Company lists · Data refreshed September 2026
Top 21 Nonprofit consultants based in St. Louis, United States
RevenueBase identified 48 nonprofit consultants headquartered in St. Louis, United States as of September 2026 and tracks 725 professional contacts across them, including 65 with verified work emails. New York is the largest hub.
This list covers nonprofit consultants headquartered in St. Louis, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 21 largest nonprofit consultants based in St. Louis, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | REM And CompanyIndirect evidence | 577 | |||
“49% of Businesses fail within their first 5 years.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | Zielinski CompaniesPartial evidence | 15 | |||
“Since 1957 Zielinski Companies has helped religious and nonprofit organizations address their financial, planning, and fundraising needs.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | Mission Matters GroupIndirect evidence | 13 | |||
“Mission Matters Group was founded in 2011 for one purpose – to help our clients harness the power of technology in support of their unique mission.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | KP Consulting GroupIndirect evidence | 12 | |||
“KP Consulting is a consortium of trusted professionals with decades of experience in communication strategy, creative marketing tactics and specialized implementation throughout a…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | Nmbl StrategiesPartial evidence | 7 | |||
“NMBL Strategies seeks to empower small businesses, nonprofits and public-private enterprises through trusted consulting partnerships.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | Holmes, Radford & ReynoldsIndirect evidence | 5 | |||
“A leader in the field of philanthropy, Holmes, Radford & Reynolds has the competencies and experience to deliver the results you need to move forward.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | Gladiator ConsultingIndirect evidence | 5 | |||
“Since our inception, Gladiator Consulting set out to be a different type of partner.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | Michael D. Rubin & AssociatesIndirect evidence | 4 | |||
“Michael D.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 3 | ||||
“At the Dewey Impact Group, we understand that every cultural and educational organization is unique, with its own vision, challenges, and opportunities.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | Tate Consults, LLCPartial evidence | 3 | |||
“Tate Consults provides nonprofit consulting and professional development, focusing on fund strategies and executive coaching for building healthy, high performing boards and staff…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | Savi Gurus LLCIndirect evidence | 3 | |||
“Sometimes problems linger because “we’ve always done it this way.” Sometimes problems go unsolved because it's too daunting, “If we start, we can’t finish it.” Savi Gs can solve…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | Relevant Thread Consulting LLCPartial evidence | 2 | |||
“Is it even possible for nonprofits to earn transformation-level support without a capital campaign, rebrand, or marketing push?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2 | ||||
“At Advocate we believe in the following core principles: Business isn’t complicated.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | Peak Organization Performance, LLCIndirect evidence | 2 | |||
“Peak Organization Performance will help you surmount your company's peaks with the Sherpa Services you need to optimize your organization’s short-and long-term performance.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | KBL Impact PartnersPartial evidence | 2 | |||
“At KBL Impact Partners, we help nonprofit leaders scale their impact, increase funding, and build long-term sustainability through proven strategies, coaching, and consulting.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 | ||||
“Blackrock Consulting is a local, majority-woman owned business with expertise ranging from government relations and public policy to environmental sustainability and community…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | MBL VenturesPartial evidence | 1 | |||
“MBL Ventures provides management consulting services for businesses, nonprofits, and public sector organizations navigating strategy, structure, and government.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Linda Goldstein ConsultingPartial evidence | 1 | |||
“Change management consultant for governments, public agencies, non-profits, and companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 | ||||
“Welcome to Anavo Strategies – Where Vision Meets Action for Lasting Impact.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Kampen Consultants, LLCIndirect evidence | 1 | |||
“Our firm was founded in 1988 to meet the needs of small business owners - greater efficiency, greater effectiveness, and real results.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 | ||||
“3rd Culture Consulting provides results-driven solutions to its clients in the areas of nonprofit administration, millennial coaching, and fundraising.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 21 of 48 nonprofit consultants based in St. Louis, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 65 reachable decision-makers.
Free signup · no credit card
Nonprofit consultants based in St. Louis, United States at a glance
As of Sep 5, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for St. Louis, over 48 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 consultants, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in St. Louis, United States whose own description of what they do matches “nonprofit consultants”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among nonprofit consultants, and records with no verified work email. Companies headquartered outside St. Louis 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 an evidence 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, 65 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 5, 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 consultants by metro in the United States
- Nonprofit consultants in New York500
- Nonprofit consultants in Washington443
- Nonprofit consultants in Chicago351
- Nonprofit consultants in Atlanta305
- Nonprofit consultants in Los Angeles299
- Nonprofit consultants in Seattle178
- Nonprofit consultants in Denver174
- Nonprofit consultants in Austin163
- Nonprofit consultants in Boston154
- Nonprofit consultants in Houston154
- Nonprofit consultants in San Francisco151
- Nonprofit consultants in Philadelphia149
- Nonprofit consultants in Dallas148
- Nonprofit consultants in Portland129
- Nonprofit consultants in Phoenix122
- Nonprofit consultants in San Diego120
- Nonprofit consultants in Miami110
- Nonprofit consultants in Minneapolis105
- Nonprofit consultants in Charlotte103
- Nonprofit consultants in Indianapolis83
- Nonprofit consultants in Nashville73
- Nonprofit consultants in Cleveland70
- Nonprofit consultants in Columbus68
- Nonprofit consultants in Tampa67
- Nonprofit consultants in Raleigh66
- Nonprofit consultants in Arlington64
- Nonprofit consultants in Baltimore64
- Nonprofit consultants in Pittsburgh62
- Nonprofit consultants in San Antonio61
- Nonprofit consultants in Sacramento60
- Nonprofit consultants in Orlando59
- Nonprofit consultants in Alexandria57
- Nonprofit consultants in Richmond57
- Nonprofit consultants in Detroit56
- Nonprofit consultants in Kansas City55
- Nonprofit consultants in Las Vegas55
- Nonprofit consultants in Oakland51
- Nonprofit consultants in New York City48
- Nonprofit consultants in St. Louis48
- Nonprofit consultants in Cincinnati47
- Nonprofit consultants in Fort Worth47
- Nonprofit consultants in New Orleans47
- Nonprofit consultants in Brooklyn43
- Nonprofit consultants in Madison43
- Nonprofit consultants in Grand Rapids42
- Nonprofit consultants in Jacksonville41
- Nonprofit consultants in Milwaukee41
- Nonprofit consultants in Berkeley40
- Nonprofit consultants in Rochester39
- Nonprofit consultants in Columbia38
- Nonprofit consultants in Louisville38
- Nonprofit consultants in Omaha38
- Nonprofit consultants in Boulder36
- Nonprofit consultants in Colorado Springs36
- Nonprofit consultants in Greenville36
- Nonprofit consultants in Memphis33
- Nonprofit consultants in Albuquerque32
- Nonprofit consultants in Durham30
- Nonprofit consultants in Scottsdale30
- Nonprofit consultants in Fort Lauderdale29
- Nonprofit consultants in Wilmington29
- Nonprofit consultants in Charleston28
- Nonprofit consultants in Lexington28
- Nonprofit consultants in Long Beach28
- Nonprofit consultants in Bethesda27
- Nonprofit consultants in Fairfax27
- Nonprofit consultants in Remote27
- Nonprofit consultants in Tallahassee27
- Nonprofit consultants in Tulsa27
- Nonprofit consultants in Tucson26
- Nonprofit consultants in Ann Arbor25
- Nonprofit consultants in Asheville25
- Nonprofit consultants in Baton Rouge25
- Nonprofit consultants in Birmingham25
- Nonprofit consultants in West Palm Beach25
Frequently asked
How many nonprofit consultants are there based in St. Louis, United States?
RevenueBase identified 48 nonprofit consultants headquartered in St. Louis, 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?
REM And Company, headquartered in St. Louis, tops this list with the largest team on record.
Which city has the most nonprofit consultants?
New York leads with 500 headquartered companies, followed by Washington (443) and Chicago (351).
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 65 verified decision-maker contacts tracked across these 48 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 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 48 nonprofit consultants based in St. Louis, United States. Start with a free account, no credit card.
Get the full listRelated lists
Nonprofit consultants by geography
- Nonprofit consultants based in the United States
- Nonprofit consultants based in the United Kingdom
- Nonprofit consultants based in Canada
- Nonprofit consultants based in Brazil
- Nonprofit consultants based in France
- Nonprofit consultants based in Australia
- Nonprofit consultants based in Germany
- Nonprofit consultants based in the Netherlands
- Nonprofit consultants based in Spain
- Nonprofit consultants based in Italy
- Nonprofit consultants based in Sweden
- Nonprofit consultants based in Mexico
Browse the directory
Browse: Companies home · Nonprofit consultants in United States · All United States lists · All Nonprofit consultants lists · New lists
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Nonprofit consultants based in the United States
- Nonprofit consultants based in the United Kingdom
- Nonprofit consultants based in Canada
- Nonprofit consultants based in Brazil
- Nonprofit consultants based in France
- Nonprofit consultants based in Australia