Company lists · Data refreshed September 2026

Top 25 B2B SaaS development agencies based in Washington, United States

Name: B2B SaaS development agencies based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 73 companies tracked

RevenueBase identified 73 B2B SaaS development agencies headquartered in Washington, United States as of September 2026 and tracks 949 professional contacts across them, including 282 with verified work emails. Across the United States, New York is the largest hub for this category (568 companies); Washington has 73.

This list covers B2B SaaS development agencies headquartered in Washington, 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 23, 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 23, 2026 86% judged on-target in blind review

73Companies

949Contacts tracked

282Verified emails

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The 25 largest B2B SaaS development agencies based in Washington, United States

Ranked by team size

Top 25 of 73 B2B SaaS development agencies based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to B2B SaaS development agencies: 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	Webandcrafts	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	201-500	463 contacts →
	Partial evidence “Having been known as a website development company in the initial stages, Webandcrafts have now blossomed into a global IT solution provider.” Source: RevenueBase Database · checked Sep 23, 2026
2	Code District	Indirect evidence	Washington, VA, United StatesHQ checked Sep 23, 2026	51-200	183 contacts →
	Indirect 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 23, 2026
3	Imajine LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	25 contacts →
	Partial evidence “Founded in 2010, Imajine is a full-service web and mobile design/development company.” Source: RevenueBase Database · checked Sep 23, 2026
4	Sylver Rain Consulting	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	20 contacts →
	Indirect evidence “Sylver Rain Consulting is an IT solutions provider and proven expert in providing skilled consultants to meet any business need.” Source: RevenueBase Database · checked Sep 23, 2026
5	Partners International	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	15 contacts →
	Indirect evidence “Partners International is a Washington, D.C-based independent information technology consulting firm, specializing in outsourced IT support services and custom software…” Source: RevenueBase Database · checked Sep 23, 2026
6	Solutionsmet	Strong evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	14 contacts →
	Strong evidence “SolutionsMET, LLC is a software company that provides cloud-native application and SaaS platform development.” Source: RevenueBase Database · checked Sep 23, 2026
7	Strategic IT Partners	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	13 contacts →
	Partial evidence “Strategic IT Partners (SIP) stands at the forefront of software development and IT consulting, delivering bespoke, high-performance solutions that empower businesses to achieve…” Source: RevenueBase Database · checked Sep 23, 2026
8	3advance	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	12 contacts →
	Partial evidence “3Advance is an app development agency for those who see the future.” Source: RevenueBase Database · checked Sep 23, 2026
9	Linchpin Software LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	11 contacts →
	Partial evidence “Linchpin Software LLC is a solutions provider specializing in software architecture, cloud computing, enterprise application development, and custom user experience.” Source: RevenueBase Database · checked Sep 23, 2026
10	Webuild Databases	Indirect evidence	Washington, MI, United StatesHQ checked Sep 23, 2026	11-50	9 contacts →
	Indirect evidence “With 25+ years of expertise in application architecture, software design, and high-end data-driven web applications, WeBuild Databases is a proven leader in the space.” Source: RevenueBase Database · checked Sep 23, 2026
11	Netaesthetics	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	9 contacts →
	Indirect evidence “We build AI that works inside your business.” Source: RevenueBase Database · checked Sep 23, 2026
12	HLP Associates, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	7 contacts →
	Indirect evidence “HLP provides high quality service and support for your business IT needs.” Source: RevenueBase Database · checked Sep 23, 2026
13	Elicere, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	6 contacts →
	Indirect evidence “ELICERE was established in the Spring of 2008 with a vision built on core principles that are essential for any successful business: Establish trust, build relationships…” Source: RevenueBase Database · checked Sep 23, 2026
14	Parsage, INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	5 contacts →
	Partial evidence “Parsage is a boutique agile software development firm based in Washington, DC and founded in 2010.” Source: RevenueBase Database · checked Sep 23, 2026
15	Brickroad	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	5 contacts →
	Partial evidence “Brickroad is a custom software development and consulting firm with a passion for distilling complex logic into simple code.” Source: RevenueBase Database · checked Sep 23, 2026
16	Alternative Network Solutions LLC	Indirect evidence	Washington, PA, United StatesHQ checked Sep 23, 2026	1-10	4 contacts →
	Indirect evidence “Alternative Network Solutions is a technology leader in the Pittsburgh area.” Source: RevenueBase Database · checked Sep 23, 2026
17	Knowledge INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	1-10	4 contacts →
	Indirect evidence “Established in Washington, DC in 2009, Knowledge, Inc.” Source: RevenueBase Database · checked Sep 23, 2026
18	Buildinary	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	1-10	3 contacts →
	Partial evidence “Buildinary is a comprehensive App Development Solution.” Source: RevenueBase Database · checked Sep 23, 2026
19	RED Pulley, INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	1-10	3 contacts →
	Partial evidence “Red Pulley is an SBA certified EDWOSB and 8(a) small business providing innovative end-to-end Enterprise IT services, including software development, big data engineering…” Source: RevenueBase Database · checked Sep 23, 2026
20	LA Engineering	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	1-10	3 contacts →
	Partial evidence “We are a highly specialized cloud engineering, application development, infrastructure and systems administration firm that is dedicated to providing you the right service at a…” Source: RevenueBase Database · checked Sep 23, 2026
21	Ship IT INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	1-10	2 contacts →
	Partial evidence “Ship It specializes in custom software development for companies looking to leave an impact in their industry.” Source: RevenueBase Database · checked Sep 23, 2026
22	Gunpowderlabs	Partial evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	11-50	2 contacts →
	Partial evidence “We’ve helped startups build and launch products from scratch, augmented existing development teams to ship better features more quickly, and developed tools to help organizations…” Source: RevenueBase Database · checked Sep 23, 2026
23	Kreatek Information Systems, LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	1-10	2 contacts →
	Indirect evidence “Kreatek Information Systems, LLC is a technology company with a focus on web-based information systems for a wide range of markets and consumers.” Source: RevenueBase Database · checked Sep 23, 2026
24	Mainline Business Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	1-10	2 contacts →
	Indirect evidence “Mainline Business Solutions is a leading business solutions agency dedicated to helping companies thrive.” Source: RevenueBase Database · checked Sep 23, 2026
25	Space AGE Mediaworks	Indirect evidence	Washington, MO, United StatesHQ checked Sep 23, 2026	1-10	2 contacts →
	Indirect evidence “We’re a family-owned digital agency committed to helping businesses shine online through thoughtful, efficient, and effective solutions.” Source: RevenueBase Database · checked Sep 23, 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: B2B SaaS development agencies. 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 B2B SaaS development agencies.
Partial evidence: Its own public description names part of B2B SaaS development agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name B2B SaaS development agencies. 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 73 B2B SaaS development agencies based in Washington, United States

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B2B SaaS development agencies based in Washington, United States at a glance

As of Sep 23, 2026

29.7%Verified-email coverage

13.0Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 73 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 B2B SaaS development agencies, 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 Washington, United States whose own description of what they do matches “B2B SaaS development agencies”. 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 B2B SaaS development agencies), 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 B2B SaaS development agencies, and records with no verified work email. Companies headquartered outside Washington 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, 282 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 23, 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.

B2B SaaS development agencies by metro in the United States

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 B2B SaaS development agencies, 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 B2B SaaS development agencies are there based in Washington, United States?

RevenueBase identified 73 B2B SaaS development agencies headquartered in Washington, 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?

Webandcrafts, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most B2B SaaS development agencies?

New York leads the United States with 568 headquartered companies, followed by Austin (352) and Houston (253). Washington has 73.

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 282 verified decision-maker contacts tracked across these 73 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 23, 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.