Company lists · Data refreshed September 2026

Top 25 Professional services firms based in Wilmington, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 58 companies tracked

RevenueBase identified 58 professional services firms headquartered in Wilmington, United States as of September 2026 and tracks 494 professional contacts across them, including 213 with verified work emails. New York is the largest hub.

This list covers professional services firms headquartered in Wilmington, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

58Companies

494Contacts tracked

213Verified emails

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The 25 largest professional services firms based in Wilmington, United States

Ranked by team size

Top 25 of 58 professional services firms based in Wilmington, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names professional services firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Belfint, Lyons & Shuman, P.AIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	51-200	102
	“Belfint, Lyons & Shuman (BLS) is an accounting firm dedicated to serving businesses, nonprofits, estates, and trusts in Delaware, Pennsylvania and beyond.” Source: company website · checked Sep 5, 2026
2	Gunnip & Company CpasIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	51-200	40
	“Gunnip & Company LLP, Certified Public Accountants and Consultants, is a Delaware firm serving Delaware, Pennsylvania, New Jersey and Maryland with highly personalized and…” Source: company website · checked Sep 5, 2026
3	Barbacane, Thornton & CompanyIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	11-50	34
	“BTCPA specializes in accounting, consulting, auditing, and tax services for governmental agencies, nonprofits, employee benefit plans, and schools.” Source: company website · checked Sep 5, 2026
4	JARSIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	11-50	34
	“JARS is a multi-disciplinary consulting firm that supports businesses with complete financial and legal advisory and HNIs with wealth and treasury management.” Source: company website · checked Sep 5, 2026
5	Williford Houston & Co., Cpas, PllcIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	11-50	30
	“Williford, Houston & Co, CPAs, PLLC is committed to your success.” Source: company website · checked Sep 5, 2026
6	RED Bike AdvisorsIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	11-50	21
	“Red Bike Advisors is on a mission to help small business owners simplify, streamline, and save with “Know Your Numbers” financial and tax insights.” Source: company website · checked Sep 5, 2026
7	Master, Sidlow & Associates, P. AIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	11-50	12
	“For over 30 years, the team at Master, Sidlow & Associates, P.A, has been helping businesses throughout the Delaware Valley with tax planning and compliance, accounting and audit…” Source: company website · checked Sep 5, 2026
8	Wheeler Wolfenden And Dwares, PASIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	11-50	11
	“At Wheeler Wolfenden and Dwares, CPAs, our first priority is you.” Source: company website · checked Sep 5, 2026
9	Stroud & Company Cpas, PllcIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	11-50	11
	“Stroud & Company CPAs is known as a leader in South East North Carolina in highly personalized, results-oriented tax preparation and accounting services.” Source: company website · checked Sep 5, 2026
10	Williams Houck & CompanyStrong evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	11-50	11
	“Williams Humphreys & Company (WHC) is a full-service tax accounting and tax advisory firm that is redefining the roles accounting professionals play in supporting their clients’…” Source: company website · checked Sep 5, 2026
11	Woodruff & Associates CPA PCIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	1-10	6
	“We are a CPA firm that enjoys having personal connections with our clients while providing quality service.” Source: company website · checked Sep 5, 2026
12	Suggs & Company, Cpa, P.AIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	11-50	5
	“Suggs & Company P.A- Certified Public Accountants & Consultants serving clients in eastern United States” Source: company website · checked Sep 5, 2026
13	Chad Wouters, CPA PllcIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	1-10	5
	“A CPA firm focused on providing concierge CPA services.” Source: company website · checked Sep 5, 2026
14	Bumpers & Company, Certified Public AccountantsIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	11-50	5
	“Bumpers & Company, Certified Public Accountants, is a Wilmington-based CPA and consulting company that has been providing outstanding service to a wide range of clients since 1922.” Source: company website · checked Sep 5, 2026
15	Earney & Company, L.L.PIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	11-50	5
	“Founded in 1982, Earney & Company, L.L.P.” Source: company website · checked Sep 5, 2026
16	JON T. Vincent, Cpa, P.CIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	51-200	4
	Source: company website · checked Sep 5, 2026
17	D'amato & Laspada, LLCIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	1-10	4
	“D'Amato & LaSpada, LLC specializes in providing comprehensive accounting, tax and business consulting services to individuals, entrepreneurs, family owned businesses and mid-sized…” Source: company website · checked Sep 5, 2026
18	Level UP Strategies, LLCIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	1-10	4
	“At Level Up Strategies, we're not just consultants; we're doers.” Source: company website · checked Sep 5, 2026
19	Wise Business SolutionsIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	1-10	4
	“Your business needs to fund your life: travel, adventure, education, and retirement.” Source: company website · checked Sep 5, 2026
20	Olivia Clark CPA PllcIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	1-10	3
	“Hello, I'm Olivia Clark, and my commitment is to empower businesses through quality accounting services and comprehensive financial solutions.” Source: company website · checked Sep 5, 2026
21	Magis Consulting INCIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	1-10	2
	Source: company website · checked Sep 5, 2026
22	Harbor Creek Financial Services, LLPIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	1-10	2
	“Financial consulting and advisory services for small to medium-sized businesses and individuals.” Source: company website · checked Sep 5, 2026
23	Chandler Nichol & Sloan, P.AIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	1-10	2
	Source: company website · checked Sep 5, 2026
24	J. LEE Martin Ii, Cpa, P.AIndirect evidence	Wilmington, NC, United StatesHQ checked Sep 5, 2026	1-10	2
	“J.” Source: company website · checked Sep 5, 2026
25	Century TAX & AccountingIndirect evidence	Wilmington, DE, United StatesHQ checked Sep 5, 2026	1-10	2
	“We are a full-service Accounting firm with locations in Delaware, Pennsylvania, and Florida.” Source: company website · checked Sep 5, 2026

Showing 25 of 58 professional services firms based in Wilmington, United States

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

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 593 HQs

Contacts with mobile numbers

Sep 5, 2026Data 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 this city, so it is reported there. Company counts and contact totals on this page are exact for Wilmington, over 58 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 professional services firms, 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 Wilmington, United States whose own description of what they do matches “professional services firms”. 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 professional services firms, and records with no verified work email. Companies headquartered outside Wilmington 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, 213 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.

Professional services firms by metro in the United States

Frequently asked

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

RevenueBase identified 58 professional services firms headquartered in Wilmington, 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?

Belfint, Lyons & Shuman, P.A, headquartered in Wilmington, tops this list with the largest team on record.

Which city has the most professional services firms?

New York leads with 593 headquartered companies, followed by Houston (420) and Atlanta (304).

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 213 verified decision-maker contacts tracked across these 58 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.

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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.