Company lists · Data refreshed September 2026

Top 25 Software modernization companies based in the United States

Name: Software modernization companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 645 companies tracked

RevenueBase identified 645 software modernization companies headquartered in the United States as of September 2026 and tracks 17,659 professional contacts across them, including 5,203 with verified work emails. Austin is the largest hub.

This list covers software modernization companies 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 29, 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 29, 2026 86% judged on-target in blind review

645Companies

17,659Contacts tracked

5,203Verified emails

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The 25 largest software modernization companies based in the United States

Ranked by team size

Top 25 of 645 software modernization companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to software modernization 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	Improving	Indirect evidence	Plano, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,578 contacts →
	Indirect evidence “Improving is a leading IT professional services firm committed to helping companies achieve lasting success through modern technology.” Source: RevenueBase Database · checked Sep 29, 2026
2	Royal Cyber INC	Indirect evidence	Naperville, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,325 contacts →
	Indirect evidence “Royal Cyber is a trusted global IT consulting & digital transformation partner, empowering enterprises for over two decades to evolve with agility, security, and innovation.” Source: RevenueBase Database · checked Sep 29, 2026
3	STG	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 29, 2026	51-200	508 contacts →
	Indirect evidence “Your Business Technology Partner.” Source: RevenueBase Database · checked Sep 29, 2026
4	Growth Acceleration Partners	Indirect evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	501-1,000	507 contacts →
	Indirect evidence “Growth Acceleration Partners is a consulting and technology services company.” Source: RevenueBase Database · checked Sep 29, 2026
5	Zoolatech	Partial evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	501-1,000	468 contacts →
	Partial evidence “Zoolatech is a global software engineering partner helping enterprises modernize legacy systems, adopt AI, and build scalable digital platforms.” Source: RevenueBase Database · checked Sep 29, 2026
6	Softweb Solutions Inc.	Indirect evidence	Plano, TX, United StatesHQ checked Sep 29, 2026	501-1,000	430 contacts →
	Indirect evidence “When we look at the way enterprises operate today, we see a fundamental challenge.” Source: RevenueBase Database · checked Sep 29, 2026
7	United Techno	Indirect evidence	Pleasanton, CA, United StatesHQ checked Sep 29, 2026	201-500	372 contacts →
	Indirect evidence “At United Techno, we harness experience and collaboration to address customer challenges and devise intuitive solutions.” Source: RevenueBase Database · checked Sep 29, 2026
8	Newt Global	Partial evidence	Irving, TX, United StatesHQ checked Sep 29, 2026	501-1,000	334 contacts →
	Partial evidence “Empowering enterprise transformation with innovation, agility, and cloud-native modernization.” Source: RevenueBase Database · checked Sep 29, 2026
9	Valzo Soft Solutions	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 29, 2026	1,001-5,000	286 contacts →
	Indirect evidence “ValzoSoft Solutions – Driving Innovation, Empowering Growth At ValzoSoft Solutions, we turn visionary ideas into transformative digital experiences.” Source: RevenueBase Database · checked Sep 29, 2026
10	Nalashaa Solutions	Indirect evidence	Edison, NJ, United StatesHQ checked Sep 29, 2026	201-500	278 contacts →
	Indirect evidence “At Nalashaa Solutions, we’re not just technologists; we’re your trusted partners in transformation.” Source: RevenueBase Database · checked Sep 29, 2026
11	Unified Infotech	Indirect evidence	NY, United StatesHQ checked Sep 29, 2026	201-500	251 contacts →
	Indirect evidence “Unified Infotech is an award winning digital transformation partner that was founded in 2010.” Source: RevenueBase Database · checked Sep 29, 2026
12	Geniusee	Partial evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	201-500	235 contacts →
	Partial evidence “Geniusee is an AI and software engineering company with delivery hubs in Ukraine and Poland.” Source: RevenueBase Database · checked Sep 29, 2026
13	Alliance Global Services	Partial evidence	Conshohocken, PA, United StatesHQ checked Sep 29, 2026	10001+	227 contacts →
	Partial evidence “Alliance Global Services is a software development firm that partners with software, technology and information-intensive businesses on their mission critical work.” Source: RevenueBase Database · checked Sep 29, 2026
14	Zymr, Inc. Ai-Native Product Engineering Services	Partial evidence	San Jose, CA, United StatesHQ checked Sep 29, 2026	201-500	222 contacts →
	Partial evidence “Zymr is a fast-paced Silicon Valley-based software company that is leading the digital change.” Source: RevenueBase Database · checked Sep 29, 2026
15	Congruent Software INC	Partial evidence	Bellevue, WA, United StatesHQ checked Sep 29, 2026	201-500	210 contacts →
	Partial evidence “Founded in 1994, Congruent Software is a leading software development outsourcing company specialized in custom applications development, enterprise software, cloud computing, and…” Source: RevenueBase Database · checked Sep 29, 2026
16	Pulse Software Solutions LLC	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	51-200	207 contacts →
	Partial evidence “Pulse Software Solutions is a Denver-based custom software development firm with a proud history of building internet-based systems since 1998.” Source: RevenueBase Database · checked Sep 29, 2026
17	Astadia	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 29, 2026	201-500	206 contacts →
	Partial evidence “Astadia is the industry leader for mainframe migrations and modernizations.” Source: RevenueBase Database · checked Sep 29, 2026
18	Softsol	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 29, 2026	201-500	204 contacts →
	Indirect evidence “SoftSol Technologies delivers IT products and solutions that empower businesses toward greater efficiency, innovation, and cost savings.” Source: RevenueBase Database · checked Sep 29, 2026
19	Creospan INC	Indirect evidence	Schaumburg, IL, United StatesHQ checked Sep 29, 2026	201-500	197 contacts →
	Indirect evidence “Creospan is a technology and engineering consultancy that helps organizations turn complex ideas into scalable, working systems.” Source: RevenueBase Database · checked Sep 29, 2026
20	Flexion INC	Indirect evidence	Madison, WI, United StatesHQ checked Sep 29, 2026	201-500	194 contacts →
	Indirect evidence “In a complex, unpredictable world, adaptability is essential.” Source: RevenueBase Database · checked Sep 29, 2026
21	Ifour Technolab Pvt. LTD	Partial evidence	Brownsburg, IN, United StatesHQ checked Sep 29, 2026	51-200	192 contacts →
	Partial evidence “At iFour Technolab, we help forward-thinking businesses simplify complexity with smart, sustainable software solutions.” Source: RevenueBase Database · checked Sep 29, 2026
22	Code District	Partial evidence	Washington, VA, United StatesHQ checked Sep 29, 2026	51-200	183 contacts →
	Partial evidence “We collaborate closely with technology and business leaders across industries to help drive organizational advancement through AI-powered, purpose-built software solutions.” Source: RevenueBase Database · checked Sep 29, 2026
23	Expeed Software	Partial evidence	Columbus, OH, United StatesHQ checked Sep 29, 2026	51-200	170 contacts →
	Partial evidence “Expeed Software is an IT consulting company that helps businesses of all sizes modernize, integrate and optimize their applications and processes to create extraordinary…” Source: RevenueBase Database · checked Sep 29, 2026
24	Cinnova Technologies, LLC	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 29, 2026	51-200	155 contacts →
	Partial evidence “Cinnova is an agile software consulting firm focused on building next-generation business solutions for forward looking companies ranging from startups to Fortune 500 and…” Source: RevenueBase Database · checked Sep 29, 2026
25	JBS DEV Strategic Technology Experts	Indirect evidence	Chadds Ford, PA, United StatesHQ checked Sep 29, 2026	51-200	124 contacts →
	Indirect evidence “We make complex, simple.” Source: RevenueBase Database · checked Sep 29, 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: software modernization 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 software modernization companies.
Partial evidence: Its own public description names part of software modernization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software modernization 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 645 software modernization companies based in the United States

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Software modernization companies based in the United States at a glance

As of Sep 29, 2026

29.5%Verified-email coverage

27.4Average contacts per company

11-50Median size (employees)

4.5%Largest-city concentration · Austin

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

282

11-50

213

51-200

112

201-500

501-1,000

1,001-5,000

10001+

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 645 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 software modernization 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 the United States whose own description of what they do matches “software modernization 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 software modernization 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 software modernization companies, 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, 5,203 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 29, 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.

Software modernization companies by metro

Software modernization companies in Austin29

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 software modernization 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 software modernization companies are there based in the United States?

RevenueBase identified 645 software modernization companies 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?

Improving, headquartered in Plano, tops this list with the largest team on record.

Which city has the most software modernization companies?

Austin leads with 29 headquartered companies, followed by New York (25) and Atlanta (13).

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 5,203 verified decision-maker contacts tracked across these 645 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 29, 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.