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Company lists · Data refreshed September 2026

Top 13 Consultancy firms based in Naperville, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 39 companies tracked

RevenueBase identified 39 consultancy firms headquartered in Naperville, United States as of September 2026 and tracks 208 professional contacts across them, including 73 with verified work emails. New York is the largest hub.

This list covers consultancy firms headquartered in Naperville, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 24, 2026 86% judged on-target in blind review
39Companies
208Contacts tracked
73Verified emails
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The 13 largest consultancy firms based in Naperville, United States

Ranked by team size
Top 13 of 39 consultancy firms based in Naperville, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to consultancy firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1
Beaird Group
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 202651-20052 contacts →

Indirect evidence

“Experience the Beaird Group difference!”

Source: RevenueBase Database · checked Sep 24, 2026
2
Talented It, INC
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 202651-20039 contacts →

Indirect evidence

“Talented IT, Inc is an MBE Certified, global business and technology consulting firm that partners with clients to achieve breakthrough performance through the intelligent use of…”

Source: RevenueBase Database · checked Sep 24, 2026
3
Ingenae, LLC
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 202651-20023 contacts →

Indirect evidence

“IngenAE is a full service architectural, engineering, and environmental consulting firm.”

Source: RevenueBase Database · checked Sep 24, 2026
4
The Seismic Group
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 202611-5013 contacts →

Indirect evidence

“We are a family of Consulting Practices The Seismic Group is a powerful blend of expertise.”

Source: RevenueBase Database · checked Sep 24, 2026
5
Pragmatium Consulting Group, INC
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 20261-105 contacts →

Indirect evidence

“Pragmatium Consulting Group, Inc, is a boutique global management consulting firm based in Chicagoland.”

Source: RevenueBase Database · checked Sep 24, 2026
6
The Ascend
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 202651-2004 contacts →

Indirect evidence

“The Ascend, founded in 2005, is a privately held, fast-growing, strategic business and technology consulting firm that creates tangible and demonstrable business value to our…”

Source: RevenueBase Database · checked Sep 24, 2026
7
Inspirant Group, A 10pearls Company
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 202611-504 contacts →

Indirect evidence

“What is an?”

Source: RevenueBase Database · checked Sep 24, 2026
8
Seismic Solutions LLC
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 202611-503 contacts →

Indirect evidence

“Seismic Solutions is Your Source of Impact™ We are a consulting firm that enables our clients to break down barriers and challenge the status quo.”

Source: RevenueBase Database · checked Sep 24, 2026
9
Breier Consulting LTD
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 20261-103 contacts →

Indirect evidence

“Breier Consulting was founded in 2012 by owner and CEO Michael Breier after a 26 year successful career as a partner in a downtown Chicago CPA firm.”

Source: RevenueBase Database · checked Sep 24, 2026
10
Graefenhain Designs
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 20261-102 contacts →

Indirect evidence

“Angela Graefenhain is a Chicagoland designer and fine artist who has been sharing her deep appreciation and mastery of art and design by creating, consulting, and teaching for…”

Source: RevenueBase Database · checked Sep 24, 2026
11
Outsourced Innovation
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 20261-102 contacts →

Indirect evidence

“Advancing an idea to solve a challenge is not easy.”

Source: RevenueBase Database · checked Sep 24, 2026
12
Novapoint Advisors
Indirect evidenceNaperville, United StatesHQ checked Sep 24, 20261-101 contacts →

Indirect evidence

“NovaPoint provides strategic consulting services to businesses, business owners, executive management and investors.”

Source: RevenueBase Database · checked Sep 24, 2026
13
BLR Research
Indirect evidenceNaperville, IL, United StatesHQ checked Sep 24, 20261-101 contacts →

Indirect evidence

“Innovation is changing how companies do things.”

Source: RevenueBase Database · checked Sep 24, 2026

Showing 13 of 39 consultancy firms based in Naperville, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 73 reachable decision-makers.

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Consultancy firms based in Naperville, United States at a glance

As of Sep 24, 2026
35.1%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
4930.8%Largest-city concentration · New York
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
7
51-200
7

Email recency for this list is measured across the whole United States list rather than for Naperville, so it is reported there. Company counts and contact totals on this page are exact for Naperville, over 39 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 consultancy firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Naperville, United States whose own description of what they do matches “consultancy firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names consultancy firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among consultancy firms, and records with no verified work email. Companies headquartered outside Naperville 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 its RevenueBase Smart Search 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, 73 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 24, 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.

Consultancy firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names consultancy firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many consultancy firms are there based in Naperville, United States?

RevenueBase identified 39 consultancy firms headquartered in Naperville, 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?

Beaird Group, headquartered in Naperville, tops this list with the largest team on record.

Which city has the most consultancy firms?

New York leads with 1923 headquartered companies, followed by Chicago (827) and Atlanta (777).

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 73 verified decision-maker contacts tracked across these 39 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 24, 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 Smart Search, 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.

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