Company lists · Data refreshed September 2026

Top 9 Outsourcing admin services based in Chicago, United States

RevenueBase identified 31 company matches for outsourcing admin services associated with Chicago, United States as of September 2026 and tracks 575 professional contacts across them, including 79 with verified work emails. Across the United States, New York is the largest hub for this category (121 companies); Chicago has 31.

This list covers company matches for outsourcing admin services associated with Chicago, 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 21, 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 21, 2026 How this list was built
31Companies
575Contacts tracked
79Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 9 largest outsourcing admin services based in Chicago, United States

Ranked by team size
Top 9 of 31 company matches for outsourcing admin services based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchChicago, IL, United StatesHQ recorded Sep 21, 2026201-500217 contacts →

Exact match

“247Digitize is an outsourcing and tech partner that optimizes and manages non-core processes so your key resources can focus on productivity and growth.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchChicago, IL, United StatesHQ recorded Sep 21, 202611-5063 contacts →

Exact match

“TeamFicient is a modern remote-staffing and virtual assistant company helping businesses operate smarter, faster, and more efficiently.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchChicago, IL, United StatesHQ recorded Sep 21, 2026201-50051 contacts →

Exact match

“Your Quiet Advantage”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchChicago, IL, United StatesHQ recorded Sep 21, 202611-5020 contacts →

Exact match

“Big Buzz Idea Group works with nonprofits and associations who want their offices to run more efficiently so they can focus on their mission and organizational growth.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchChicago, IL, United StatesHQ recorded Sep 21, 202651-20013 contacts →

Exact match

“Sidago Integrated Solutions is a full service outsourcing consultation business that provides small to large sized business solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchChicago, IL, United StatesHQ recorded Sep 21, 202611-505 contacts →

Exact match

“We provide virtual assistance ranging from catering part-time or full-time admin support, managing your emails and appointments, to running your entire operations online.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchChicago, IL, United StatesHQ recorded Sep 21, 202611-504 contacts →

Exact match

“SupportBiz is an offshore outsourcing company founded in 2019 to assist small and medium-sized businesses in the United States.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-103 contacts →

Exact match

“Remote Controller® specializes in turnkey back-office management and execution.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchChicago, United StatesHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Welcome to L'agence Executive, where we provide comprehensive solutions in virtual assistance, project management, operations, executive assistance, advertising, public relations…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 9 of 31 outsourcing admin services based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 79 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Outsourcing admin services based in Chicago, United States at a glance

As of Sep 21, 2026
13.7%Verified-email coverage
18.5Average contacts per company
1-10Median size (employees)
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
7
51-200
3
201-500
2

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 31 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 Chicago, United States whose business descriptions match “outsourcing admin 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 79 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 21, 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.

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 admin services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourcing admin services are there based in Chicago, United States?

RevenueBase identified 31 company matches for outsourcing admin services associated with Chicago, 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?

247digitize 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 outsourcing admin services?

New York leads the United States with 121 company records, followed by Houston (54) and Atlanta (51). Chicago has 31.

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 79 professional contacts with verified work emails tracked across these 31 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 31 outsourcing admin services based in Chicago, United States. Start with a free account, no credit card.

Download this list →

Related lists

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.