Company lists · Data refreshed September 2026

Top 25 Nonprofit consulting providers based in Houston, United States

Name: Nonprofit consulting providers based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 94 companies tracked

RevenueBase identified 94 nonprofit consulting providers headquartered in Houston, United States as of September 2026 and tracks 7,818 professional contacts across them, including 234 with verified work emails. New York is the largest hub.

This list covers nonprofit consulting providers headquartered in Houston, 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 14, 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 14, 2026 86% judged on-target in blind review

94Companies

7,818Contacts tracked

234Verified emails

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The 25 largest nonprofit consulting providers based in Houston, United States

Ranked by team size

Top 25 of 94 nonprofit consulting providers based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit consulting providers: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Petral Consulting Company	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	n/a	64 contacts →
	Partial evidence “provides descriptions of ongoing consulting services, special projects, and areas of consulting expertise,” Source: RevenueBase Database · checked Sep 14, 2026
2	AMC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	36 contacts →
	Indirect evidence “AMC – Association Management Consultants, LLC established in 2002 is a leader in effectively and efficiently managing the day to day operations of 501 (c)3 and 501 (c)6…” Source: RevenueBase Database · checked Sep 14, 2026
3	Dini Spheris	Strong evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	35 contacts →
	Strong evidence “Dini Spheris is a Houston-based nonprofit fundraising consulting firm that's been partnering with local, national and international nonprofits for more than 50 years.” Source: RevenueBase Database · checked Sep 14, 2026
4	Sterling	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	24 contacts →
	Partial evidence “Because nonprofits cannot thrive on noble missions alone, Sterling serves as a business consultancy that helps mobilize nonprofits and the people behind them, equipping these…” Source: RevenueBase Database · checked Sep 14, 2026
5	January Advisors	Strong evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	16 contacts →
	Strong evidence “January Advisors is a data consulting firm that works with nonprofits, governments, academics, and philanthropy.” Source: RevenueBase Database · checked Sep 14, 2026
6	Virtuas	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	14 contacts →
	Indirect evidence “Virtuas is a force for good in the IT industry.” Source: RevenueBase Database · checked Sep 14, 2026
7	We-Collab	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	8 contacts →
	Partial evidence “We-Collab is a strategy consulting firm that helps philanthropies, government agencies, national advocacy organizations, member-based organizations, and social impact entities…” Source: RevenueBase Database · checked Sep 14, 2026
8	Gray Reed Advisory Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	8 contacts →
	Indirect evidence “Gray Reed Advisory Services creates strategies that elevate companies from where they are today to where they want to be in the future.” Source: RevenueBase Database · checked Sep 14, 2026
9	Executive Service Corps Of Houston	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	7 contacts →
	Partial evidence “Since 1984, Serving the Nonprofits that Serve Our Communities Executive Service Corps of Houston is focused exclusively on advising nonprofits.” Source: RevenueBase Database · checked Sep 14, 2026
10	Thrive Nonprofit Solutions, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Partial evidence “Thrive Nonprofit Solutions, LLC provides your nonprofit with the tools to positively impact the community and simultaneously thrive as successful business.” Source: RevenueBase Database · checked Sep 14, 2026
11	Edustart LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	3 contacts →
	Indirect evidence “The EduStart team specializes in start-up education and philanthropic ventures and consults with clients on mission and vision development, governance and organization structure…” Source: RevenueBase Database · checked Sep 14, 2026
12	AFC Power Strategy Group	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	3 contacts →
	Partial evidence “AFC Power Strategy Group is a management consulting firm that serves as a trusted advisor to companies in the private, public, and social sectors.” Source: RevenueBase Database · checked Sep 14, 2026
13	Cardumen Consulting	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Partial evidence “As Cardumen's Principal Consultant, Benji provides right-sized consulting that gets (and keeps) growing organizations running smoothly.” Source: RevenueBase Database · checked Sep 14, 2026
14	Wheelhouse	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Indirect evidence “At Wheelhouse, we specialize in empowering new and emerging youth enrichment franchisors to achieve their full potential.” Source: RevenueBase Database · checked Sep 14, 2026
15	Small Business Innovation Consulting	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Partial evidence “Small Business Innovation Consulting was founded in Houston, TX to improve the efficiency of small businesses and to ultimately achieve sustainability.” Source: RevenueBase Database · checked Sep 14, 2026
16	M Chenault Management Consulting, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Partial evidence “M Chenault Management Consulting, LLC is committed to being a strategic partner to new and existing small business owners.” Source: RevenueBase Database · checked Sep 14, 2026
17	Blüm Consulting	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Indirect evidence “At Blüm, we offer a comprehensive suite of services designed to catalyze growth, streamline operations, and elevate your business to new heights.” Source: RevenueBase Database · checked Sep 14, 2026
18	Champion Consulting & Solutions	Indirect evidence	Houston, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Indirect evidence “Our consultation service offers expert advice and strategic solutions for businesses seeking to optimize their operations and achieve long-term success.” Source: RevenueBase Database · checked Sep 14, 2026
19	Landing Advisors	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Partial evidence “We are a boutique consulting firm with a focus on non-profits, government agencies, and small businesses in the greater Houston area.” Source: RevenueBase Database · checked Sep 14, 2026
20	Tipton & Company LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
21	Vestedin Consulting Group, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Indirect evidence “The firm's expertise lies in guiding organizations through the discovery, design, and execution of strategies to become higher-performing and more sustainable, which results in…” Source: RevenueBase Database · checked Sep 14, 2026
22	Harper Lawrence Financial LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Indirect evidence “Holly N.” Source: RevenueBase Database · checked Sep 14, 2026
23	Shattuck Consulting LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Indirect evidence “Carol S.” Source: RevenueBase Database · checked Sep 14, 2026
24	Kane Capital Group	Partial evidence	Houston, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Partial evidence “KCG is a Houston based consulting firm.” Source: RevenueBase Database · checked Sep 14, 2026
25	Okavane	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Partial evidence “We provide tailored project management services that empower nonprofits to achieve their missions.” Source: RevenueBase Database · checked Sep 14, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: nonprofit consulting providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names nonprofit consulting providers.
Partial evidence: Its own public description names part of nonprofit consulting providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name nonprofit consulting providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 94 nonprofit consulting providers based in Houston, United States

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Nonprofit consulting providers based in Houston, United States at a glance

As of Sep 14, 2026

3.0%Verified-email coverage

83.2Average contacts per company

1-10Median size (employees)

294.7%Largest-city concentration · New York

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

201-500

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 94 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 nonprofit consulting providers, 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 Houston, United States whose own description of what they do matches “nonprofit consulting providers”. 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 nonprofit consulting providers), 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 nonprofit consulting providers, and records with no verified work email. Companies headquartered outside Houston 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, 234 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 14, 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.

Nonprofit consulting providers 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 nonprofit consulting providers, 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 nonprofit consulting providers are there based in Houston, United States?

RevenueBase identified 94 nonprofit consulting providers headquartered in Houston, 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?

Petral Consulting Company, headquartered in Houston, tops this list with the largest team on record.

Which city has the most nonprofit consulting providers?

New York leads with 277 headquartered companies, followed by Washington (239) and Chicago (201).

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 234 verified decision-maker contacts tracked across these 94 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 14, 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.