Company lists · Data refreshed September 2026

Top 25 Internal tool development services based in the United States

RevenueBase identified 213 internal tool development services headquartered in the United States as of September 2026 and tracks 1,125 professional contacts across them, including 264 with verified work emails. New York is the largest hub.

This list covers internal tool development services headquartered in the 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 20, 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 20, 2026 86% judged on-target in blind review
213Companies
1,125Contacts tracked
264Verified emails
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The 25 largest internal tool development services based in the United States

Ranked by team size
Top 25 of 213 internal tool development services based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to internal tool development services: 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
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,000303 contacts →

Indirect evidence

“Shinetech provides dedicated developers and teams to scale your engineering capacity-without losing domain knowledge or delivery predictability.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceAustin, TX, United StatesHQ checked Sep 20, 2026201-500156 contacts →

Partial evidence

“Embarcadero tools are built for elite developers who build and maintain the world’s most critical applications.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceParis, United StatesHQ checked Sep 20, 202651-20028 contacts →

Partial evidence

“Cycloid is a unified Internal Developer Portal and Platform, made to scale your platform engineering initiatives, boost teams productivity – and the developer experience.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceWinston Salem, NC, United StatesHQ checked Sep 20, 202611-5022 contacts →

Partial evidence

“Solutions Afoot has helped businesses grow since 2017 through custom database development, database application development, workflow automation, API integration, and business…”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 20, 202611-5021 contacts →

Indirect evidence

“At Magnetar Solutions, we don’t just build software-we engineer intelligent ecosystems that drive growth.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 20, 20261-1018 contacts →

Indirect evidence

“Vixiv software allows engineers to maximize the perfomance outputs of each product while reducing design time.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceFredericksburg, VA, United StatesHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

“At Synctivate, we build custom software solutions that simplify complex business operations, no matter your industry.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceWilmington, DE, United StatesHQ checked Sep 20, 202611-5015 contacts →

Partial evidence

“We are an AI-native delivery partner for funded startups and growing SMBs that need to ship fast without building an internal engineering team from scratch.”

Source: RevenueBase Database · checked Sep 20, 2026
9Strong evidenceIndianapolis, IN, United StatesHQ checked Sep 20, 20261-1014 contacts →

Strong evidence

“At Bold Tech, we specialize in building powerful, AI-powered internal tools.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceCanton, GA, United StatesHQ checked Sep 20, 202611-5010 contacts →

Partial evidence

“Kalon helps businesses and organizations operate more efficiently by building custom technology tools and applications to fit their needs.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceNew York, United StatesHQ checked Sep 20, 202611-5010 contacts →

Partial evidence

“Nylon Technology is a software development firm that helps companies build, modernize, and support custom software.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceFort Lauderdale, United StatesHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

“At GoToITSolutions, we help small and medium-sized businesses work smarter, not harder.”

Source: RevenueBase Database · checked Sep 20, 2026
13Strong evidenceAustin, TX, United StatesHQ checked Sep 20, 202611-509 contacts →

Strong evidence

“Founded in 2001, Calavista Software® has spent the last two decades delivering development and testing services, process consulting and software tools to companies that range from…”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceGoleta, CA, United StatesHQ checked Sep 20, 202611-509 contacts →

Indirect evidence

“Eiffel Software is recognized as the thought leader in making software projects predictable and controllable.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceMiami, FL, United StatesHQ checked Sep 20, 202611-509 contacts →

Indirect evidence

“Modernize your company with our software solutions!”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceDenver, CO, United StatesHQ checked Sep 20, 202611-508 contacts →

Partial evidence

“Revolutionary software for product development.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-508 contacts →

Indirect evidence

“Set & Forget wants to help your organization achieve more and faster.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceAustin, TX, United StatesHQ checked Sep 20, 20261-107 contacts →

Indirect evidence

“Pre-built software might work for the masses-but not for innovative businesses looking to scale.”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidenceSanta Ana, CA, United StatesHQ checked Sep 20, 20261-107 contacts →

Strong evidence

“Robotic Arm Software is a tools consulting and development services company, focused on creating better tools for the game industry.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceWest Orange, NJ, United StatesHQ checked Sep 20, 20261-106 contacts →

Indirect evidence

“We believe that every organization has unique requirements and workflows, and that off-the-shelf software solutions simply cannot meet the specific needs of each individual client.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceAustin, MO, United StatesHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“Custom software and AI automation for SMBs preparing to scale or sell.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“At Unstoppable Software, Inc, our custom software solutions have not only minimized delivery times but also eradicated cumbersome paperwork, facilitating data-driven…”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceBrooklyn, United StatesHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

“Want to expand your business?”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceWashington D.c, United StatesHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

“Founded by Thad Tayo.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-104 contacts →

Partial evidence

“WHAT DO WE DO Simple To Work provides custom data solutions, where we work with clients and their data to develop simple to use tools that help workers work smarter and faster as…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 213 internal tool development services based in the United States

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Internal tool development services based in the United States at a glance

As of Sep 20, 2026
23.5%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
5.2%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
162
11-50
44
51-200
5
201-500
1
501-1,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 213 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 internal tool development services, 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 the United States whose own description of what they do matches “internal tool development services”. 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 internal tool development services), 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 internal tool development services, and records with no verified work email. Companies headquartered outside United States 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, 264 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 20, 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.

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 internal tool development services, 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 internal tool development services are there based in the United States?

RevenueBase identified 213 internal tool development services headquartered in the 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?

Shinetech Software INC, headquartered in New York, tops this list with the largest team on record.

Which city has the most internal tool development services?

New York leads with 11 headquartered companies, followed by Austin (10) and San Francisco (10).

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 264 verified decision-maker contacts tracked across these 213 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 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 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.