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List of companies with a mobile app in Washington State

Tamtam tracks 128 companies with a mobile app headquartered in Washington State. This list ranks the 50 largest by number of employees on LinkedIn, led by Amazon, Costco Wholesale and Microsoft. Their median headcount is 7,615. Half of them were founded in 1983 or later. The most common headquarters are Seattle (23), Bellevue (8) and Tacoma (4).

馃嚭馃嚫 Washington State50 companiesUpdated Nov 11, 2026

These companies with a mobile app in Washington State are predominantly large enterprises, with a strong presence in software development and retail. Amazon, an e-commerce giant, leads the list, alongside Microsoft, which develops software and cloud services. Retail is well represented by Costco Wholesale, a global warehouse club, and Starbucks, known for its coffee shops. T-Mobile provides wireless services, and Expedia Group operates in the travel technology sector.

A clear pattern is the concentration of headquarters in Seattle, which hosts a significant number of these large companies. Redmond and Bellevue also feature as key locations for major tech and telecommunications firms.

#CompanyIndustryHeadquarters EmployeesFounded
1
Amazonamazon.com

An e-commerce giant offering a vast selection of products, convenient shopping experiences, and fast delivery, connecting buyers with a wide range of sellers

Software Development 馃嚭馃嚫 Seattle 1,541,000 n/a
2
Costco Wholesalecostco.com

Global warehouse club retailer operating in multiple countries, focusing on quality, ethics, employee success, and customer service excellence.

Retail 馃嚭馃嚫 Seattle 304,000 1983
3
Microsoftmicrosoft.com

Develops and sells software, hardware, and cloud services, including the Windows operating system and Office suite, to improve productivity and digital experiences

Software Development 馃嚭馃嚫 Redmond 233,562 n/a
4
Starbucksstarbucks.com

The company focuses on creating positive change in the world by providing a welcoming environment for employees to grow their careers and community connections

Retail 馃嚭馃嚫 Seattle 190,713 1971
5
Amazon Web Services (AWS)amazon.com

A global cloud computing provider offering scalable, reliable, and cost-effective infrastructure services to businesses worldwide, eliminating the need for capital infrastructure expenses

IT Services and IT Consulting 馃嚭馃嚫 Seattle 147,090 2006
6
T-Mobilecareers.t-mobile.com

Leading US wireless provider delivering advanced 4G LTE and nationwide 5G networks, prioritizing customer value, service excellence, and innovation in Bellevue, Washington

Telecommunications 馃嚭馃嚫 Bellevue 96,232 n/a
7
Nordstromnordstrom.com

Empowering employees to achieve success through hard work, leadership, and dedication to customer service Committed to environmental sustainability and community support

Retail 馃嚭馃嚫 Seattle 48,381 1901
8
Expedia Groupcareers.expediagroup.com

A tech company in the travel industry creating unforgettable experiences, empowering travelers worldwide, and committed to inclusivity and accessibility

Software Development 馃嚭馃嚫 Seattle 21,829 n/a
9
Providence Health & Servicesprovidence.org

A healthcare organization focused on providing compassionate care through a network of hospitals, clinics, and services across multiple states

Hospitals and Health Care 馃嚭馃嚫 Renton 20,360 n/a
10
Amazon Businessbusiness.amazon.com

Simplified procurement platform offering extensive product selection and innovative tools to meet diverse organizational purchasing needs at any growth stage.

Retail 馃嚭馃嚫 Seattle 15,896 n/a
11
Alaska Airlinesalaskaair.com

Passenger airline providing exceptional service through dedicated employees, focusing on safety, customer care, and community engagement.

Airlines and Aviation 馃嚭馃嚫 Seattle 13,396 n/a
12
TrueBlue Inc.trueblue.com

Staffing, recruiting, and workforce management services for diverse industries, providing reliable and efficient workforce solutions daily.

Staffing and Recruiting 馃嚭馃嚫 Tacoma 12,447 1989
13
Rover.comrover.com

The company connects pet owners with loving pet sitters and walkers to make experiencing the unconditional love of a pet easier

Consumer Services 馃嚭馃嚫 Seattle 11,723 2011
14
Banfield Pet Hospitalbanfield.com

Providing high-quality preventive veterinary care and wellness plans to millions of pets across multiple locations in the United States and beyond.

Veterinary Services 馃嚭馃嚫 Vancouver 11,294 1955
15
City of Seattleseattle.gov

Providing diverse public services across multiple departments to support community well-being, infrastructure, and inclusive city development.

Government Administration 馃嚭馃嚫 Seattle 10,924 n/a
16
Zillowzillow.com

It reimagines real estate transactions, simplifying the process of buying, selling, renting, and financing homes through advanced technology and connections.

Real Estate 馃嚭馃嚫 Seattle 10,321 2006
17
REIrei.com

A company that inspires and enables people to embrace the outdoors by providing gear, advice, rentals, and outdoor experiences while supporting sustainability

Retail 馃嚭馃嚫 Seattle 9,958 1938
18
Coupangaboutcoupang.com

Disrupting commerce industry, providing unparalleled customer experience with innovative services and bold initiatives in a startup culture within a global company

Software Development 馃嚭馃嚫 Seattle 9,347 2010
19
Holland America Linehollandamerica.com

A leader in cruising for 150 years, offering once-in-a-lifetime experiences to exotic destinations worldwide, with a fleet of 11 modern classic ships

Travel Arrangements 馃嚭馃嚫 Seattle 8,882 1873
20
Savers | Value Villagesavers.com

A team of thrifters providing fulfilling opportunities to grow Making a real impact through creative, dynamic, and fun work environments

Retail 馃嚭馃嚫 Bellevue 8,554 n/a
21
TikTok Shopseller-us.tiktok.com

Facilitating commerce on TikTok by providing merchants and creators with a platform to showcase and sell products directly within the app

Technology, Information and Internet 馃嚭馃嚫 Bellevue 8,527 n/a
22
PeopleReadypeopleready.com

Revolutionizing the way people connect with work through innovative solutions Join our award-winning team - explore open positions now

Staffing and Recruiting 馃嚭馃嚫 Tacoma 8,371 n/a
23
Windermere Real Estatewindermere.com

Leading residential real estate network in the Western US with 300+ offices and 6,500+ associates dedicated to improving communities Supporting low-income and homeless families through the Windermere Foundation

Real Estate 馃嚭馃嚫 Seattle 7,859 1972
24
Nintendonintendo.com

This company creates video games and entertainment to bring joy to people worldwide, building on a legacy of innovation and fun

Computer Games 馃嚭馃嚫 Redmond 7,706 1980
25
Wendy'swendys.com

This company is based in Washington, US and specializes in serving old-fashioned hamburgers

Consumer Services 馃嚭馃嚫 Auburn 7,615 n/a

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26
Prime Video & Amazon MGM Studiosamazonstudios.co.uk

The company focuses on delivering top-tier digital video customer experiences, creating original films and series for a global audience

Entertainment Providers 馃嚭馃嚫 Seattle 7,510 n/a
27
SAP Concurconcur.com

Offers integrated solutions for travel, expense, and invoice management, automating everyday processes and providing insights into spending, compliance, and budget blind spots.

Software Development 馃嚭馃嚫 Bellevue 6,588 n/a
28
Virginia Mason Franciscan Healthvmfh.org

Integrated health system in Washington state with 11 hospitals and nearly 300 sites, providing high-quality care through a team of 18,000 staff and 5,000 physicians

Hospitals and Health Care 馃嚭馃嚫 Tacoma 5,999 n/a
29
Redfinredfin.com

A technology-driven real estate company offering brokerage, lending, title insurance, renovations, and rental services across the US and Canada

Real Estate 馃嚭馃嚫 Seattle 5,652 2006
30
Zumiezzumiez.com

Specialty retailer offering apparel, footwear, accessories, and hardgoods for young individuals seeking to express their unique style and individuality

Retail 馃嚭馃嚫 Lynnwood 5,240 1978
31
MOD Pizzamodpizza.com

A Seattle-based pizza company founded in 2008, prioritizing individual style, value, and community through their dedicated employees, the MOD Squad

Restaurants 馃嚭馃嚫 Bellevue 4,042 2008
32
Washington State Department of Transportationwsdot.wa.gov

The company improves Washington's transportation system by maintaining highways, ferries, and more, while focusing on strategic investments, sustainability, and efficiency

Government Administration 馃嚭馃嚫 Olympia 3,609 1905
33
Premera Blue Crosspremera.com

Leading health plan in the Pacific Northwest providing comprehensive health benefits and tailored services for individuals and companies, improving lives through better healthcare solutions.

Insurance 馃嚭馃嚫 Mountlake Terrace 3,473 1933
34
Banner Bankbannerbank.com

A community bank offering comprehensive financial services in Oregon, Washington, California, and Idaho with a focus on individual service and competitive products

Banking 馃嚭馃嚫 Walla Walla 3,016 1890
35
BECUbecu.org

A member-owned, not-for-profit financial cooperative putting people over profit, prioritizing members' and employees' needs, and emphasizing work satisfaction

Banking 馃嚭馃嚫 Tukwila 2,934 1935
36
Seabourn Cruise Lineseabourn.com

Luxurious and intimate cruise experiences to desirable destinations worldwide, offering exceptional service, dining, and spa facilities for a unique travel experience

Travel Arrangements 馃嚭馃嚫 Seattle 2,367 1988
37
King County Metro Transitkingcounty.gov

A leading agency in King County providing innovative and sustainable public transportation services to connect people with communities and improve quality of life

Truck Transportation 馃嚭馃嚫 Wa 1,890 1973
38
CHI Franciscan Healthvmfh.org

The company focuses on creating personalized and convenient healthcare experiences through a combination of people, capabilities, and technology

Hospitals and Health Care 馃嚭馃嚫 Tacoma 1,820 n/a
39
Tableautableau.com

Provides software tools enabling users to visualize, analyze, and interpret data for better decision-making and actionable insights.

Software Development 馃嚭馃嚫 Seattle 1,788 2003
40
Valve corporationvalvesoftware.com

Develops entertainment software, game engine, and a leading digital content platform. Also creates cutting-edge VR products and hardware devices for gaming.

Computer Games 馃嚭馃嚫 Bellevue 1,843 1996
41
NCSOFT Westncsoft.com

A global publisher of popular online and mobile games, dedicated to bringing entertainment and happiness to millions of players worldwide

Computer Games 馃嚭馃嚫 Bellevue 1,739 n/a
42
Avistamyavista.com

Provider of energy services, electricity, and natural gas to customers in a service territory spanning 30,000 square miles across multiple states

Utilities 馃嚭馃嚫 Spokane 1,624 n/a
43
Outreachoutreach.ai

It provides a comprehensive sales execution platform that enhances efficiency in prospecting, deal management, and forecasting for revenue teams.

Software Development 馃嚭馃嚫 Seattle 1,579 2014
44
Funkofunko.com

A leading pop culture lifestyle brand offering vinyl figures, toys, apparel, NFTs, and more, connecting fans with their favorite entertainment franchises worldwide

Consumer Goods 馃嚭馃嚫 Everett 1,415 1998
45
WaFd Bankwafdbank.com

A long-standing national bank dedicated to building healthy communities by providing straightforward banking solutions for clients since 1917

Banking 馃嚭馃嚫 Seattle 1,405 1917
46
St John WAstjohnwa.com.au

A charitable organization providing high-quality first aid services in Western Australia for over 130 years, through career paramedics and volunteer services

Hospitals and Health Care 馃嚭馃嚫 Belmont 1,378 1887
47
Accolade, Inc.accolade.com

Personalized healthcare company focused on connecting employees to tailored care through relationships, intelligent technology, and data insights for improved outcomes

Hospitals and Health Care 馃嚭馃嚫 Seattle 1,341 2020
48
Washington Trust Bankwatrust.com

A community-driven bank, focused on building relationships and providing rewarding careers, serving individual, business, and wealth management clients

Banking 馃嚭馃嚫 Spokane 1,299 1902
49
Keka HRkeka.com

Provides a unified HR and payroll platform to manage people operations, including hiring, time, performance, and core HR workflows for various organizations.

Software Development 馃嚭馃嚫 Seattle 1,249 2015
50
Zenotizenoti.com

Cloud-based software for spa, salon, and med spa industries worldwide, offering solutions for appointment booking, POS, CRM, inventory, marketing, and more

Software Development 馃嚭馃嚫 Bellevue 1,209 2010

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

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