The 72 Most Popular SaaS Startups from Seattle (2026)

Seattle is home to 72 SaaS and AI products actively bought by companies on Cledara, led by Outreach (0.07% market share). This ranking is built from real purchasing data — what companies actually pay for, not funding announcements — and updates monthly. Data as of 27 July 2026, 17:44 UTC.

Top SaaS companies from Seattle

#ProductCategoryFoundedEmployeesFunding12-mo rank
1OutreachMarketing & Growth2,014501-1,000 employees-6
2ReadCollaboration & Productivity2,02151-200 employees$50M - $100M+24
3PulumiEngineering & DevOps2,01751-200 employees$25M - $50M+569
4MotherDuckData & Analytics2,02251-200 employees$50M - $100M
5SpeechAceAI Platforms & Model Ops2,0142-10 employees
6PollyCollaboration & Productivity2,01511-50 employees-3
7PrerenderMarketing & Growth2,01411-50 employees-308
8BlitlineEngineering & DevOps2,0112-10 employees
9IPInfoData & Analytics2,01351-200 employees-22
10DMARCLYIT & Security2,0182-10 employees-34
11HuntrPeople Ops & Talent2,0172-10 employees+33
12HostedScanIT & Security2,0192-10 employees-63
13SingleFileLegal, Risk & Compliance2,01911-50 employees$10M - $25M+787
14OnehubCollaboration & Productivity2,00711-50 employeesUnder $1M-372
15TermlyLegal, Risk & Compliance2,01711-50 employees-136
16Data MinerData & Analytics2,011+282
17SkyKickIT & Security2,01151-200 employees-89
18ScreenPalCollaboration & Productivity2,00611-50 employees+407
19Row ZeroData & Analytics2,02211-50 employees$10M - $25M
20VocusSales & Revenue2,0162-10 employees-271
21WordtuneMarketing & Growth2,00951-200 employees
22BalenaEngineering & DevOps2,01351-200 employees$10M - $25M
23SparkToroMarketing & Growth2,0182-10 employees$1M - $5M
24ChatlioCustomer Success & Support2,015
25ZuploEngineering & DevOps2,02111-50 employees$5M - $10M
26WellSaid LabsAI Platforms & Model Ops2,01851-200 employees$10M - $25M
27PicMonkeyMarketing & Growth2,01211-50 employees$25M - $50M
28PitchBookFinance & Accounting2,0071,001-5,000 employees$10M - $25M
29HowieCollaboration & Productivity2,0232-10 employees$5M - $10M
30PlusCollaboration & Productivity2,02111-50 employees$1M - $5M
31Ultravox.aiCollaboration & Productivity2,02211-50 employees
32TableauData & Analytics2,0031,001-5,000 employees
33SimplesatCustomer Success & Support2,01611-50 employees
34UberduckAI Platforms & Model Ops2,0212-10 employeesUnder $1M
35DomainToolsIT & Security2,00451-200 employees
36KaitoData & Analytics2,02211-50 employees$5M - $10M
37Meeting Room 365Collaboration & Productivity2,0162-10 employees
38Rival IQMarketing & Growth2,01311-50 employeesUnder $1M
39ValidarMarketing & Growth2,00511-50 employees
40PipelineDealsSales & Revenue2,00611-50 employees$1M - $5M
41WhitepagesSales & Revenue1,99711-50 employeesUnder $1M
42RescueTimeCollaboration & Productivity2,00811-50 employeesUnder $1M
43ZuperOperations & Supply Chain2,019201-500 employees$25M - $50M
44ServerPilotIT & Security2,01211-50 employees
45LudoAI Platforms & Model Ops2,0202-10 employees
46GreenvelopeMarketing & Growth2,00811-50 employees
47QA WolfEngineering & DevOps2,01951-200 employees$50M - $100M
48ShufflCollaboration & Productivity2,0202-10 employees
49KickofflabsMarketing & Growth2,0112-10 employees$1M - $5M
50Treble.aiMarketing & Growth2,01951-200 employees$10M - $25M

Showing the top 50 of 72 companies. The interactive page loads the full ranking, and the complete list is available as <a href="/api/export/startups/united-states/seattle.csv">CSV</a> or <a href="/api/export/startups/united-states/seattle.json">JSON</a>.

Seattle startups by size and funding

The largest SaaS company from Seattle by headcount is Amazon (10,001+ employees).

35 of 72 have disclosed funding, topped by Veeam Software ($250M+).

The newest entrant is Howie (founded 2023).

The oldest is Costco (founded 1983); the newest, Howie (2023).

What Seattle startups build

CategoryProducts
Marketing & Growth15
Collaboration & Productivity12
IT & Security12
Data & Analytics6
Engineering & DevOps5
AI Platforms & Model Ops4
Legal, Risk & Compliance3
Sales & Revenue3
Other3
People Ops & Talent2
Customer Success & Support2
Finance & Accounting2
Operations & Supply Chain2

Seattle's SaaS scene skews toward Marketing & Growth — 15 of its 72 tracked companies build marketing & growth software.

Seattle vs the United States

Seattle accounts for 2% of the 3,460 ranked SaaS products founded in the United States.

Frequently asked questions

What are the biggest SaaS startups in Seattle?

Outreach, Read and Pulumi are the most-used SaaS products founded in Seattle, based on real purchasing data from companies on Cledara. Last updated 27 July 2026, 17:44 UTC.

How many SaaS companies are based in Seattle?

72 SaaS and AI products founded in Seattle are actively bought by companies tracked on Cledara. Aggregators list more registered startups; this ranking counts only products with real, current usage.

Which Seattle startups are growing fastest?

MotherDuck and Blitline show the strongest rank gains among Seattle-founded products over the last 90 days.

How is this different from other Seattle startup lists?

Most lists rank Seattle startups by funding raised or valuation. This one ranks them by adoption — how many companies actually pay for each product — measured monthly from Cledara's purchasing data.