulting Group	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	11-50	50 contacts →
	Exact match “Growth grounded in Partnership Deeply rooted in the Pacific Northwest, Percipio Group is a Portland-based consulting firm that is sharply focused on a prosperous future for the…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	Purdy Powers & Company	Exact match	Portland, ME, United StatesHQ recorded Sep 23, 2026	11-50	46 contacts →
	Exact match “Confidence in Knowing.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10	International Institute For Analytics	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	11-50	36 contacts →
	Exact match “The International Institute for Analytics (IIA) is an independent, strategic, outcome-focused data and analytics advisory firm.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11	Northcross Group	Exact match	Portland, ME, United StatesHQ recorded Sep 23, 2026	11-50	34 contacts →
	Exact match “Northcross Group (NCG) helps companies take on big challenges and build sustainable programs for continued success as they grow and evolve.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12	Isler Northwest LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	11-50	25 contacts →
	Exact match “Isler Northwest LLC is a locally-owned firm of certified public accountants and business advisors.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	Pittman & Brooks, P.C	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	11-50	25 contacts →
	Exact match “We started Pittman & Brooks because we believe that businesses need more than accountants, they need business consultants who are CPA-certified.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14	Radha Consulting	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	11-50	23 contacts →
	Exact match “Radha Consulting was founded in 2005 to respond to the growing market need in the public sector for consulting services.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	Opus Consulting	Exact match	Portland, ME, United StatesHQ recorded Sep 23, 2026	11-50	21 contacts →
	Exact match “Opus Consulting is a full-service business advisory firm, that guides companies and their stakeholders across the entire lifecycle.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16	Pepper Foster Consulting	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	51-200	19 contacts →
	Exact match “Pepper Foster Consulting is a strategic project consulting firm with offices in Atlanta, Minneapolis, and Portland, OR.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17	Tyee Carr Advisory	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	1-10	14 contacts →
	Exact match “CFO Advisory and Outsourced Accounting for Growth Oriented Businesses and Nonprofits.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18	Cobalt, P.C	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	11-50	6 contacts →
	Exact match “We're not just advisors - we're integral partners in our clients' businesses.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19	Guidance Point Retirement Services, LLC	Exact match	Portland, ME, United StatesHQ recorded Sep 23, 2026	1-10	6 contacts →
	Exact match “Guidance Point Retirement Services is an independent retirement plan consulting firm headquartered in Portland, ME.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20	Indelible LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	11-50	6 contacts →
	Exact match “About Indelible At Indelible, we are more than just a consultancy; we are your Trusted Advisors in IT, Security, and Project Management.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21	Spinglass Management Group, LLC	Exact match	Portland, ME, United StatesHQ recorded Sep 23, 2026	11-50	6 contacts →
	Exact match “Spinglass Management Group, LLC is a leading regional business advisory firm made up of passionate professionals who focus on establishing relationships that create value.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22	Artichoke Consulting LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	1-10	5 contacts →
	Exact match “We are a tech team focused on the professional service industry, end-user adoption, and great go-lives.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23	Hamstreet & Associates, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	1-10	4 contacts →
	Exact match “Hamstreet & Associates, LLC is a company based out of One SW Columbia Street, Portland, Oregon, United States.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24	Parachute Strategies	Exact match	Portland, OR, United StatesHQ recorded Sep 23, 2026	1-10	4 contacts →
	Exact match “Parachute Strategies provides strategic planning, marketing planning, and marketing implementation services to private businesses and nonprofit organizations.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25	Wallabout Collective	Exact match	Portland, ME, United StatesHQ recorded Sep 23, 2026	1-10	3 contacts →
	Exact match “Growth consulting and strategic advisory.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “advisory consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 130 advisory consulting firms based in Portland, United States

See the full list, filter by size, metro and specialty, and access 1,557 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Advisory consulting firms based in Portland, United States at a glance

As of Sep 23, 2026

61.8%Verified-email coverage

19.4Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

100

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Portland, so it is reported there. Company counts and contact totals on this page are exact for Portland, over 130 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Portland, United States whose business descriptions match “advisory consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 1,557 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 23, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Advisory consulting firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “advisory consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many advisory consulting firms are there based in Portland, United States?

RevenueBase identified 130 company matches for advisory consulting firms associated with Portland, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Berrydunn Assurance, TAX And Consulting tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most advisory consulting firms?

New York leads the United States with 1,491 company records, followed by Chicago (556) and Atlanta (550). Portland has 130.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,557 professional contacts with verified work emails tracked across these 130 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.