Company lists · Data refreshed September 2026

Top 25 Advisory and outsourcing services based in Wilmington, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 140 companies tracked

RevenueBase identified 140 company matches for advisory and outsourcing services associated with Wilmington, United States as of September 2026 and tracks 3,448 professional contacts across them, including 1,566 with verified work emails. Across the United States, New York is the largest hub for this category (1,947 companies); Wilmington has 140.

This list covers company matches for advisory and outsourcing services associated with Wilmington, 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 23, 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 23, 2026 How this list was built

140Companies

3,448Contacts tracked

1,566Verified emails

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The 25 largest advisory and outsourcing services based in Wilmington, United States

Ranked by team size

Top 25 of 140 company matches for advisory and outsourcing services based in Wilmington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 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 Siegfried Group	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	1,001-5,000	1,573 contacts →
	Exact match “We help CFOs and executive teams clarify what matters most, then deliver elite financial talent to make it happen.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2	Intello Group, INC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	201-500	127 contacts →
	Exact match “We provide IT Consulting across a number of specialty areas and industry verticals, establishing success in both private enterprise and the public sector.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	Belfint, Lyons & Shuman, P.A	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	102 contacts →
	Exact match “Belfint, Lyons & Shuman (BLS) is an accounting firm dedicated to serving businesses, nonprofits, estates, and trusts in Delaware, Pennsylvania and beyond.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4	IMAP	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	201-500	99 contacts →
	Exact match “IMAP has been guiding business owners and investors in M&A and corporate finance advisory transactions since 1973.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5	Bolsterbiz	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	94 contacts →
	Exact match “BolsterBiz is a leading provider of comprehensive offshoring and outsourcing services, designed to drive business growth, optimize operational efficiency, and ensure long-term…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	Breakwater Accounting Advisory Corp	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	66 contacts →
	Exact match “We’re financial and back office experts who understand that every business is unique.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	Paradiso AI Consulting	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	59 contacts →
	Exact match “Paradiso AI Consulting is the AI consulting division of Paradiso Solutions - a technology company with the DNA of Silicon Valley and a global presence.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8	SHJ International	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	53 contacts →
	Exact match “WE ARE SHJ INTERNATIONAL “Changing the very Definitions of Great Service.” SHJ International is a venture of hard working and exponentially talented personnel with a diverse range…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	Alokab Consulting	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	42 contacts →
	Exact match “Alokab is a leading consulting company.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10	Gunnip & Company Cpas	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	40 contacts →
	Exact match “Gunnip & Company LLP, Certified Public Accountants and Consultants, is a Delaware firm serving Delaware, Pennsylvania, New Jersey and Maryland with highly personalized and…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11	JARS	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	11-50	34 contacts →
	Exact match “JARS is a multi-disciplinary consulting firm that supports businesses with complete financial and legal advisory and HNIs with wealth and treasury management.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12	Accroid INC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	33 contacts →
	Exact match “Accroid Inc is a nationwide employment and service provider committed to enabling individuals.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	Versalign INC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	29 contacts →
	Exact match “Versalign delivers effective, innovative technology and consultative solutions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14	Management Outsourcing Services	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	23 contacts →
	Exact match “Management Outsourcing Services is a back office multinational company which decentralizes administrative, financial, accounting and marketing activities for entities of all types…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	Riversedge Advisors, LLC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	11-50	22 contacts →
	Exact match “RiversEdge Advisors is an independent, award-winning Investment advisory firm founded in Wilmington, DE in 2012.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16	Market Edge	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	11-50	21 contacts →
	Exact match “Market Edge provides consulting and management development services in the areas of strategy, marketing, sales and innovation.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17	RED Bike Advisors	Exact match	Wilmington, NC, United StatesHQ recorded Sep 23, 2026	11-50	21 contacts →
	Exact match “Red Bike Advisors is on a mission to help small business owners simplify, streamline, and save with “Know Your Numbers” financial and tax insights.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18	WGA Advisors, INC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	1,001-5,000	18 contacts →
	Exact match “At WGA Advisors, we help organizations grow, inspire, and achieve results that matter.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19	Corient Business Solutions INC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	201-500	15 contacts →
	Exact match “Corient Business Solutions LLC is a leading Outsourcing Company based out of Delaware, United States.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20	Even & ODD Minds LLC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	51-200	13 contacts →
	Exact match “Even & Odd Minds is a talent-driven consulting firm providing individual consultants, project teams, and strategic outsourcing services to clients in a wide range of industries.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21	Wheeler Wolfenden And Dwares, PAS	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	11-50	11 contacts →
	Exact match “At Wheeler Wolfenden and Dwares, CPAs, our first priority is you.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22	Williams Houck & Company	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	11-50	11 contacts →
	Exact match “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’…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23	R.A. Cohen Consulting	Exact match	Wilmington, NC, United StatesHQ recorded Sep 23, 2026	1-10	11 contacts →
	Exact match “R.A.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24	Masonboro Advisors	Exact match	Wilmington, NC, United StatesHQ recorded Sep 23, 2026	1-10	9 contacts →
	Exact match “With 140+ years of combined experience, our team at Masonboro Advisors is ready to tackle your financial needs at every stage of life.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25	Montesino Associates	Exact match	Wilmington, DE, United StatesHQ recorded Sep 23, 2026	11-50	9 contacts →
	Exact match “Montesino Associates is a consultancy and advisory firm, headquartered in Wilmington, Delaware and an operational presence in the United States, Latin America, United Kingdom…” Recorded in the RevenueBase company graph · Sep 23, 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 “advisory and outsourcing services”. 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 25 of 140 advisory and outsourcing services based in Wilmington, United States

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Advisory and outsourcing services based in Wilmington, United States at a glance

As of Sep 23, 2026

45.4%Verified-email coverage

24.6Average contacts per company

11-50Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Wilmington, so it is reported there. Company counts and contact totals on this page are exact for Wilmington, over 140 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 Wilmington, United States whose business descriptions match “advisory and outsourcing services” 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 1,566 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 23, 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.

Advisory and outsourcing services 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 “advisory and outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many advisory and outsourcing services are there based in Wilmington, United States?

RevenueBase identified 140 company matches for advisory and outsourcing services associated with Wilmington, 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 Siegfried Group 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 advisory and outsourcing services?

New York leads the United States with 1,947 company records, followed by Houston (804) and Chicago (737). Wilmington has 140.

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 1,566 professional contacts with verified work emails tracked across these 140 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 23, 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.