Company lists · Data refreshed September 2026

Top 25 Startup app developers based in the United States

Name: Startup app developers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 3,852 companies tracked

RevenueBase identified 3,852 startup app developers headquartered in the United States as of September 2026 and tracks 42,995 professional contacts across them, including 8,653 with verified work emails. New York is the largest hub.

This list covers startup app developers 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 22, 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 22, 2026 86% judged on-target in blind review

3,852Companies

42,995Contacts tracked

8,653Verified emails

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The 25 largest startup app developers based in the United States

Ranked by team size

Top 25 of 3,852 startup app developers based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to startup app developers: 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	Chetu, INC	Strong evidence	Sunrise, FL, United StatesHQ checked Sep 22, 2026	1,001-5,000	2,943 contacts →
	Strong evidence “Chetu is your seamless backend technology partner, helping startups, SMBs, and Fortune companies accelerate development of desktop, mobile, and web apps with on-demand developers…” Source: RevenueBase Database · checked Sep 22, 2026
2	Lollypop Design Studio	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 22, 2026	201-500	1,078 contacts →
	Indirect evidence “We are a full-stack design-to-development solution provider, that helps enterprises build future-ready products.” Source: RevenueBase Database · checked Sep 22, 2026
3	Folio3 Software	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 22, 2026	501-1,000	846 contacts →
	Indirect evidence “Folio3 is a California based software development company that helps entrepreneurs and large corporations build innovative, world class software solutions by providing offshore…” Source: RevenueBase Database · checked Sep 22, 2026
4	Zemoso Technologies	Partial evidence	Farmers Branch, TX, United StatesHQ checked Sep 22, 2026	501-1,000	750 contacts →
	Partial evidence “Our enterprise and startup customers partner with us to incubate new digital solutions and technologies.” Source: RevenueBase Database · checked Sep 22, 2026
5	Agile Infoways	Indirect evidence	Coral Springs, FL, United StatesHQ checked Sep 22, 2026	201-500	349 contacts →
	Indirect evidence “We are designing, building and scaling digital products since 18+ years.” Source: RevenueBase Database · checked Sep 22, 2026
6	Cyberx Info System	Partial evidence	Frederick, MD, United StatesHQ checked Sep 22, 2026	201-500	345 contacts →
	Partial evidence “Cyberx Info System's unique brand differentiation is our relentless focus on customer-centric mobile app development.” Source: RevenueBase Database · checked Sep 22, 2026
7	Roko Labs	Indirect evidence	New York, NY, United StatesHQ checked Sep 22, 2026	201-500	336 contacts →
	Indirect evidence “Roko Labs is an AI-native engineering partner for enterprises.” Source: RevenueBase Database · checked Sep 22, 2026
8	Mobidev	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 22, 2026	201-500	309 contacts →
	Indirect evidence “We don’t just develop applications; we build lasting partnerships that evolve software to keep our clients competitive and innovative.” Source: RevenueBase Database · checked Sep 22, 2026
9	Litslink	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 22, 2026	201-500	228 contacts →
	Indirect evidence “LITSLINK is a US-based custom software development company with offices in Palo Alto, CA and Orlando, FL.” Source: RevenueBase Database · checked Sep 22, 2026
10	Zapta Technologies Pvt. Limited	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	201-500	228 contacts →
	Partial evidence “ZAPTA Technologies is an AI-driven software design and development company that partners with startups, enterprises, and funded ventures to deliver tailored digital solutions.” Source: RevenueBase Database · checked Sep 22, 2026
11	Inoxoft	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 22, 2026	201-500	219 contacts →
	Indirect evidence “Inoxoft is an award-winning custom software development company that builds industry-specific digital solutions for Healthcare, Fintech, Real Estate, Education, and Logistics.” Source: RevenueBase Database · checked Sep 22, 2026
12	Glorium Technologies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	201-500	217 contacts →
	Indirect evidence “Glorium Technologies is a top-shelf bespoke software development firm, boasting 100+ deployed products.” Source: RevenueBase Database · checked Sep 22, 2026
13	Fluxon	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	201-500	200 contacts →
	Partial evidence “Fluxon is a San Francisco-based software development team trusted by Google, Anthropic, Stripe, and top startups with the technology work that matters most.” Source: RevenueBase Database · checked Sep 22, 2026
14	Webappclouds LLC	Partial evidence	Cherry Hill, NJ, United StatesHQ checked Sep 22, 2026	201-500	186 contacts →
	Partial evidence “Webappclouds takes mobile apps and web apps to the next level.” Source: RevenueBase Database · checked Sep 22, 2026
15	Agilityio	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	201-500	183 contacts →
	Partial evidence “AgilityIO is a global design and development firm helping startups and enterprises turn bold ideas into impactful digital products.” Source: RevenueBase Database · checked Sep 22, 2026
16	Signitives	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 22, 2026	51-200	165 contacts →
	Indirect evidence “We're a world-class digital product engineering firm, delivering innovative SaaS-based web and mobile solutions to clients.” Source: RevenueBase Database · checked Sep 22, 2026
17	Integrity	Partial evidence	Saint Louis, MO, United StatesHQ checked Sep 22, 2026	51-200	164 contacts →
	Partial evidence “Integrity crafts compelling user experiences for startups and enterprise clients across iPhone, iPad, Android and the web.” Source: RevenueBase Database · checked Sep 22, 2026
18	Clustox	Indirect evidence	Dover, DE, United StatesHQ checked Sep 22, 2026	51-200	159 contacts →
	Indirect evidence “Clustox provides specialized design & development services in the technology space - focusing on an end to end solution development (product development & custom application…” Source: RevenueBase Database · checked Sep 22, 2026
19	Brainx Technologies	Partial evidence	Middletown, DE, United StatesHQ checked Sep 22, 2026	51-200	146 contacts →
	Partial evidence “BrainX is an ISO 9001:2015 and ISO 27001-certified software development firm that works with startups, SMBs & enterprises to craft disruptive digital products & strategies that…” Source: RevenueBase Database · checked Sep 22, 2026
20	Apptechies	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	51-200	144 contacts →
	Indirect evidence “Apptechies aim to remodel your business by giving it an internet setup.” Source: RevenueBase Database · checked Sep 22, 2026
21	Devstringx Technologies	Partial evidence	Dallas, TX, United StatesHQ checked Sep 22, 2026	51-200	142 contacts →
	Partial evidence “Devstringx Technologies is a Product development, Mobile App development, and Independent Testing service provider dedicated to empowering businesses worldwide by providing…” Source: RevenueBase Database · checked Sep 22, 2026
22	Outliant	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	201-500	139 contacts →
	Indirect evidence “We offer technical, end-to-end services.” Source: RevenueBase Database · checked Sep 22, 2026
23	Keyideas Infotech Private Limited	Indirect evidence	Daytona Beach, FL, United StatesHQ checked Sep 22, 2026	51-200	137 contacts →
	Indirect evidence “FoundedIn2007, we’ve grown from a #SmallBusiness to a #FullService powerhouse.” Source: RevenueBase Database · checked Sep 22, 2026
24	Techquarter	Indirect evidence	Cheyenne, United StatesHQ checked Sep 22, 2026	51-200	133 contacts →
	Indirect evidence “We don’t just build software.” Source: RevenueBase Database · checked Sep 22, 2026
25	Appwrk IT Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	51-200	131 contacts →
	Indirect evidence “Introducing APPWRK IT Solutions: Your Partner for Innovative Digital IT Solutions!” Source: RevenueBase Database · checked Sep 22, 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: startup app developers. 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 startup app developers.
Partial evidence: Its own public description names part of startup app developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name startup app developers. 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 3,852 startup app developers based in the United States

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Startup app developers based in the United States at a glance

As of Sep 22, 2026

20.1%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

7.6%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

1,968

11-50

1,386

51-200

416

201-500

501-1,000

1,001-5,000

5,001-10,000

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 3,852 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 startup app developers, 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 “startup app developers”. 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 startup app developers), 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 startup app developers, 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, 8,653 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 22, 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.

Startup app developers by metro

Startup app developers in New York293
Startup app developers in San Francisco144
Startup app developers in Austin136
Startup app developers in Los Angeles120
Startup app developers in Sheridan99
Startup app developers in Chicago77
Startup app developers in Miami73
Startup app developers in Houston72
Startup app developers in Atlanta63
Startup app developers in San Diego61
Startup app developers in Dallas58
Startup app developers in Denver49
Startup app developers in San Jose43
Startup app developers in Seattle39
Startup app developers in Dover35
Startup app developers in Portland35
Startup app developers in Boston34
Startup app developers in Orlando33
Startup app developers in Wilmington32
Startup app developers in Brooklyn28
Startup app developers in Irvine27
Startup app developers in Tampa26

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 startup app developers, 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 startup app developers are there based in the United States?

RevenueBase identified 3,852 startup app developers 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?

Chetu, INC, headquartered in Sunrise, tops this list with the largest team on record.

Which city has the most startup app developers?

New York leads with 293 headquartered companies, followed by San Francisco (144) and Austin (136).

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 8,653 verified decision-maker contacts tracked across these 3,852 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 22, 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.