Company lists · Data refreshed September 2026
Top 25 Lean consulting companies based in Chicago, United States
RevenueBase identified 72 lean consulting companies headquartered in Chicago, United States as of September 2026 and tracks 627 professional contacts across them, including 310 with verified work emails. Atlanta is the largest hub.
This list covers lean consulting companies headquartered in Chicago, 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 21, 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.
The 25 largest lean consulting companies based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 275 contacts → | ||||
Indirect evidence “The premier construction experience.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 33 contacts → | ||||
Indirect evidence “Voyage’s team of management consultants work side-by-side with leaders to achieve their top objectives and solve their toughest problems.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 13 contacts → | ||||
Indirect evidence “We help companies grow, change and create measurable results.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 7 contacts → | ||||
Partial evidence “Zenza Consulting focuses on innovation and execution at the intersection of strategy, operations, technology, data, analytics, talent and finance to help you identify and unlock…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 7 contacts → | ||||
Partial evidence “Vitalizing Business Solutions offers a wide range of consulting services with the necessary tools and expertise to help grow your business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 6 contacts → | ||||
Partial evidence “With decades of experience in consulting, TAG has developed a wide range of capabilities to support your needs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 6 contacts → | ||||
Indirect evidence “ENHANCE International is a management consultancy focused on achieving measurable and sustainable results.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Indirect evidence “Helping companies and people become better versions of themselves through marketing strategy, messaging, and focusing on constant improvement to people, process, product, and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 5 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 4 contacts → | ||||
Indirect evidence “The System Effect helps businesses streamline operations, improve efficiency, and achieve sustainable growth through process mapping, workflow optimization, and creating clear…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4 contacts → | ||||
Partial evidence “Coleman Group is a management consulting firm with specific expertise in strategic sourcing, which helps organizations create savings and improve operations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Partial evidence “Chelwood Consulting Group specializes in Business Consulting for manufacturers, warehouses and distributors.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Indirect evidence “Ben Jacobson Consultants was founded in 2001 and has been helping businesses operate with maximum efficiency ever since.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Indirect evidence “We understand that each client faces unique challenges that do not fit a “cookie-cutter” solution.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Partial evidence “Tenet Consulting is a Chicago based Management Consulting firm that focuses on principal based consulting in areas of Strategic Sourcing, Logistics, and Operational Excellence.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Partial evidence “We are the United States’ most experienced practitioners of the Lean method.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Indirect evidence “We help companies become more productive.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence “S.A.I.D.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Indirect evidence “After over a decade of analyzing & managing projects, leading programs and optimizing processes, continued patterns of inefficiency and opportunities for improvement were observed.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Indirect evidence “Our goal is to build and provide a program through process and procedures that will improve internal and external measures.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “I have over 28 years leadership experience, the past 15 at the executive level.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Partial evidence “Oxford Operations Group is a consulting firm that leverages our years of experience from Fortune 100 companies to help small to mid-size organizations succeed through…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: lean consulting companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names lean consulting companies.
- Partial evidence
- Its own public description names part of lean consulting companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name lean consulting companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 72 lean consulting companies based in Chicago, United States
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Lean consulting companies based in Chicago, United States at a glance
As of Sep 21, 2026Companies by employee count
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 72 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 lean consulting companies, 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 Chicago, United States whose own description of what they do matches “lean consulting companies”. 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 lean consulting companies), 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 lean consulting companies, and records with no verified work email. Companies headquartered outside Chicago 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, 310 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 21, 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.
Lean consulting companies by metro in the United States
- Lean consulting companies in Atlanta94
- Lean consulting companies in Houston92
- Lean consulting companies in New York76
- Lean consulting companies in Chicago72
- Lean consulting companies in Dallas59
- Lean consulting companies in Los Angeles52
- Lean consulting companies in Austin51
- Lean consulting companies in Denver50
- Lean consulting companies in Washington44
- Lean consulting companies in Miami43
- Lean consulting companies in Minneapolis39
- Lean consulting companies in Boston35
- Lean consulting companies in Charlotte35
- Lean consulting companies in Seattle34
- Lean consulting companies in San Antonio33
- Lean consulting companies in Phoenix32
- Lean consulting companies in Orlando27
- Lean consulting companies in San Diego27
- Lean consulting companies in Cincinnati25
- Lean consulting companies in Portland25
- Lean consulting companies in San Francisco25
- Lean consulting companies in Tampa25
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 lean consulting companies, 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 lean consulting companies are there based in Chicago, United States?
RevenueBase identified 72 lean consulting companies headquartered in Chicago, 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?
Skender, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most lean consulting companies?
Atlanta leads with 94 headquartered companies, followed by Houston (92) and New York (76).
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 310 verified decision-maker contacts tracked across these 72 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 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 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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