Company lists · Data refreshed September 2026

Top 25 Enterprise app development firms based in Seattle, United States

Name: Enterprise app development firms based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 76 companies tracked

RevenueBase identified 76 company matches for enterprise app development firms associated with Seattle, United States as of September 2026 and tracks 521 professional contacts across them, including 167 with verified work emails. Across the United States, New York is the largest hub for this category (479 companies); Seattle has 76.

This list covers company matches for enterprise app development firms associated with Seattle, 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 September 29, 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 Sep 29, 2026 How this list was built

76Companies

521Contacts tracked

167Verified emails

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The 25 largest enterprise app development firms based in Seattle, United States

Ranked by team size

Top 25 of 76 company matches for enterprise app development firms based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	White Rabbit Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	51-200	135 contacts →
	Exact match “White Rabbit Group is a software development agency with a highly diverse and creative team that takes an idea through development and into scale.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Janea Systems	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	51-200	60 contacts →
	Exact match “For over two decades, Janea Systems has provided high impact software development services to Fortune 500 companies.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Palador	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	11-50	28 contacts →
	Exact match “Palador has provided successful enterprise solutions and strategic initiatives for mobility, app and web development and data and software integration since 2005.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	NEW Normal	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	11-50	25 contacts →
	Exact match “NewNormal builds custom software and lasting partnerships Since 2012 we’ve helped clients turn ideas into products that scale.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Itrellis, LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	11-50	13 contacts →
	Exact match “iTrellis is a Custom Software and Systems Integration consultancy located in Seattle, WA.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Qubitsoft	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	11-50	12 contacts →
	Exact match “Qubitsoft is an innovative and creative company that aims to meet its clients’ demands and provide original software solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Lunarbyte	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	12 contacts →
	Exact match “Lunarbyte is a custom software and product development firm trusted by teams across industries to deliver dependable, scalable software solutions that drive real business results.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	K Consulting	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	8 contacts →
	Exact match “Welcome to K.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Fostec	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	8 contacts →
	Exact match “Founded in 1998, Fostec is a client-focused Information Technology consulting firm that designs solutions and provides technical expertise to small and mid-sized businesses…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Swyft ERP Swyfterp.com	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	11-50	7 contacts →
	Exact match “We build custom business software solutions that scale with companies and help streamline business processes and also specialize in NetSuite build/implementation for larger…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Gols INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	11-50	7 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Tecknowcore LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	6 contacts →
	Exact match “Tecknowcore is a boutique technology partner supporting multinational organizations in the design and delivery of complex, mission-critical digital solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Pacific Automation Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	4 contacts →
	Exact match “We create and deploy tailor-made software solutions aimed at enhancing efficiency and optimizing operations for a diverse range of clients, spanning individuals, businesses…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Cogenix	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	4 contacts →
	Exact match “Cogenix offers business consulting, application development and software integration services to our client base.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Zaifworks LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	4 contacts →
	Exact match “Zaifworks is software development and cloud consulting firm that specializes in healthcare, real-estate and it services industries.* We transform, deploy and support what you are…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	joen.io	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	3 contacts →
	Exact match “A boutique consulting firm based in Seattle, WA with offices in Orange County, CA specializing in Mobile App Development and Integration of Enterprise systems.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Webonyx	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	11-50	2 contacts →
	Exact match “WebOnyx is a software development company that specializes in building custom software.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	dev.co	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	11-50	2 contacts →
	Exact match “Established in 2008 as a advertising & financial software consulting firm, DEV.co brings brings over 12 years of successful leadership to custom software development projects…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Orahsoft Solutions	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “OrahSoft - Solution for all your computer needs.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Buddio Tech	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “Buddio Tech build mobile apps.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Inner Product LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “Inner Product builds great software for the enterprise.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Null Unit	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “We take a lean, cost-effective approach to helping small-medium businesses (and the occasional enterprise) ship software that addresses acute needs and delivers immediate value.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Jcmobtech LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “We are Software Engineers that are passionate about converting great ideas into unique and reliable software solutions that helps the business growth.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Sorth LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “Sorth LLC is a mobile software company based in Seattle” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Pancake Labs	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “A full-stack web development team based in Seattle, WA.” Recorded in the RevenueBase company graph · Sep 29, 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 “enterprise app development firms”. 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 25 of 76 enterprise app development firms based in Seattle, United States

See the full list, filter by size, metro and specialty, and access 167 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Enterprise app development firms based in Seattle, United States at a glance

As of Sep 29, 2026

32.1%Verified-email coverage

6.9Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 76 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 Seattle, United States whose business descriptions match “enterprise app development firms” 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 167 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 September 29, 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.

Enterprise app development firms 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 “enterprise app development firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise app development firms are there based in Seattle, United States?

RevenueBase identified 76 company matches for enterprise app development firms associated with Seattle, United States as of September 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?

White Rabbit Group 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 enterprise app development firms?

New York leads the United States with 479 company records, followed by Austin (268) and Houston (218). Seattle has 76.

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 167 professional contacts with verified work emails tracked across these 76 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 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 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.