Company lists · Data refreshed September 2026

Top 25 Custom software companies based in Tampa, United States

Name: Custom software companies based in Tampa, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 70 companies tracked

RevenueBase identified 70 custom software companies headquartered in Tampa, United States as of September 2026 and tracks 821 professional contacts across them, including 219 with verified work emails. Across the United States, New York is the largest hub for this category (439 companies); Tampa has 70.

This list covers custom software companies headquartered in Tampa, 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 24, 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 24, 2026 86% judged on-target in blind review

70Companies

821Contacts tracked

219Verified emails

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The 25 largest custom software companies based in Tampa, United States

Ranked by team size

Top 25 of 70 custom software companies based in Tampa, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to custom software companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kitrum	Strong evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	51-200	191 contacts →
	Strong evidence “KITRUM is a custom software engineering partner for companies scaling and modernizing live, business-critical products.” Source: RevenueBase Database · checked Sep 24, 2026
2	Taff INC	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	51-200	105 contacts →
	Indirect evidence “TAFF Inc is a global leader and one of the fastest growing next-generation IT services Company.” Source: RevenueBase Database · checked Sep 24, 2026
3	NIX United	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	1,001-5,000	78 contacts →
	Indirect evidence “Whether your product is at the starting point of the development journey or you have already had some groundwork, we help you build an optimal solution, efficient today and easily…” Source: RevenueBase Database · checked Sep 24, 2026
4	Convene, INC	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	51-200	50 contacts →
	Partial evidence “We are guided by a singular mission: to be the dependable ally our clients rely on, empowering them to amplify their competitive edge by implementing cutting-edge software…” Source: RevenueBase Database · checked Sep 24, 2026
5	Sourcetoad	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	51-200	47 contacts →
	Indirect evidence “Sourcetoad is a technology strategy and execution firm headquartered in Tampa, Florida.” Source: RevenueBase Database · checked Sep 24, 2026
6	Calaton Systems	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	11-50	28 contacts →
	Partial evidence “We are a team of skilled professionals in software, web, and mobile development, headquartered in Tampa, FL with research and development operations in Ukraine and Poland.” Source: RevenueBase Database · checked Sep 24, 2026
7	Unicon Systems	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	51-200	27 contacts →
	Indirect evidence “Unicon Systems specializes in providing a wide range of services designed to help clients overcome challenges and capitalize on opportunities.” Source: RevenueBase Database · checked Sep 24, 2026
8	Zencloud Technologies	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	11-50	25 contacts →
	Partial evidence “We are a leading software development company with a proven track record of delivering cutting-edge, high-quality solutions across diverse industries.” Source: RevenueBase Database · checked Sep 24, 2026
9	Supertech Consulting	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	51-200	16 contacts →
	Partial evidence “SuperTech Solutions is fast growing global Software development, Analytic consulting and Information Technology services.” Source: RevenueBase Database · checked Sep 24, 2026
10	Haneke Design	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	11-50	15 contacts →
	Indirect evidence “Haneke Design's mission is to provide clients with a team of passionate innovators dedicated to harnessing the full potential of digital technologies to amaze and delight end…” Source: RevenueBase Database · checked Sep 24, 2026
11	Keeneight	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	1-10	11 contacts →
	Partial evidence “Keeneight is an international company specialized in consulting and development of enterprise software solutions, with a particular focus on engineering and product development…” Source: RevenueBase Database · checked Sep 24, 2026
12	E2generations	Strong evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	11-50	10 contacts →
	Strong evidence “E2Generations: As a custom software development company, our team builds software.” Source: RevenueBase Database · checked Sep 24, 2026
13	Black Badger Software Solutions	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	11-50	8 contacts →
	Partial evidence “Our expert software consultants have worked with hundreds of companies and offer a deep familiarity with the leading software tools on the market.” Source: RevenueBase Database · checked Sep 24, 2026
14	Mercuryworks	Strong evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	11-50	8 contacts →
	Strong evidence “We are a custom software development firm specializing in web, mobile and data focused solutions.” Source: RevenueBase Database · checked Sep 24, 2026
15	Idea-Refinery LLC	Partial evidence	Tampa, United StatesHQ checked Sep 24, 2026	11-50	7 contacts →
	Partial evidence “Empowering Software Innovation: At Idea-Refinery, we're more than a team of software developers; we're architects of digital evolution.” Source: RevenueBase Database · checked Sep 24, 2026
16	Symbyo Technologies	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	201-500	7 contacts →
	Partial evidence “Symbyo is leading provider of Software R&D services.” Source: RevenueBase Database · checked Sep 24, 2026
17	Isolufy LLC	Strong evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	51-200	7 contacts →
	Strong evidence “ISolufy is a US-based custom software development company that creates leading digital products to ensure an easier and smoother process of development for every client.” Source: RevenueBase Database · checked Sep 24, 2026
18	Parablesoft	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	1-10	6 contacts →
	Indirect evidence “ParableSoft specializes in creating applications that solve problems.” Source: RevenueBase Database · checked Sep 24, 2026
19	Justsoftlab	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	11-50	5 contacts →
	Indirect evidence “JustSoftLab builds production AI and data systems for companies where a wrong answer is expensive: fintech, healthcare, and logistics.” Source: RevenueBase Database · checked Sep 24, 2026
20	Apricot Tech LLC	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	51-200	5 contacts →
	Partial evidence “Apricot Technologies provides not just the best Software development and Consulting services but the right services to deliver reliable and most efficient solutions to help the…” Source: RevenueBase Database · checked Sep 24, 2026
21	Crafttek Consulting INC	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	11-50	3 contacts →
	Partial evidence “We provide guidance and create software applications that deliver value for your business with performance in mind.” Source: RevenueBase Database · checked Sep 24, 2026
22	Powerslice Software	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	1-10	3 contacts →
	Partial evidence “PowerSlice helps small and mid-size companies stop renting software that doesn't fit and start owning systems that do Most firms we work with are running on a stack of SaaS…” Source: RevenueBase Database · checked Sep 24, 2026
23	Cayland Solutions INC	Strong evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	1-10	3 contacts →
	Strong evidence “We are a full service development company with 15+ years of experience creating custom enterprise application software, suited to fit the needs of businesses of all sizes.” Source: RevenueBase Database · checked Sep 24, 2026
24	Sanity LAB	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	1-10	3 contacts →
	Partial evidence “Sanity Lab is a Tampa, FL based IT consulting and software services company helping businesses build reliable software, scale high-performing teams, and execute successful digital…” Source: RevenueBase Database · checked Sep 24, 2026
25	Wildcat Software Design	Partial evidence	Tampa, FL, United StatesHQ checked Sep 24, 2026	11-50	2 contacts →
	Partial evidence “Mobile App, Website, and Software Development” Source: RevenueBase Database · checked Sep 24, 2026

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: custom software 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 custom software companies.
Partial evidence: Its own public description names part of custom software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software 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 70 custom software companies based in Tampa, United States

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Custom software companies based in Tampa, United States at a glance

As of Sep 24, 2026

26.7%Verified-email coverage

11.7Average contacts per company

1-10Median size (employees)

Sep 24, 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 Tampa, so it is reported there. Company counts and contact totals on this page are exact for Tampa, over 70 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 custom software 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 Tampa, United States whose own description of what they do matches “custom software 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 custom software 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 custom software companies, and records with no verified work email. Companies headquartered outside Tampa 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, 219 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 24, 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.

Custom software companies 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 custom software 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 custom software companies are there based in Tampa, United States?

RevenueBase identified 70 custom software companies headquartered in Tampa, 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?

Kitrum, headquartered in Tampa, tops this list with the largest team on record.

Which city in the United States has the most custom software companies?

New York leads the United States with 439 headquartered companies, followed by Austin (284) and Houston (198). Tampa has 70.

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 219 verified decision-maker contacts tracked across these 70 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 24, 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.