Company lists · Data refreshed September 2026

Top 25 Professional services firms based in Rockville, United States

RevenueBase identified 46 company matches for professional services firms associated with Rockville, United States as of September 2026 and tracks 486 professional contacts across them, including 146 with verified work emails. Across the United States, New York is the largest hub for this category (620 companies); Rockville has 46.

This list covers company matches for professional services firms associated with Rockville, 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 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 5, 2026 How this list was built
46Companies
486Contacts tracked
146Verified emails
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The 25 largest professional services firms based in Rockville, United States

Ranked by team size
Top 25 of 46 company matches for professional services firms based in Rockville, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202651-20093 contacts →

Exact match

“TFC Consulting, Inc is a licensed CPA and consulting firm in the Washington DC metro area.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2Exact matchRockville, MD, United StatesHQ recorded Sep 5, 2026201-50045 contacts →

Exact match

“Destiny Management Services, LLC (DMS) is an experienced provider of business and information solutions, for financial management, information technology, accounting, auditing…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-5017 contacts →

Exact match

“The cornerstone of Penan & Scott, P.C.'s success in providing professional services emanates from our commitment to the entrepreneurial approach to business, and our ability to…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4Exact matchRockville, MD, United StatesHQ recorded Sep 5, 20261-1016 contacts →

Exact match

“A professional business consulting and management company.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5Exact matchRockville, MD, United StatesHQ recorded Sep 5, 20261-1016 contacts →

Exact match

“As strategists, business consultants, accountants, bookkeepers, tax preparers and experts, our job is to assist clients in maximizing profits.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6Exact matchRockville, MD, United StatesHQ recorded Sep 5, 2026201-50014 contacts →

Exact match

“Effective January 1st, 2023, Aronson merged with Aprio, a nationally recognized Top 100 business advisory and CPA firm headquartered in Atlanta, GA.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
7Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-5010 contacts →

Exact match

“Corporate CFO Services is one of the premier providers of Accounting and Business Advisory Services within the Mid-Atlantic region, whose primary goal is to provide your company…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-5010 contacts →

Exact match

“Taxes?”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9Exact matchRockville, United StatesHQ recorded Sep 5, 20261-109 contacts →

Exact match

“Clarkson David, CPA is a full service accounting and consulting firm, providing a range of services across a spectrum of industries and interests.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
10Exact matchRockville, MD, United StatesHQ recorded Sep 5, 20261-109 contacts →

Exact match

“We offer clients creative, competent, and compliant solutions to business and legal issues.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-508 contacts →

Exact match

“We bring over 75 years of combined tax & accounting experience to its clients.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-508 contacts →

Exact match

“Over the years, MN Blum has combined professional expertise with dedication to service.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202651-2007 contacts →

Exact match

“Saggar & Rosenberg, P.C, is a growing CPA and Management Consulting firm that serves a broad base of private sector and non-profit industries to include: government contractors…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14Exact matchRockville, MD, United StatesHQ recorded Sep 5, 20261-107 contacts →

Exact match

“NLH Contracting is a full service outsourced consulting firm focused on results and solutions to support our clients.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-506 contacts →

Exact match

“Deva & Associates, P.C, a small business, has built a strong reputation for providing high quality, timely and cost-effective services, with a proven track record of superior…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16Exact matchRockville, MD, United StatesHQ recorded Sep 5, 20261-105 contacts →

Exact match

“From 2007, we started by providing small to mid-size businesses with bookkeeping and tax preparation services.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-505 contacts →

Exact match

“NBAC Corp is a unique international business advisory and boutique consulting firm that specializes in cross-border business and personal finance services for small-to-mid-size…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-503 contacts →

Exact match

“CAS & Associates, Inc is a well-established accounting firm located in Rockville, MD.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-503 contacts →

Exact match

“Pixces is a highly-skilled, professional services consultancy that creates innovative solutions and game-changing results for our clients.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-502 contacts →

Exact match

“Finacc Partners is a team of Certified Public Accountants, Business Consultants and Financial Advisors.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-502 contacts →

Exact match

“Founded in 2014, James Magno, CPA LLC is a small firm based in Rockville, Maryland.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22Exact matchRockville, MD, United StatesHQ recorded Sep 5, 20261-102 contacts →

Exact match

“Eric J.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23Exact matchRockville, MD, United StatesHQ recorded Sep 5, 202611-501 contacts →

Exact match

“Taksey Neff & Associates, LLC provides audit, tax and consulting services to numerous industry sectors, nonprofit organizations and individuals.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24Exact matchRockville, MD, United StatesHQ recorded Sep 5, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25Exact matchRockville, MD, United StatesHQ recorded Sep 5, 20261-101 contacts →

Exact match

“Prescient Group is setting a new precedent in business consulting by consistently delivering on one shared goal, making your business more profitable.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase

Showing 25 of 46 professional services firms based in Rockville, United States

See the full list, filter by size, metro and specialty, and access 146 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Professional services firms based in Rockville, United States at a glance

As of Sep 5, 2026
30.0%Verified-email coverage
10.6Average contacts per company
1-10Median size (employees)
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
16
51-200
3
201-500
2
1,001-5,000
1

Email recency for this list is measured across the whole United States list rather than for Rockville, so it is reported there. Company counts and contact totals on this page are exact for Rockville, over 46 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 Rockville, United States whose business descriptions match “professional services 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 146 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 5, 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.

Professional services 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 “professional services firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional services firms are there based in Rockville, United States?

RevenueBase identified 46 company matches for professional services firms associated with Rockville, 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?

TFC Consulting, 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 professional services firms?

New York leads the United States with 620 company records, followed by Houston (420) and Atlanta (304). Rockville has 46.

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 146 professional contacts with verified work emails tracked across these 46 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 5, 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.