Company lists · Data refreshed November 2026

Top 24 Outsourcing and advisory services based in the United States

Name: Outsourcing and advisory services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 15,853 companies tracked

RevenueBase identified 15,853 company matches for outsourcing and advisory services associated with the United States as of November 2026 and tracks 478,492 professional contacts across them, including 150,742 with verified work emails. New York is the largest hub.

This list covers company matches for outsourcing and advisory services associated with the 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 November 6, 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 Nov 6, 2026 How this list was built

15,853Companies

478,492Contacts tracked

150,742Verified emails

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The 24 largest outsourcing and advisory services based in the United States

Ranked by team size

Top 24 of 15,853 company matches for outsourcing and advisory services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	EXL	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	46,962 contacts →
	Exact match “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Teksystems	Exact match	Hanover, MD, United StatesHQ recorded Nov 6, 2026	10001+	27,308 contacts →
	Exact match “We’re TEKsystems and TEKsystems Global Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Insight Global	Exact match	Atlanta, FL, United StatesHQ recorded Nov 6, 2026	n/a	17,957 contacts →
	Exact match “Insight Global is an international talent and consulting company that delivers business outcomes in an ever-changing world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	CLA Cliftonlarsonallen	Exact match	Othello, WA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	9,936 contacts →
	Exact match “CLA exists to create opportunities for our clients, our people, and our communities through industry-focused wealth advisory, outsourcing, audit, tax, and consulting services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	HTC Global Services	Exact match	Troy, MI, United StatesHQ recorded Nov 6, 2026	10001+	9,413 contacts →
	Exact match “HTC Global Services Inc, founded in 1990, headquartered in Troy, Michigan, is a global provider of Information Technology and Business Process Services and Solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	CBIZ	Exact match	Independence, MO, United StatesHQ recorded Nov 6, 2026	10001+	6,622 contacts →
	Exact match “CBIZ, Inc.(NYSE: CBZ) is a leading professional services advisor to middle-market businesses nationwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Xceedance	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,865 contacts →
	Exact match “Xceedance provides strategic operations support, technology, and data services to drive efficiencies for insurance organizations worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Integreon	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,314 contacts →
	Exact match “Integreon is a trusted provider of legal, creative and business outsourced services to corporations and law firms worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Williams LEA	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	4,095 contacts →
	Exact match “Williams Lea is the leading global provider of tech-enabled business and marketing services helping clients manage and transform processes through resilient, scalable 24/7…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	RGP	Exact match	Dallas, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,958 contacts →
	Exact match “RGP (Nasdaq: RGP) has been redefining professional services for 30 years by closing the gap between advice and execution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Withum	Exact match	Princeton, NJ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,484 contacts →
	Exact match “Withum is a forward-thinking, technology-driven advisory and accounting firm, helping clients to Be in a Position of Strength in today’s modern business landscape.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Wipfli	Exact match	Milwaukee, WI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,201 contacts →
	Exact match “Always advancing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Enshored	Exact match	Signal Hill, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,906 contacts →
	Exact match “Enshored powers the growth of ambitious high growth companies by delivering and managing teams of elite outsourcers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Oxford Global Resources	Exact match	Beverly, OH, United StatesHQ recorded Nov 6, 2026	501-1,000	2,734 contacts →
	Exact match “Oxford Global Resources is a global professional services and consulting partner trusted by leading industry organizations to solve complex challenges and deliver outcomes at…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Astreya	Exact match	San Jose, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,524 contacts →
	Exact match “Astreya is the leading IT solutions provider for some of the world's most recognizable and innovative organizations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	West Monroe	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,370 contacts →
	Exact match “West Monroe is a global business and technology consulting firm passionate about creating value for our clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Thoughtfocus	Exact match	Mckinney, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,266 contacts →
	Exact match “ThoughtFocus, headquartered in the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Gyansys INC	Exact match	Carmel, IN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,961 contacts →
	Exact match “Founded in 2005, GyanSys is a leading global system integrator company supporting enterprise customers worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	SLK Global Solutions	Exact match	TX, United StatesHQ recorded Nov 6, 2026	10001+	1,779 contacts →
	Exact match “Coforge Business Process Solutions (or Coforge BPS) offers digital platforms and solutions to multiple industries, including the financial services industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	RDI Corporation	Exact match	Cincinnati, OH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,615 contacts →
	Exact match “At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Wicresoft	Exact match	Bellevue, WA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,519 contacts →
	Exact match “Wicresoft has offices worldwide, providing diverse services across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Crosscountry Consulting	Exact match	Mclean, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,423 contacts →
	Exact match “CrossCountry Consulting is a leading provider of specialized advisory and technology solutions across finance, accounting, risk, and operations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Rehmann	Exact match	Troy, OH, United StatesHQ recorded Nov 6, 2026	501-1,000	1,409 contacts →
	Exact match “Rehmann is a professional advisory firm that provides accounting and assurance, business solutions and outsourcing, specialized consulting, and wealth management services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Broadpath	Exact match	Tucson, AZ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,405 contacts →
	Exact match “BroadPath provides transformational outsourcing and managed services powered by our one-of-a-kind, 100% remote business model.” Recorded in the RevenueBase company graph · Nov 6, 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 “outsourcing and advisory 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 24 of 15,853 outsourcing and advisory services based in the United States

See the full list, filter by size, metro and specialty, and access 150,742 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outsourcing and advisory services based in the United States at a glance

As of Nov 6, 2026

31.5%Verified-email coverage

30.2Average contacts per company

1-10Median size (employees)

5.6%Largest-city concentration · New York

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

9,986

11-50

3,655

51-200

1,459

201-500

428

501-1,000

140

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 15,853 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 the United States whose business descriptions match “outsourcing and advisory 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 150,742 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 November 6, 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.

Outsourcing and advisory services by metro

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

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

RevenueBase identified 15,853 company matches for outsourcing and advisory services associated with the United States as of November 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?

EXL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most outsourcing and advisory services?

New York leads with 893 company records, followed by Houston (391) and Atlanta (338).

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 150,742 professional contacts with verified work emails tracked across these 15,853 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 November 6, 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.