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List of online-only businesses in California

Tamtam tracks 168 online-only businesses headquartered in California. This list ranks the 100 largest by number of employees on LinkedIn, led by Outlier, Work From Home Jobs and Netflix. Their median headcount is 1,307. Half of them were founded in 2012 or later. The most common headquarters are San Francisco (34), Los Angeles (13) and Mountain View (8).

馃嚭馃嚫 California100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Outlieroutlier.ai

Innovative team seeking talented individuals to advance AI technology through writing and deep expertise in various fields Join us in shaping the future of AI

Technology, Information and Internet 馃嚭馃嚫 San Francisco 28,673 2023
2
Work From Home Jobsworkfromhomejobs.me

A platform for remote job seekers to discover various work from home job opportunities from different sources in one place

Advertising Services 馃嚭馃嚫 Los Angeles 19,671 n/a
3
Netflixnetflix.com

A global entertainment service offering a wide range of TV shows, movies, and games in multiple genres and languages for millions of paid members worldwide

Entertainment Providers 馃嚭馃嚫 Los Gatos 18,533 1997
4
Free Online Coursesonlinetutorials.org

The company provides daily free online courses from top providers and universities, covering a wide range of categories with printable certificates

E-Learning Providers 馃嚭馃嚫 Los Alamitos 14,987 2016
5
Twitchtwitch.tv

A platform where diverse communities gather daily to support streamers, play beloved games, and connect with one another

Software Development 馃嚭馃嚫 San Francisco 14,817 2011
6
inDriveindrive.com

Global mobility platform offering urban services including ride-hailing, intercity transport, and delivery, challenging injustice through fair choices for communities.

IT Services and IT Consulting 馃嚭馃嚫 Mountain View 11,723 2013
7
Mediumjob-boards.greenhouse.io

It is a storytelling platform that values great writing, empowers readers, and operates on a subscription model without relying on ads.

Internet Publishing 馃嚭馃嚫 San Francisco 9,929 2012
8
Remotasksremotasks.com

Participate in cutting-edge AI projects, shape the future of AI tools, and contribute to smarter, faster, and safer AI models Gain valuable professional experience

Information Services 馃嚭馃嚫 San Francisco 8,140 2017
9
Stitch Fixstitchfix.com

Leading online personal styling service using expert stylists and recommendation algorithms to deliver curated clothing selections from exclusive and national brands.

Retail Apparel and Fashion 馃嚭馃嚫 San Francisco 8,000 2011
10
Elance-oDeskupwork.com

The company is the world's largest freelancing website, connecting freelancers with clients to complete various projects online

Technology, Information and Internet 馃嚭馃嚫 Mountain View 6,701 2014
11
Chegg Inc.chegg.com

A student-first connected learning platform in Santa Clara, CA, offering affordable tools and services for higher education success globally

Higher Education 馃嚭馃嚫 Santa Clara 6,664 n/a
12
PENNYMACpennymac.com

A top national online mortgage lender dedicated to offering competitive rates and superior service, with a mission to enable homeownership aspirations

Financial Services 馃嚭馃嚫 Westlake Village 5,491 2008
13
COMUNEthecomune.com

Innovative brand offering products that embody carefree idealism, embracing rawness and imperfections to push creative boundaries Supporting like-minded individuals

Wholesale 馃嚭馃嚫 Los Angeles 5,208 n/a
14
The Beachbody Companybodi.com

A leading digital fitness, nutrition, and mindset subscription company focused on promoting Health Esteem through innovative content, supplements, and support

Wellness and Fitness Services 馃嚭馃嚫 El Segundo 4,739 1998
15
Discorddiscord.com

A communication platform founded in 2015, connecting users through voice, video, and text in diverse communities without selling ads or user data

Software Development 馃嚭馃嚫 San Francisco 4,707 n/a
16
PodCast-> The Brutal Truth about Sales & Selling PodCast - on all your favorite PodCast Playersb2brevenue.com

A B2B Sales company offering a podcast on iTunes and Stitcher, as well as free resources on b2bREVENUEcom and YouTube channels

Media Production 馃嚭馃嚫 Menlo Park 4,378 2009
17
BetterHelpbetterhelp.com

Provides online therapy sessions through video, voice, chat, and messaging with licensed therapists to support mental health improvement.

Mental Health Care 馃嚭馃嚫 Mountain View 4,101 2013
18
Clipboardclipboardworks.com

Platform connecting healthcare facilities and schools with local professionals for unfilled shifts, improving care and offering flexible, higher-paying work.

Internet Marketplace Platforms 馃嚭馃嚫 San Francisco 3,716 2016
19
Self-Employedallbymyself.substack.com

This company offers AI and no-code tools for solopreneurs and freelancers to automate tasks, analyze data, and build digital solutions without coding experience

Technology, Information and Internet 馃嚭馃嚫 Los Angeles 3,464 n/a
20
The Millionaire Homemakerthemillionairehomemaker.com

Providing business consulting, education, resources, certification, and funding services to empower mothers to build successful financial empires while balancing work and family life

Consumer Services 馃嚭馃嚫 San Francisco 3,394 2011
21
Paidworkpaidwork.com

Offers free and online opportunities for people to work from anywhere

Financial Services 馃嚭馃嚫 Sacramento 3,138 2018
22
Work From Homejobeelo.com

Specializes in providing work from home job opportunities

Human Resources Services 馃嚭馃嚫 Modesto 3,037 n/a
23
Bloggerblogger.com

An American online platform for creating multi-user blogs with time-stamped entries, hosted by Google through a subdomain of blogspotcom

Technology, Information and Media 馃嚭馃嚫 Mountain View 2,842 1999
24
Nanny Carenannycare.com

A platform connecting families with pre-screened nannies and babysitters equipped with CPR/First Aid certifications, serving clients nationwide since 2000

Individual and Family Services 馃嚭馃嚫 Encinitas 2,817 2000
25
adplist.orgadplist.org

Global platform connecting mentors and mentees to democratize mentorship, offering career guidance through a large verified community worldwide.

Software Development 馃嚭馃嚫 San Francisco 2,382 2021
26
Course Herocoursehero.com

Online learning platform with study resources for all subjects, created by students, educators, and experts Support student learning for academic success

Technology, Information and Internet 馃嚭馃嚫 Menlo Park 2,335 2006
27
COCINAwearecocina.com

Certified minority-owned media engaging global multicultural audience with premier Latin food & lifestyle content, founded on uplifting Hispanic culture

Entertainment Providers 馃嚭馃嚫 Hawthorne 2,331 2017
28
Amazon Musicmusic.amazon.com

Immersive audio entertainment service connecting fans, artists, and creators through music, podcasts, and culture with curated playlists and exclusive content

Entertainment Providers 馃嚭馃嚫 San Francisco 2,239 n/a
29
topmate.iotopmate.io

Topmate facilitates personalized interactions by empowering professionals to manage incoming requests for advice or guidance, allowing them to share knowledge and wisdom seamlessly

Software Development 馃嚭馃嚫 San Francisco 2,070 2021
30
Upworkupwork.com

They provide a platform connecting companies with talent for various skills, helping individuals and businesses collaborate and achieve their full potential

Technology, Information and Internet 馃嚭馃嚫 Stanford 2,067 2015
31
hims & hersbit.ly

A multi-specialty telehealth platform connecting consumers to licensed healthcare professionals for various conditions like sexual health, hair care, mental health, and more

Wellness and Fitness Services 馃嚭馃嚫 San Francisco 2,022 2017
32
University of the Peopleuopeople.edu

A non-profit, tuition-free online university offering American accredited degrees, providing flexible and affordable education opportunities for students worldwide

Higher Education 馃嚭馃嚫 Pasadena 1,972 2009
33
Heatflaskheatflask.com

An app created by a single person to showcase recorded activities in a fun and insightful way, despite false claims of employment

Information Services 馃嚭馃嚫 Oakland 1,950 2016
34
Whatnotwhatnot.com

Largest livestream shopping platform connecting millions in US, UK, Europe to buy and sell diverse products across 250+ categories.

Technology, Information and Internet 馃嚭馃嚫 Los Angeles 1,924 2019
35
Brexbrex.com

AI-powered spend platform empowering finance teams to make smarter decisions with corporate cards, business accounts, global payments, and intuitive software for tracking expenses

Financial Services 馃嚭馃嚫 San Francisco 1,888 2017
36
Springboardspringboard.com

Empowering lifelong learning through personalized educational experiences, industry-guided projects, and mentor support for success in the evolving economy

E-Learning Providers 馃嚭馃嚫 San Francisco 1,846 2013
37
iHerbch.iherb.com

A dedicated team committed to making health and wellness accessible for all through a curated selection of products and a positive culture

Retail 馃嚭馃嚫 Irvine 1,795 1996
38
Turoturo.com

Turo is a car sharing marketplace connecting guests with hosts worldwide, offering a variety of vehicles for any occasion

Technology, Information and Internet 馃嚭馃嚫 San Francisco 1,781 2009
39
Fiverrfiverr.com

A global platform that connects businesses with freelance talent in a simple way

Software Development 馃嚭馃嚫 Stanford 1,755 2010
40
OptimHireoptimhire.com

Facilitating global collaboration, OptimHire revolutionizes the way professionals, recruiters, and companies work together anytime, anywhere across time zones and countries

Human Resources Services 馃嚭馃嚫 San Francisco 1,673 2018
41
Fairefaire.com

Helping brands and retailers enhance the distinctiveness of local communities through empowerment and support

Software Development 馃嚭馃嚫 San Francisco 1,577 2017
42
Pens.compens.com

A global provider of affordable custom promotional products, offering savings, flexibility, and perfect print promise to small businesses worldwide

Advertising Services 馃嚭馃嚫 San Diego 1,537 1966
43
Outschooloutschool.com

An innovative education platform offering engaging online classes for kids, taught live by experienced teachers, partnering with companies and schools

E-Learning Providers 馃嚭馃嚫 San Francisco 1,523 2015
44
Upworkupwork.com

A global platform connecting businesses with independent talent, unlocking potential through trust-driven collaboration across a wide range of skills

IT Services and IT Consulting 馃嚭馃嚫 Sunnyvale 1,487 n/a
45
Axos Bankaxosbank.com

This company empowers consumers and businesses in managing their financial lives through banking, borrowing, investing, and planning with an exceptional team

Banking 馃嚭馃嚫 San Diego 1,430 2000
46
LendingClublendingclub.com

Online platform providing unsecured personal installment loans to high-credit, high-income members, saving them money on credit costs.

Financial Services 馃嚭馃嚫 San Francisco 1,413 2006
47
Domestikadomestika.org

A fast-growing creative community offering online courses taught by experts, connecting millions of creative individuals worldwide to unleash their potential

Technology, Information and Internet 馃嚭馃嚫 Berkeley 1,387 2010
48
Neweggnewegg.com

A leading tech-focused e-retailer with a global presence offering consumer electronics, entertainment, smart home, and gaming products, known for excellent customer service

Retail 馃嚭馃嚫 Diamond Bar 1,341 2001
49
SHEIN Distribution Corporationsheingroup.com

Global online fashion retailer offering affordable apparel and lifestyle products through a worldwide vendor network, promoting accessible and smart fashion.

Retail Apparel and Fashion 馃嚭馃嚫 Los Angeles 1,317 2012
50
CarParts.comcarparts.com

Online retailer offering over one million auto parts with nationwide fulfillment centers, competitive prices, and user-friendly shopping experience.

Software Development 馃嚭馃嚫 Torrance 1,307 1995
51
GoFundMegofundme.com

A platform empowering individuals to raise funds for causes they care about, connecting a community of 200 million donors worldwide

Fundraising 馃嚭馃嚫 Redwood City 1,290 2010
52
Patreonpatreon.com

Supports creators in building communities, sharing exclusive work, and turning passions into sustainable businesses through direct fan support

Technology, Information and Internet 馃嚭馃嚫 San Francisco 1,263 2013
53
Elanceupwork.com

The company is the world's largest freelancing website, connecting businesses with skilled freelancers for various projects and tasks

Technology, Information and Internet 馃嚭馃嚫 Mountain View 1,261 n/a
54
Babylistbabylist.com

Digital destination for growing families, offering a full-service platform for expecting parents with products, services, guides, and content tailored to parenthood

Consumer Services 馃嚭馃嚫 Emeryville 1,218 2011
55
Quoracareers.quora.com

A Q&A platform aimed at democratizing access to knowledge by empowering people to share and grow the world's knowledge through online contributions

Technology, Information and Internet 馃嚭馃嚫 Mountain View 1,191 2009
56
Love.comlove.com

An online retail store offering products with a focus on nature and sustainability

Technology, Information and Internet 馃嚭馃嚫 Bay Area 1,128 2021
57
TSMtsmshop.com

Leader in esports with a record-breaking number of wins in LCS history, setting high standards and achieving success in competitive gaming

Entertainment Providers 馃嚭馃嚫 Los Angeles 1,122 n/a
58
BYJU鈥橲 Learningbyjusfutureschool.com

Provider of live online education tailored for children, offering interactive learning experiences in various subjects

E-Learning Providers 馃嚭馃嚫 San Francisco 1,087 n/a
59
Fastfast.co

Streamlining online shopping with a one-click checkout process Hassle-free registration and speedy checkouts in under a minute

Technology, Information and Internet 馃嚭馃嚫 San Francisco 1,062 2019
60
Military.commilitary.com

This company provides news, benefits information, and resources for military members, veterans, and their families through a free membership platform and mobile apps

Online Audio and Video Media 馃嚭馃嚫 San Francisco 1,029 1999
61
Eventbriteeventbrite.com

A global platform where users can create and attend events aligned with their interests, fostering passion and community engagement

Software Development 馃嚭馃嚫 San Francisco 993 n/a
62
Tubitubitv.com

Free ad-supported streaming service offering personalized access to over 275,000 movies, TV episodes, originals, and nearly 250 FAST channels.

Entertainment Providers 馃嚭馃嚫 San Francisco 956 2014
63
Weee!sayweee.com

Online platform delivering over 10,000 Asian and global grocery items directly to U.S. customers with focus on freshness and value.

Technology, Information and Internet 馃嚭馃嚫 Fremont 937 2015
64
Thrive Marketthrivemarket.com

A membership e-commerce platform providing natural and organic products at 30-50% off retail prices, with a give-back initiative included

Wellness and Fitness Services 馃嚭馃嚫 Los Angeles 901 2013
65
KAYUkayudesign.com

A company founded to preserve indigenous crafts, provide artisans with fair wages, and create sustainable, high-quality personal and home accessories

Retail Apparel and Fashion 馃嚭馃嚫 San Mateo 869 2011
66
PlanetArtplanetart.com

E-commerce platform offering affordable, high-quality personalized cards, gifts, wall art, apparel, and home d茅cor through global websites.

Technology, Information and Internet 馃嚭馃嚫 Calabasas 817 2010
67
Wall Street Oasiswallstreetoasis.com

A leading finance community offering online forums, courses, talent search, resume review, and mentorship services for business professionals worldwide

Financial Services 馃嚭馃嚫 Saratoga 811 2006
68
Tangobusiness.tango.me

social live-streaming app connecting creators and audiences worldwide, offering real-time entertainment, discovery, and digital economy features

Consumer Services 馃嚭馃嚫 Mountain View 793 n/a
69
Evalinktr.ee

An AI-driven platform offers holistic solutions to maximize profits, traffic, conversion, and availability on Amazon and other marketplaces

Technology, Information and Internet 馃嚭馃嚫 San Diego 772 2020
70
Export Portalexportportal.com

An international trading platform offering secure exporting, importing, online shopping, and B2B partnerships with seller/buyer protection and business opportunities since 2011

Wholesale Import and Export 馃嚭馃嚫 Glendale 770 2011
71
Futurefuture.co

Customized personal training designed to meet the unique needs and schedule of each individual Tailored to fit your lifestyle and goals

Wellness and Fitness Services 馃嚭馃嚫 San Francisco 770 2017
72
Clothing Shop Onlineclothingshoponline.com

An online clothing shop focused on providing everyday essentials at wholesale prices, with a strong emphasis on community and efficiency

Retail Apparel and Fashion 馃嚭馃嚫 Hermosa Beach 763 2012
73
Backstagebackstage.com

This company connects creators with talent for various creative projects worldwide, including film, TV, commercials, theater, and more, promoting accessibility and collaboration

Online Audio and Video Media 馃嚭馃嚫 Burbank 761 1960
74
Rooroo.vet

Innovative online platform empowering veterinary professionals by providing control over work placement and transforming animal healthcare workplace

Hospitals and Health Care 馃嚭馃嚫 San Francisco 755 2019
75
EVERYTHINGeverythingthebrand.com

A platform bridging creatives and entrepreneurs, inspiring others to pursue their passion regardless of constraints through sharing stories and experiences

Retail Apparel and Fashion 馃嚭馃嚫 Berkeley 751 n/a
76
NerdWalletnerdwallet.com

Financial clarity for consumers and SMBs, remote-first inclusive workplace, career growth programs, pay equity reviews, employee resource groups, and corporate social responsibility initiatives

Consumer Services 馃嚭馃嚫 San Francisco 731 2009
77
Calmcalm.com

A leading mental wellness brand with the #1 app for sleep, meditation, and relaxation, helping users manage stress and live healthier lives globally

Mental Health Care 馃嚭馃嚫 San Francisco 730 2012
78
Educator.comeducator.com

An online platform offering high-quality lectures by top educators in math, science, and programming to help students succeed in their courses

E-Learning Providers 馃嚭馃嚫 Los Angeles 728 2008
79
Midi Healthjoinmidi.com

A virtual care platform focused on female midlife health, offering personalized care plans and integrating with insurance and employers for accessibility

Hospitals and Health Care 馃嚭馃嚫 Palo Alto 712 2021
80
MusicCareersmusiccareers.co

Global music industry job site connecting professionals with opportunities worldwide, including remote, freelance, internships, and volunteer roles Easy job posting for employers

Technology, Information and Internet 馃嚭馃嚫 San Francisco 708 2021
81
Soothesoothe.com

Leading wellness marketplace connecting clients with personalized wellness providers offering on-demand massage, skincare, hair, and beauty services in various US markets

Internet Marketplace Platforms 馃嚭馃嚫 Los Angeles 689 2013
82
Animation Jobsanimatedjobs.com

A reputable platform with high traffic and a large animator following, trusted by major animation studios worldwide, predominantly accessed by UK and North American visitors

Animation 馃嚭馃嚫 Los Angeles 674 2010
83
JustAnswerjustanswer.com

A leading expert marketplace connecting millions with professionals like doctors and lawyers, providing fast, affordable expert help globally Revolutionizing professional services accessibility

Technology, Information and Internet 馃嚭馃嚫 Covina 669 2003
84
Pluto TVstatic-homepage-en.pluto.tv

Free streaming television service offering hundreds of live channels and thousands of on-demand titles across multiple devices worldwide.

Entertainment Providers 馃嚭馃嚫 West Hollywood 667 n/a
85
Mercari USmercari.com

Mobile marketplace platform facilitating buying and selling globally, focused on putting money in sellers' pockets and reducing waste through positive outcomes

Software Development 馃嚭馃嚫 Palo Alto 659 2014
86
DeviantArt, Inc.

A social platform for artists to exhibit, promote, and share their works with a supportive community, encouraging creativity and self-expression

Technology, Information and Internet 馃嚭馃嚫 Los Angeles 642 2000
87
Build with Fergusonbuild.com

The company is a fast-growing online home improvement retailer that offers a diverse and innovative work environment with competitive compensation and benefits

Retail 馃嚭馃嚫 Chico 633 n/a
88
Davedave.com

This company fights for fair banking by eliminating overdraft fees, providing advances, goal tracking, and side hustle opportunities for members

Financial Services 馃嚭馃嚫 Los Angeles 623 2016
89
IPSYipsy.com

A beauty platform uniting brands, creators, and consumers through unique subscriptions and products, leveraging technology to deliver personalized experiences

Consumer Services 馃嚭馃嚫 Santa Monica 616 2011
90
Binance Exchangebinance.us

A regulated marketplace in the US offering trading of over 30 cryptocurrencies with USD and stablecoins, through an app, website, or APIs

Financial Services 馃嚭馃嚫 San Francisco 615 2019
91
Free Online Courses With Printable Certificatescouponseagle.com

A website offering a wide range of free online courses, constantly updated with new content, aimed at providing valuable learning opportunities

E-Learning Providers 馃嚭馃嚫 California 610 n/a
92
Bleacher Reportbleacherreport.com

A global digital platform for millennial sports fans, creating content at the intersection of sports and culture Headquarters in San Francisco

Spectator Sports 馃嚭馃嚫 San Francisco 596 n/a
93
EarnInearnin.com

Financial technology company offering Earned Wage Access app for accessing money earned, with tools for credit monitoring, savings, and low-balance protection

Financial Services 馃嚭馃嚫 Mountain View 592 2012
94
Acornsacorns.com

Acorns helps everyday consumers save and invest for the long term by offering automated investing, simple retirement products, a bank account, and bonus investments

Financial Services 馃嚭馃嚫 Irvine 588 2012
95
Ediktededikted.com

We design affordable, on-trend fashion that embraces quality and style Our focus is on delivering coveted styles for all sizes and inspiring uniqueness

Retail Apparel and Fashion 馃嚭馃嚫 Los Angeles 586 2020
96
Torre.aitorre.ai

Utilizing AI for recruitment and job search optimization, letting technology handle the process efficiently and effectively

Staffing and Recruiting 馃嚭馃嚫 San Francisco Bay Area 570 2017
97
Rakuten Vikiviki.com

A global ecommerce and entertainment company offering a wide range of services, including streaming, e-commerce, banking, and online marketing solutions

Entertainment Providers 馃嚭馃嚫 San Mateo 550 2010
98
Platziplatzi.com

Online education platform developing AI and tech talent in Latin America, providing courses in AI, cybersecurity, programming, leadership, marketing, design, business.

E-Learning Providers 馃嚭馃嚫 San Francisco 515 2012
99
Wealthfrontwealthfront.com

Integrates investing, savings products for long-term wealth; delivers high-yield savings, diversified ETF, bond ETF, zero-commission stock investing, low-cost loans.

Financial Services 馃嚭馃嚫 Palo Alto 439 2011
100
Grove Collaborativegrove.co

A sustainable online retailer offering vetted brands across cleaning, wellness, and everyday essentials, prioritizing environmental and social responsibility

Retail 馃嚭馃嚫 San Francisco 410 2012

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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 Oct 24, 2026.

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