Company lists · Data refreshed September 2026

Top 14 Professional services firms based in Dayton, United States

Name: Professional services firms based in Dayton, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 27 companies tracked

RevenueBase identified 27 company matches for professional services firms associated with Dayton, United States as of September 2026 and tracks 874 professional contacts across them, including 250 with verified work emails. Across the United States, New York is the largest hub for this category (620 companies); Dayton has 27.

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

27Companies

874Contacts tracked

250Verified emails

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The 14 largest professional services firms based in Dayton, United States

Ranked by team size

Top 14 of 27 company matches for professional services firms based in Dayton, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Clark Schaefer Hackett	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	501-1,000	683 contacts →
	Exact match “Clark Schaefer Hackett is more than an accounting and advisory firm; we’re striving to be your most valued advisor.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2	Flagel Huber Flagel	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	51-200	58 contacts →
	Exact match “The breadth and depth of experience Flagel Huber Flagel provides our clients is unmatched.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3	Kentner Sellers Cpas	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	11-50	35 contacts →
	Exact match “Kentner Sellers LLP, is a full-service accounting, tax and consulting firm located in Dayton, Ohio serving businesses in Ohio and surrounding states.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4	Hammerman, Graf, Hughes & Co., Inc. Cpas	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	11-50	33 contacts →
	Exact match “Hammerman, Graf, Hughes & Company, Inc.(HGH) is a full-service CPA firm with locations in Dayton, Ohio.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5	Goldshot, Lamb And Hobbs, Inc., Cpa's	Exact match	Dayton, United StatesHQ recorded Sep 5, 2026	11-50	15 contacts →
	Exact match “GLH provides audit, tax and business consulting services to all industries.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6	Delk Rutherford & Associates, INC	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	1-10	5 contacts →
	Exact match “In 1998, the founding partners of Delk Rutherford & Associates joined together to form what was then known as Delk & Associates CPA.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
7	RLO Contractors INC	Exact match	Dayton, MD, United StatesHQ recorded Sep 5, 2026	51-200	4 contacts →
	Exact match “Rlo Contractors Inc is an Accounting company located in 4796 Linthicum Rd, Dayton, Maryland, United States.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8	Duvall & Associates INC CPA	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	11-50	3 contacts →
	Exact match “An award-winning Dayton, Ohio CPA firm specializing in business accounting & tax returns as well as business valuations; mergers, acquisitions & reorganization transactions; and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9	NEW Business Filing	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	11-50	3 contacts →
	Exact match “New Business Filing is a company based out of Dayton, Ohio, United States.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
10	Conquistador Consulting LLC	Exact match	Dayton, United StatesHQ recorded Sep 5, 2026	1-10	3 contacts →
	Exact match “Who We Are, What We Do, and Why We Do It (In A Nutshell) Serving clients worldwide since 2011, Conquistador Consulting was founded in Dayton, OH.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11	Unitary Accounting Services	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	1-10	2 contacts →
	Exact match “Unitary Accounting provides accounting services to small businesses, start-ups, and individuals.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12	Pohlman, Talmage, Brown & Campbell Cpas, INC	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	11-50	1 contacts →
	Exact match “At Pohlman, Talmage, Brown & Campbell CPAs, Inc.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13	Padgett Advisors	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	1-10	1 contacts →
	Exact match “We provide tax, accounting, payroll and business consulting services to individuals and small businesses across North America.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14	D3 Financials LLC	Exact match	Dayton, OH, United StatesHQ recorded Sep 5, 2026	1-10	1 contacts →
	Exact match “We offer CPA certified services ranging from bookkeeping, consulting, and tax preparation to complete small business set up.” Recorded in the RevenueBase company graph · Sep 5, 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 “professional services 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 14 of 27 professional services firms based in Dayton, United States

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

As of Sep 5, 2026

28.6%Verified-email coverage

32.4Average contacts per company

11-50Median size (employees)

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole United States list rather than for Dayton, so it is reported there. Company counts and contact totals on this page are exact for Dayton, over 27 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 Dayton, 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 250 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 Dayton, United States?

RevenueBase identified 27 company matches for professional services firms associated with Dayton, 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?

Clark Schaefer Hackett 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). Dayton has 27.

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 250 professional contacts with verified work emails tracked across these 27 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.