Company lists · Data refreshed October 2026

Top 15 Industrial facility maintenance contractors based in Indianapolis, United States

Name: Industrial facility maintenance contractors based in Indianapolis, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 33 companies tracked

RevenueBase identified 33 company matches for industrial facility maintenance contractors associated with Indianapolis, United States as of October 2026 and tracks 501 professional contacts across them, including 172 with verified work emails. Across the United States, Houston is the largest hub for this category (107 companies); Indianapolis has 33.

This list covers company matches for industrial facility maintenance contractors associated with Indianapolis, 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 16, 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 16, 2026 How this list was built

33Companies

501Contacts tracked

172Verified emails

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The 15 largest industrial facility maintenance contractors based in Indianapolis, United States

Ranked by team size

Top 15 of 33 company matches for industrial facility maintenance contractors based in Indianapolis, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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	Horner Industrial Group	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	201-500	107 contacts →
	Exact match “For over half a century, Horner Industrial Group has been helping to power your business with industry leading service, quality and value by providing excellence in electrical…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2	Grand Industrial	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	51-200	54 contacts →
	Exact match “Grand Industrial is a privately-held industrial maintenance and contracting company that can provide a wide variety of services to our clients in the food processing, product…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3	The Industrial Service Group	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	1,001-5,000	53 contacts →
	Exact match “As facilities continue to age, outsourcing of critical-to-process equipment service is expanding.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4	Koorsen Environmental Services	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	19 contacts →
	Exact match “At Koorsen Environmental Services, we are committed to providing exhaustive, best practice industrial cleaning solutions that help our customers keep their facilities safe…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5	Connor Painting	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	15 contacts →
	Exact match “Founded in 1979, Connor Painting is a certified woman-owned contractor and a trusted partner for commercial, industrial, and institutional facilities across Indiana.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6	Godby Heating Plumbing Electrical	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	51-200	9 contacts →
	Exact match “Every business needs a list of trusted maintenance professionals: a heating and air conditioning technician, an electrician and a plumber.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7	Hutson Industrial Services	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	8 contacts →
	Exact match “Hutson Industrial Services is a Mechanical Contractor located in Indianapolis, Indiana, United States.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8	General Piping INC	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	8 contacts →
	Exact match “Located just west of Indianapolis, General Piping, Inc, mechanical contractors, installs HVAC (heating and cooling) systems and related ductwork as well as plumbing, piping and…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9	MEP Holding Company	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	501-1,000	7 contacts →
	Exact match “MEP HOLDING CO, LLC is a construction company based out of 2350 N SHADELAND AVE, Indianapolis, Indiana, United States.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10	Deaton's Mechanical, INC	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	6 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
11	A&r Erectors INC	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	5 contacts →
	Exact match “Nationwide since 1991” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12	Ellis Mechanical INC	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13	AOK Indy Management Company	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	3 contacts →
	Exact match “For over 15 years, the AOK Indy Management Company has proudly served Indianapolis and its surrounding areas as a locally owned, family-operated business.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
14	Jcos INC	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15	Delta Services, INC	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 16, 2026	11-50	2 contacts →
	Exact match “For over 20 years DELTA Services has been serving customer locations throughout the State of Indiana.” Recorded in the RevenueBase company graph · Oct 16, 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 “industrial facility maintenance contractors”. 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 15 of 33 industrial facility maintenance contractors based in Indianapolis, United States

See the full list, filter by size, metro and specialty, and access 172 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial facility maintenance contractors based in Indianapolis, United States at a glance

As of Oct 16, 2026

34.3%Verified-email coverage

15.2Average contacts per company

11-50Median size (employees)

Oct 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 33 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 Indianapolis, United States whose business descriptions match “industrial facility maintenance contractors” 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 172 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 16, 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.

Industrial facility maintenance contractors 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 “industrial facility maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial facility maintenance contractors are there based in Indianapolis, United States?

RevenueBase identified 33 company matches for industrial facility maintenance contractors associated with Indianapolis, 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?

Horner Industrial Group 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 industrial facility maintenance contractors?

Houston leads the United States with 107 company records, followed by New York (62) and Atlanta (45). Indianapolis has 33.

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 172 professional contacts with verified work emails tracked across these 33 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 16, 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.