Company lists · Data refreshed November 2026

Top 25 Website developers based in Seattle, United States

Name: Website developers based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 137 companies tracked

RevenueBase identified 137 company matches for website developers associated with Seattle, United States as of November 2026 and tracks 451 professional contacts across them, including 75 with verified work emails. Across the United States, New York is the largest hub for this category (556 companies); Seattle has 137.

This list covers company matches for website developers 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 November 6, 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 Nov 6, 2026 How this list was built

137Companies

451Contacts tracked

75Verified emails

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The 25 largest website developers based in Seattle, United States

Ranked by team size

Top 25 of 137 company matches for website developers based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Marketeering Group	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “Marketeering Group is the digital marketing agency delivering flexible solutions to complex problems with strategic and impact-driven SEO implementation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Foundry Interactive	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	11 contacts →
	Exact match “We build, market and optimize websites that connect customers and businesses in ways that are both meaningful and measurable.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Blue Rooster INC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	10 contacts →
	Exact match “Blue Rooster is a modern digital agency driving Strategy, UX Design and Technology for today's enterprise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Internet Development Studio Company	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	10 contacts →
	Exact match “Internet Development Studio Company (INTDEV) is your go-to design and engineering team, delivering high performance building, shipping, maintaining websites, platforms, brands…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Research & Design	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	9 contacts →
	Exact match “Research & Design is a design and technology firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Freelock	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	8 contacts →
	Exact match “Since we've built on open source: not as a compromise, but as a conviction.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Bizango	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	8 contacts →
	Exact match “We're a full-service web design and online marketing agency dedicated to serving businesses, bestselling authors, startups and e-commerce.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Montana Banana WEB Design & Development	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	6 contacts →
	Exact match “Montana Banana is a Seattle-based web design and development company that crafts custom websites, ecommerce platforms, and mobile apps that attract customers, run smoothly, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	O'daniel Designs	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	6 contacts →
	Exact match “O'Daniel Designs is now O'Daniel Creative (@ODanielCreative) O'Daniel Designs, LLC is a one-stop-source for company's branding, marketing and website design needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Engine Interactive	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	6 contacts →
	Exact match “As one of the most established interactive agencies on the West Coast, Engine has been creating high performance interactive media for 17 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Helpful Human	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	5 contacts →
	Exact match “Helpful Human strategically cooperates with our clients to design and build digital products that bring people together.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	NEW Theory	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	3 contacts →
	Exact match “New Theory is a creative web agency that pushes design and technology for a shared, frictionless future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Rory Martin, INC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “RoryMartin.com, in Seattle, WA, is an innovative web marketing and design firm that brings companies and their customers closer together.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Hard Refresh	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Better for business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	White Brick	Exact match	Seattle, United StatesHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Since 2008 I have been producing websites, marketing, and tech infrastructure for small businesses in the Seattle area.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Swiss IT Solutions	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Swiss It Solutions is a technology company offering web design and IT consulting services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Panolabs	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “We are a full-stack Web development and technical consulting company based in Seattle, Washington.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Seattle WEB Group	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “Intelligent website development takes the type of expertise that only comes with years of real experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Gosolid	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	2 contacts →
	Exact match “GoSolid is the authority in all things eCommerce.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Defined Digital	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “At Defined Digital, we offer all-inclusive website services designed specifically to help small to mid-size businesses grow and thrive online.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Coho Digital LLC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “EMPOWERING YOUR BUSINESS SUCCESS From websites and cloud apps to marketing concepts to technology systems and support, COHO has the talent and experience to help you do your best…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Webkey	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “Taking care of the needs of companies small and large on the web has been our business for over two decades.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	BIG Tent Digital	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “Big Tent Digital is an agency comprised of highly seasoned independent digital artisans with prominent agency and client experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Y ART Works	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “Y Art Works is a Seattle graphic design and web development studio specializing in logo design, print design and web development.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Simdes Digital Agency	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “We are a digital agency established in 2007 in the State of Washington with experience in developing personal and commercial websites, custom data processing systems, forex expert…” Recorded in the RevenueBase company graph · Nov 6, 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 “website developers”. 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 137 website developers based in Seattle, United States

See the full list, filter by size, metro and specialty, and access 75 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Website developers based in Seattle, United States at a glance

As of Nov 6, 2026

16.6%Verified-email coverage

3.3Average contacts per company

1-10Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

106

11-50

51-200

201-500

501-1,000

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 137 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 “website developers” 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 75 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 November 6, 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.

Website developers 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 “website developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many website developers are there based in Seattle, United States?

RevenueBase identified 137 company matches for website developers associated with Seattle, United States as of November 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?

Marketeering 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 website developers?

New York leads the United States with 556 company records, followed by Los Angeles (299) and Austin (250). Seattle has 137.

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 75 professional contacts with verified work emails tracked across these 137 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 November 6, 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.