Company lists · Data refreshed November 2026

Top 22 Professional IT services based in Baltimore, United States

Name: Professional IT services based in Baltimore, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 43 companies tracked

RevenueBase identified 43 company matches for professional IT services associated with Baltimore, United States as of November 2026 and tracks 1,029 professional contacts across them, including 297 with verified work emails. Across the United States, New York is the largest hub for this category (558 companies); Baltimore has 43.

This list covers company matches for professional IT services associated with Baltimore, 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 November 6, 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 Nov 6, 2026 How this list was built

43Companies

1,029Contacts tracked

297Verified emails

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The 22 largest professional IT services based in Baltimore, United States

Ranked by team size

Top 22 of 43 company matches for professional IT services based in Baltimore, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Serigor INC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	51-200	172 contacts →
	Exact match “Serigor provides IT Services and IT staffing to Government and Commercial enterprises of all sizes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	A3 Consulting LLC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	51-200	106 contacts →
	Exact match “A3 Consulting LLC is a minority owned, SBA SDB and HUBZone certified information technology consulting and technology services firm providing a focused set of information…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Bithgroup Technologies	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	11-50	64 contacts →
	Exact match “BITHGROUP connects technology, operations, and people to help organizations solve complex challenges and see them through.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	RDTS	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	51-200	48 contacts →
	Exact match “RDTS employs innovative and driven IT professionals who provide risk-managed, state-of-the-art information technology services to our customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Methoddata	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	51-200	47 contacts →
	Exact match “MethodData takes the time to understand what you're building before we start, so that you end up with a solution that solves what you need.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	QUE Technology Group	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	11-50	45 contacts →
	Exact match “Founded in 2010, Que Technology Group (QTG), Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Visionary Technologies, INC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	11-50	32 contacts →
	Exact match “Visionary Technologies is a Technology Consulting firm headquartered in the Baltimore area which services businesses of all sizes throughout Maryland, D.C, and Virginia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Global CI Global Commerce & Information, INC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	51-200	29 contacts →
	Exact match “Global Commerce & Information, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	XL Solutions	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	51-200	23 contacts →
	Exact match “No matter what sector you’re in or line of work you do, your organization operates in a digital world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Mindpros, INC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “Software Development and Services” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Femdel LLC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “Femdel has become an innovative leader in the information technology industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Davis Unlimited Information Technologies, Inc. Duit	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “Founded in 2010 by a United States Navy Veteran and a federal government employee, DUIT is a woman owned and minority owned information technology company that has quickly emerged…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	SOS Tech Group	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	11-50	11 contacts →
	Exact match “SOS Technology Group is a full-service IT consulting company focused on delivering IT Services and Security Solutions to businesses across the USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	BL Technical Services, INC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	1-10	10 contacts →
	Exact match “BL Technical Services is a small group of consultants led by Andrew Leonard.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Avid Practice	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	1-10	9 contacts →
	Exact match “For nearly two decades, Avid Practice has served as the "Chief Technology Officer","Chief Information Office" and Support desk for high-profile clients and hedge funds around the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Pameric INC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	11-50	8 contacts →
	Exact match “Pameric delivers technology solutions and consulting services across key sectors including banking, education, healthcare, real estate, public organizations, and law enforcement.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Horsetail Tech	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	11-50	8 contacts →
	Exact match “Welcome To Horsetail Tech!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	RYE Tech	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “At RYE Tech, we pride ourselves on our advanced perspective and innovative approach to management consulting services and IT solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Global Cloud Technology Solutions	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Global Cloud Technology Solutions aims to guide businesses in Digital and Cloud Transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Hands Of Support Computer Services, Vsbe	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “From deploying desktops with new software, systems, and applications to taking one phone call on a printer problem, Hands of Support certified IT professionals covers the entire…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Marvelouz Teknology	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “At Marvelouz teknology, we believe that technology should support and enhance your organization’s success, not constrain it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Information Control Systems Corporation	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “Information Control Systems is an information technology & services company based out of 200 E.” Recorded in the RevenueBase company graph · Nov 6, 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 “professional IT services”. 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 22 of 43 professional IT services based in Baltimore, United States

See the full list, filter by size, metro and specialty, and access 297 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Professional IT services based in Baltimore, United States at a glance

As of Nov 6, 2026

28.9%Verified-email coverage

23.9Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Baltimore, so it is reported there. Company counts and contact totals on this page are exact for Baltimore, over 43 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 Baltimore, United States whose business descriptions match “professional IT services” 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 297 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 November 6, 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.

Professional IT services 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 “professional IT services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional IT services are there based in Baltimore, United States?

RevenueBase identified 43 company matches for professional IT services associated with Baltimore, United States as of November 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?

Serigor INC 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 professional IT services?

New York leads the United States with 558 company records, followed by Houston (415) and Dallas (318). Baltimore has 43.

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 297 professional contacts with verified work emails tracked across these 43 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 November 6, 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.