Company lists · Data refreshed September 2026

Top 25 Business advisory and consulting firms based in Indianapolis, United States

RevenueBase identified 141 business advisory and consulting firms headquartered in Indianapolis, United States as of September 2026 and tracks 1,647 professional contacts across them, including 910 with verified work emails. Across the United States, New York is the largest hub for this category (1,895 companies); Indianapolis has 141.

This list covers business advisory and consulting firms headquartered in Indianapolis, 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 23, 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 23, 2026 86% judged on-target in blind review
141Companies
1,647Contacts tracked
910Verified emails
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The 25 largest business advisory and consulting firms based in Indianapolis, United States

Ranked by team size
Top 25 of 141 business advisory and consulting firms based in Indianapolis, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business advisory and consulting 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
1Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 2026501-1,000788 contacts →

Partial evidence

“KSM (Katz, Sapper & Miller) is a nationally recognized advisory, tax, and audit firm.”

Source: RevenueBase Database · checked Sep 23, 2026
2Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202651-200122 contacts →

Partial evidence

“eimagine is a full-service consulting firm headquartered in Indiana that partners with clients to create measurable business value through innovative IT solutions.”

Source: RevenueBase Database · checked Sep 23, 2026
3Partial evidenceIndianapolis, United StatesHQ checked Sep 23, 202651-20099 contacts →

Partial evidence

“Engaging Solutions is a multi-faceted management consulting firm with the personnel and resources to accomplish everything from high level management and auditing to ground-level…”

Source: RevenueBase Database · checked Sep 23, 2026
4Strong evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202651-20083 contacts →

Strong evidence

“BGBC, a Springline Company is a full-service, Indianapolis-based advisory firm offering assurance, tax, and consulting services.”

Source: RevenueBase Database · checked Sep 23, 2026
5Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 2026201-50041 contacts →

Indirect evidence

“For over 60 years, our team has been guiding clients through the critical decisions that impact their financial health.”

Source: RevenueBase Database · checked Sep 23, 2026
6Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5035 contacts →

Partial evidence

“Agresta, Storms & O’Leary is a full service accounting firm offering assurance, tax, and business consulting services, including bank and finance consulting, business valuations…”

Source: RevenueBase Database · checked Sep 23, 2026
7Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5030 contacts →

Partial evidence

“London Witte is a leading certified public accounting and consulting firm dedicated to helping clients maximize their full potential.”

Source: RevenueBase Database · checked Sep 23, 2026
8Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5021 contacts →

Indirect evidence

“You need to be able to make the most of everything you've got, and pulling that off takes more than people expect.”

Source: RevenueBase Database · checked Sep 23, 2026
9Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5019 contacts →

Indirect evidence

“Many business owners believe that the total on a balance sheet tells them everything they need to know.”

Source: RevenueBase Database · checked Sep 23, 2026
10Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5018 contacts →

Indirect evidence

“At Greenwalt, we want your business to grow.”

Source: RevenueBase Database · checked Sep 23, 2026
11Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5017 contacts →

Partial evidence

“We provide high level reporting and advisory services without the commitment and expense of a full-time high level CFO.”

Source: RevenueBase Database · checked Sep 23, 2026
12Strong evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5014 contacts →

Strong evidence

“CSi Advisory Services, a division of HUB Retirement & Private Wealth, is a retirement plan consulting firm focusing on participant outcomes, investment outcomes and financial…”

Source: RevenueBase Database · checked Sep 23, 2026
13Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5013 contacts →

Indirect evidence

“We are passionate about helping small businesses go Beyond Expectations on their journey to success by bringing clarity and confidence!”

Source: RevenueBase Database · checked Sep 23, 2026
14Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5012 contacts →

Indirect evidence

“CG CPAs.”

Source: RevenueBase Database · checked Sep 23, 2026
15Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202651-20012 contacts →

Indirect evidence

“Axon connects business professionals with industry professionals, who can provide them market insights, at an exceptional 96% satisfaction rate from clients.”

Source: RevenueBase Database · checked Sep 23, 2026
16Indirect evidenceIndianapolis, United StatesHQ checked Sep 23, 202611-5011 contacts →

Indirect evidence

“SweetWork partners with companies to grow their revenue and grow their teams-so leaders and employees enjoy better work and more life.”

Source: RevenueBase Database · checked Sep 23, 2026
17Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-5011 contacts →

Indirect evidence

“Our services are designed to provide more than financial oversight-they deliver strategic value.”

Source: RevenueBase Database · checked Sep 23, 2026
18Strong evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 20261-108 contacts →

Strong evidence

“ABA Advisors, LLC is a national brokerage and consulting firm specializing in the sale of accounting and tax practices.”

Source: RevenueBase Database · checked Sep 23, 2026
19Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 20261-107 contacts →

Partial evidence

“BEST is a retained executive search and business advisory firm specializing in small-to-medium-sized companies.”

Source: RevenueBase Database · checked Sep 23, 2026
20Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 20261-107 contacts →

Indirect evidence

“Whether you are approaching a family transition, committing to growth, or preparing for an exit, we can help.”

Source: RevenueBase Database · checked Sep 23, 2026
21Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-506 contacts →

Partial evidence

“At Charter Advisory we assist our clients in a variety of areas.”

Source: RevenueBase Database · checked Sep 23, 2026
22Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-506 contacts →

Partial evidence

“Argona Partners is a globally recognized Strategy Consulting and Startup Development firm dedicated to shaping the future by empowering entrepreneurs and founders to achieve…”

Source: RevenueBase Database · checked Sep 23, 2026
23Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 20261-106 contacts →

Indirect evidence

“The hudson group, l.l.c.”

Source: RevenueBase Database · checked Sep 23, 2026
24Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 202611-505 contacts →

Indirect evidence

“TeamMIS was founded in 1998 with a very clear focus – to serve our partners, not just clients, ethically, morally and professionally.”

Source: RevenueBase Database · checked Sep 23, 2026
25Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 23, 20261-105 contacts →

Indirect evidence

“We are different.”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 25 of 141 business advisory and consulting firms based in Indianapolis, United States

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Business advisory and consulting firms based in Indianapolis, United States at a glance

As of Sep 23, 2026
55.3%Verified-email coverage
11.7Average contacts per company
1-10Median size (employees)
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
101
11-50
31
51-200
7
201-500
1
501-1,000
1

Email recency for this list is measured across the whole United States list rather than for Indianapolis, so it is reported there. Company counts and contact totals on this page are exact for Indianapolis, over 141 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 business advisory and consulting 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 Indianapolis, United States whose own description of what they do matches “business advisory and consulting 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 business advisory and consulting 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 business advisory and consulting firms, and records with no verified work email. Companies headquartered outside Indianapolis 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, 910 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 23, 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.

Business advisory and consulting 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 business advisory and consulting 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 business advisory and consulting firms are there based in Indianapolis, United States?

RevenueBase identified 141 business advisory and consulting firms headquartered in Indianapolis, 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?

KSM Katz, Sapper & Miller, headquartered in Indianapolis, tops this list with the largest team on record.

Which city in the United States has the most business advisory and consulting firms?

New York leads the United States with 1,895 headquartered companies, followed by Atlanta (839) and Chicago (826). Indianapolis has 141.

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 910 verified decision-maker contacts tracked across these 141 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 23, 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.