Company lists · Data refreshed September 2026

Top 8 Advocacy organizations consulting firms based in Durham, United States

RevenueBase identified 26 advocacy organizations consulting firms headquartered in Durham, United States as of September 2026 and tracks 194 professional contacts across them, including 108 with verified work emails. Washington is the largest hub.

This list covers advocacy organizations consulting firms headquartered in Durham, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review
26Companies
194Contacts tracked
108Verified emails
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The 8 largest advocacy organizations consulting firms based in Durham, United States

Ranked by team size
Top 8 of 26 advocacy organizations consulting firms based in Durham, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to advocacy organizations consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDurham, NC, United StatesHQ checked Sep 27, 20261-1028 contacts →

Partial evidence

“Fountainworks is a management and facilitation consulting firm in Raleigh, North Carolina.”

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidenceDurham, NC, United StatesHQ checked Sep 27, 202651-20026 contacts →

Partial evidence

“The Institute is a nonprofit management consulting and services firm focused on business diversity and inclusion.”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceDurham, NC, United StatesHQ checked Sep 27, 20261-106 contacts →

Indirect evidence

“Pantheon’s co-founders are Obama Campaign veterans with nearly two combined decades of experience in political data.”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceDurham, NC, United StatesHQ checked Sep 27, 20261-104 contacts →

Partial evidence

“For organizations that want to make a meaningful impact on public health, Evidence to Practice provides consulting and advising on projects that accelerate the adoption of…”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceDurham, NC, United StatesHQ checked Sep 27, 20261-103 contacts →

Partial evidence

“Founded in 1998, Nagle & Associates is a full service national consulting firm dedicated to helping innovative foundations and nonprofits accelerate progress and maximize results.”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceDurham, NC, United StatesHQ checked Sep 27, 20261-101 contacts →

Partial evidence

“The primary mission of Bannister Consultancy is to catalyze organizational excellence, advance meaningful healthcare policy, and promote access-to-care through advocacy and…”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceDurham, NC, United StatesHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“We guide mission-driven organizations through funding, planning, and project management, so you can focus on your mission while we keep your development on track.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceDurham, NC, United StatesHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“I love my work.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 8 of 26 advocacy organizations consulting firms based in Durham, United States

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Advocacy organizations consulting firms based in Durham, United States at a glance

As of Sep 27, 2026
55.7%Verified-email coverage
7.5Average contacts per company
1-10Median size (employees)
4984.6%Largest-city concentration · Washington
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
2
51-200
3

Email recency for this list is measured across the whole United States list rather than for Durham, so it is reported there. Company counts and contact totals on this page are exact for Durham, over 26 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among advocacy organizations consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Durham, United States whose own description of what they do matches “advocacy organizations consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names advocacy organizations consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among advocacy organizations consulting firms, and records with no verified work email. Companies headquartered outside Durham are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 108 across the full list. 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 27, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Advocacy organizations consulting firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names advocacy organizations consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many advocacy organizations consulting firms are there based in Durham, United States?

RevenueBase identified 26 advocacy organizations consulting firms headquartered in Durham, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Fountainworks, headquartered in Durham, tops this list with the largest team on record.

Which city has the most advocacy organizations consulting firms?

Washington leads with 1296 headquartered companies, followed by New York (600) and Chicago (327).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 108 verified decision-maker contacts tracked across these 26 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 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 Smart Search, 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.