Company lists · Data refreshed September 2026

Top 17 Lean consultants based in Chicago, United States

RevenueBase identified 43 company matches for lean consultants associated with Chicago, United States as of September 2026 and tracks 443 professional contacts across them, including 255 with verified work emails. Across the United States, Atlanta is the largest hub for this category (72 companies); Chicago has 43.

This list covers company matches for lean consultants 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
43Companies
443Contacts tracked
255Verified emails
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The 17 largest lean consultants based in Chicago, United States

Ranked by team size
Top 17 of 43 company matches for lean consultants 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, 2026201-500275 contacts →

Exact match

“The premier construction experience.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchChicago, United StatesHQ recorded Sep 21, 202651-20013 contacts →

Exact match

“We help companies grow, change and create measurable results.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-106 contacts →

Exact match

“With decades of experience in consulting, TAG has developed a wide range of capabilities to support your needs.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchChicago, IL, United StatesHQ recorded Sep 21, 202611-505 contacts →

Exact match

“Archer’s consulting teams work closely with law firm and fortune 500 COOs, CIOs and practice managers to design practical, effective processes and support solutions that provide…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-105 contacts →

Exact match

“Kairos Worldwide is a proven leader in process engineering consulting and is dedicated to reducing waste and enabling robust, sustainable growth for all types of clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchChicago, United StatesHQ recorded Sep 21, 202611-504 contacts →

Exact match

“The System Effect helps businesses streamline operations, improve efficiency, and achieve sustainable growth through process mapping, workflow optimization, and creating clear…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-104 contacts →

Exact match

“Chelwood Consulting Group specializes in Business Consulting for manufacturers, warehouses and distributors.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-104 contacts →

Exact match

“Ben Jacobson Consultants was founded in 2001 and has been helping businesses operate with maximum efficiency ever since.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-104 contacts →

Exact match

“We understand that each client faces unique challenges that do not fit a “cookie-cutter” solution.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-102 contacts →

Exact match

“We are the United States’ most experienced practitioners of the Lean method.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-102 contacts →

Exact match

“We help companies become more productive.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchChicago, IL, United StatesHQ recorded Sep 21, 202611-501 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-101 contacts →

Exact match

“After over a decade of analyzing & managing projects, leading programs and optimizing processes, continued patterns of inefficiency and opportunities for improvement were observed.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-101 contacts →

Exact match

“I have over 28 years leadership experience, the past 15 at the executive level.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-101 contacts →

Exact match

“Rubin Solutions is a leader in profitability, diversity, and operations excellence for professional service firms.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-101 contacts →

Exact match

“The team at No Cover, LLC specializes in consulting services focused on helping companies improve their productivity and profitability levels through innovation (or sometimes just…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchChicago, IL, United StatesHQ recorded Sep 21, 20261-101 contacts →

Exact match

Recorded description not available.

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

Showing 17 of 43 lean consultants based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 255 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Lean consultants based in Chicago, United States at a glance

As of Sep 21, 2026
57.6%Verified-email coverage
10.3Average contacts per company
1-10Median size (employees)
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
31
11-50
8
51-200
2
201-500
1
501-1,000
1

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 43 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 “lean consultants” 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 255 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 “lean consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many lean consultants are there based in Chicago, United States?

RevenueBase identified 43 company matches for lean consultants 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?

Skender 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 lean consultants?

Atlanta leads the United States with 72 company records, followed by New York (64) and Houston (60). Chicago has 43.

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 255 professional contacts with verified work emails tracked across these 43 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.

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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.