Company lists · Data refreshed September 2026

Top 14 Facility maintenance companies based in Wilmington, United States

Name: Facility maintenance companies based in Wilmington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 25 companies tracked

RevenueBase identified 25 company matches for facility maintenance companies associated with Wilmington, United States as of September 2026 and tracks 639 professional contacts across them, including 152 with verified work emails. Across the United States, Houston is the largest hub for this category (146 companies); Wilmington has 25.

This list covers company matches for facility maintenance companies associated with Wilmington, 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 20, 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 20, 2026 How this list was built

25Companies

639Contacts tracked

152Verified emails

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The 14 largest facility maintenance companies based in Wilmington, United States

Ranked by team size

Top 14 of 25 company matches for facility maintenance companies based in Wilmington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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	Horizon Services, LLC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 20, 2026	501-1,000	448 contacts →
	Exact match “Horizon Services is the premier heating, air conditioning, plumbing, drain cleaning and sewer services company in Delaware (New Castle County & Kent County), Pennsylvania…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	ARC Mechanical	Exact match	Wilmington, MA, United StatesHQ recorded Sep 20, 2026	51-200	64 contacts →
	Exact match “Founded in 1996, ARC Mechanical offers a full range of commercial and industrial HVAC/R services, including 24/7 emergency response.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Breen & Sullivan Mechanical Services, INC	Exact match	Wilmington, MA, United StatesHQ recorded Sep 20, 2026	51-200	26 contacts →
	Exact match “Breen & Sullivan Mechanical Services provides electrical, plumbing, and HVAC services to commercial clients throughout the Boston area.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Ralph G Degli Obizzi & Sons	Exact match	Wilmington, DE, United StatesHQ recorded Sep 20, 2026	11-50	17 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	O'brien Service Company	Exact match	Wilmington, NC, United StatesHQ recorded Sep 20, 2026	51-200	16 contacts →
	Exact match “We are a locally owned & operated business established in 1981 to provide a complete range of heating & air conditioning services, from installation to repair & maintenance.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Hvac Starplus	Exact match	Wilmington, NC, United StatesHQ recorded Sep 20, 2026	11-50	11 contacts →
	Exact match “HVAC StarPlus is a full-service commercial heating, ventilation, air conditioning and refrigeration service contractor providing our clients with exceptional customer service…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	I D Griffith INC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 20, 2026	51-200	10 contacts →
	Exact match “I D Griffith Inc is Mechanical Contracting company located outside the City of Wilmington.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Asset Management Alliance	Exact match	Wilmington, DE, United StatesHQ recorded Sep 20, 2026	11-50	9 contacts →
	Exact match “Asset Management Alliance is commercial property management company based out of Delaware Ave, Wilmington, Delaware, United States.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Clear Water Plumbing INC	Exact match	Wilmington, NC, United StatesHQ recorded Sep 20, 2026	1-10	7 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Inline Mechanical LLC	Exact match	Wilmington, MA, United StatesHQ recorded Sep 20, 2026	11-50	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Sherman Crane	Exact match	Wilmington, MA, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match “Sherman Crane is a facilities services company based out of 140 West St, Wilmington, Massachusetts, United States.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Calvert Comfort	Exact match	Wilmington, DE, United StatesHQ recorded Sep 20, 2026	51-200	1 contacts →
	Exact match “At Benjamin Franklin Plumbing® of Wilmington DE, we understand the importance of treating our customers right.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	American Seaboard Exteriors, INC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 20, 2026	11-50	1 contacts →
	Exact match “American Seaboard was founded in 1977 and provides commercial building preventative maintenance and reparative services in Delaware, New Jersey, Pennsylvania and Maryland.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Handyman Services, A Division Of Christy Enterprises	Exact match	Wilmington, NC, United StatesHQ recorded Sep 20, 2026	1-10	1 contacts →
	Exact match “Welcome to Handyman Services, a division of Christy Enterprises – a boutique company in Wilmington, NC, dedicated to transforming properties with quality craftsmanship in home…” Recorded in the RevenueBase company graph · Sep 20, 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 “facility maintenance companies”. 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 14 of 25 facility maintenance companies based in Wilmington, United States

See the full list, filter by size, metro and specialty, and access 152 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Facility maintenance companies based in Wilmington, United States at a glance

As of Sep 20, 2026

23.8%Verified-email coverage

25.6Average contacts per company

11-50Median size (employees)

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole United States list rather than for Wilmington, so it is reported there. Company counts and contact totals on this page are exact for Wilmington, over 25 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 Wilmington, United States whose business descriptions match “facility maintenance companies” 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 152 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 20, 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.

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

How many facility maintenance companies are there based in Wilmington, United States?

RevenueBase identified 25 company matches for facility maintenance companies associated with Wilmington, 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?

Horizon Services, LLC 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 facility maintenance companies?

Houston leads the United States with 146 company records, followed by New York (142) and Dallas (78). Wilmington has 25.

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 152 professional contacts with verified work emails tracked across these 25 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 20, 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.