Company lists · Data refreshed September 2026

Top 16 Impact consulting firms based in Gaithersburg, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 32 companies tracked

RevenueBase identified 32 company matches for impact consulting firms associated with Gaithersburg, United States as of September 2026 and tracks 178 professional contacts across them, including 86 with verified work emails. Across the United States, New York is the largest hub for this category (1,952 companies); Gaithersburg has 32.

This list covers company matches for impact consulting firms associated with Gaithersburg, 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 30, 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 30, 2026 How this list was built

32Companies

178Contacts tracked

86Verified emails

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The 16 largest impact consulting firms based in Gaithersburg, United States

Ranked by team size

Top 16 of 32 company matches for impact consulting firms based in Gaithersburg, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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	The Scientific Consulting Group, INC	Exact match	Gaithersburg, United StatesHQ recorded Sep 30, 2026	51-200	73 contacts →
	Exact match “The Scientific Consulting Group, Inc.(SCG) is a small, woman-owned consulting firm that specializes in supporting the development and communication of environmental and health…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Potomac-Hudson Engineering, INC	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	51-200	34 contacts →
	Exact match “PHE is an innovative environmental, planning, and technology consulting firm.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Knowledge Advantage INC	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	11-50	10 contacts →
	Exact match “KAI combines leading-edge technologies with state-of-the-art management practices to deliver comprehensive solutions that support critical mission needs and business initiatives.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Rocimg	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	8 contacts →
	Exact match “ROCIMG specializes in idea development, implementation and management consulting to help our public and private sector clients solve complex business problems related to…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	The Fehlig Group	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	5 contacts →
	Exact match “The Fehlig Group is a woman-owned, B Corp certified management consultancy that helps businesses succeed in applying their values to initiatives for a healthier planet, stronger…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	The Mckelvey Group, INC	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	11-50	5 contacts →
	Exact match “The McKelvey Group, Inc.(TMG) is headquartered in Gaithersburg, MD and has been providing services to companies in the Government and Commercial markets for 15 years.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Sentilect, LLC	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	5 contacts →
	Exact match “Sentilect, LLC is a consulting firm, which provides a wide range of IT services to government and non-government organizations in the Greater Washington DC area.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Tricon Solutions LLC	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	4 contacts →
	Exact match “Tricon is a small business consulting firm specializing in data strategy and management.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Tessellate Consulting Group	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	3 contacts →
	Exact match “At Tessellate Consulting Group, we share a fundamental belief that people and process are the keys to success.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Eclipse People Solutions	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	2 contacts →
	Exact match “Eclipse People Solutions is a boutique consulting firm that delivers strategic Human Resources and Operations thought leadership to both growing and established businesses.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Principles Of Execution LLC A Certified MBE DBA Turnberry Premiere	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	11-50	1 contacts →
	Exact match “Turnberry Premiere helps organizations create a sustainable workplace of high-performing teams and leaders who create innovative solutions and who can accomplish more every day!” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Newplan, LLC	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	1 contacts →
	Exact match “NewPlan, LLC, works with technology-driven companies to provide CEO- and Board-level strategic advice and develop concrete, executable strategic, business, and operating plans…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Recollaborate	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	1 contacts →
	Exact match “reCollaborate is an agile business consulting firm that works as a knowledge advisor to entrepreneurs, small businesses, sales teams and mid-to-large corporations to achieve…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	A O Strategy Group, LLC	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	1 contacts →
	Exact match “Your business is important to you.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Endless Business Solutions	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	1 contacts →
	Exact match “At Endless Business Solutions, we help business owners, founders, and nonprofit leaders reclaim their time, realign their teams, and run smarter, not harder.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	GSR Marketing & Communications Consulting	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 30, 2026	1-10	1 contacts →
	Exact match “Welcome to GSR Marketing and Communications Consulting.” Recorded in the RevenueBase company graph · Sep 30, 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 “impact 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 16 of 32 impact consulting firms based in Gaithersburg, United States

See the full list, filter by size, metro and specialty, and access 86 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Impact consulting firms based in Gaithersburg, United States at a glance

As of Sep 30, 2026

48.3%Verified-email coverage

5.6Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Gaithersburg, so it is reported there. Company counts and contact totals on this page are exact for Gaithersburg, over 32 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 Gaithersburg, United States whose business descriptions match “impact 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 86 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 30, 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.

Impact 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 “impact consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many impact consulting firms are there based in Gaithersburg, United States?

RevenueBase identified 32 company matches for impact consulting firms associated with Gaithersburg, 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?

The Scientific Consulting Group, INC 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 impact consulting firms?

New York leads the United States with 1,952 company records, followed by Chicago (974) and Washington (937). Gaithersburg has 32.

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 86 professional contacts with verified work emails tracked across these 32 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 30, 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.