Company lists · Data refreshed October 2026

Top 25 Lean consulting firms based in Chicago, United States

Name: Lean consulting firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 79 companies tracked

RevenueBase identified 79 company matches for lean consulting firms associated with Chicago, United States as of October 2026 and tracks 1,174 professional contacts across them, including 476 with verified work emails. Across the United States, New York is the largest hub for this category (113 companies); Chicago has 79.

This list covers company matches for lean consulting firms 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 October 1, 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 Oct 1, 2026 How this list was built

79Companies

1,174Contacts tracked

476Verified emails

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The 25 largest lean consulting firms based in Chicago, United States

Ranked by team size

Top 25 of 79 company matches for lean consulting firms based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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	DLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	201-500	546 contacts →
	Exact match “DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Skender	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	201-500	275 contacts →
	Exact match “The premier construction experience.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Voyage Advisory	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	33 contacts →
	Exact match “Voyage’s team of management consultants work side-by-side with leaders to achieve their top objectives and solve their toughest problems.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Sagin, LLC	Exact match	Chicago, United StatesHQ recorded Oct 1, 2026	51-200	13 contacts →
	Exact match “We help companies grow, change and create measurable results.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Proper Consulting Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	12 contacts →
	Exact match “Proper leverages its expertise, data analytics, and market intelligence to identify cost reduction opportunities, and then partners with its clients to implement those…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Gillum Strategy Partners	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	10 contacts →
	Exact match “Gillum Strategy Partners is a boutique management consulting firm with a focus on the creation and execution of strategies that deliver demonstrable value.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Vitalizing Business Solutions INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	7 contacts →
	Exact match “Vitalizing Business Solutions offers a wide range of consulting services with the necessary tools and expertise to help grow your business.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Treasury Advisors Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	6 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 · Oct 1, 2026 · View company records in RevenueBase
9	Archer NSG	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	5 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 · Oct 1, 2026 · View company records in RevenueBase
10	Kairos Worldwide	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	5 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 · Oct 1, 2026 · View company records in RevenueBase
11	The Systems Effect	Exact match	Chicago, United StatesHQ recorded Oct 1, 2026	11-50	4 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 · Oct 1, 2026 · View company records in RevenueBase
12	Coleman Group Consulting, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	4 contacts →
	Exact match “Coleman Group is a management consulting firm with specific expertise in strategic sourcing, which helps organizations create savings and improve operations.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Chelwood Consulting Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “Chelwood Consulting Group specializes in Business Consulting for manufacturers, warehouses and distributors.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Cameo Consulting	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	4 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 · Oct 1, 2026 · View company records in RevenueBase
15	BEN Jacobson Consultants	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	4 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 · Oct 1, 2026 · View company records in RevenueBase
16	Tenet Consulting	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	3 contacts →
	Exact match “Tenet Consulting is a Chicago based Management Consulting firm that focuses on principal based consulting in areas of Strategic Sourcing, Logistics, and Operational Excellence.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Arcy Adele	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	3 contacts →
	Exact match “We are a tech and operations consulting agency- Now operating a CEO Quick Launch Our company’s competitive edge is our combination of sales strategy, supply chain/operations, and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	JLEAN	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “We are the United States’ most experienced practitioners of the Lean method.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	DNA Consulting Group, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “We help companies become more productive.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	S.A.I.D. Strategy Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “S.A.I.D.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Business Works Project Management	Exact match	Chicago, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “Business Strategy, development, six sigma solutions, process control, and project management governance oversight consulting company.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Unified Works, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Optimization Advisers	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	1 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 · Oct 1, 2026 · View company records in RevenueBase
24	Racine Avenue, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	1 contacts →
	Exact match “Our goal is to build and provide a program through process and procedures that will improve internal and external measures.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Greengranite Solutions	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	1 contacts →
	Exact match “I have over 28 years leadership experience, the past 15 at the executive level.” Recorded in the RevenueBase company graph · Oct 1, 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 “lean consulting firms”. 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 79 lean consulting firms based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 476 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Lean consulting firms based in Chicago, United States at a glance

As of Oct 1, 2026

40.5%Verified-email coverage

14.9Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 79 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 consulting firms” 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 476 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 October 1, 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.

Lean consulting firms 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 “lean consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 79 company matches for lean consulting firms associated with Chicago, United States as of October 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?

DLC 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 consulting firms?

New York leads the United States with 113 company records, followed by Atlanta (100) and Houston (99). Chicago has 79.

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 476 professional contacts with verified work emails tracked across these 79 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 October 1, 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.