Social Media Platforms startups in San Francisco

52 companies. All San Francisco startups.

All 2327 Mobile447 SaaS285 E-Commerce196 Enterprise Software194 Marketplaces194 Social Media190 Big Data135 Digital Media114 Education104 Analytics88 Social Commerce84 Advertising83 Health Care76 Mobile Commerce76 Small and Medium Businesses66 Financial Services62 Recruiting61 Software60 Bridging Online and Offline58 Mobile Games58 Cloud Computing56 Consumer Internet56 Health and Wellness54 Video54 Social Media Platforms52 Food and Beverages51 Health Care Information Technology51 Developer Tools49 Fashion49 Consumer Electronics47 Location Based Services47 Social Games47 B2B46 Local46 Sales and Marketing46 Music43 Developer APIs42 Finance Technology42 Mobile Advertising42 Crowdsourcing41 Payments41 Big Data Analytics40 Bitcoin40 Personal Health40 Productivity Software40 Collaborative Consumption39 Games39 Real Estate39 Collaboration37 Hardware37 Internet of Things37 Advertising Platforms36 Curated Web36 Mobile Health36 Online Travel36 Human Resources35 Application Platforms34 CRM34 Messaging33 Photo Sharing33 Social Media Marketing33 Finance32 Mobile Payments32 Peer-to-Peer32 Communities31 Crowdfunding30 Events29 Machine Learning29 Retail Technology29 Sports29 iPhone28 Startups28 Transportation28 K-12 Education27 Private Social Networking27 Publishing27 Technology26 Fitness25 Android24 Ventures for Good24 Brand Marketing23 Email23 Automotive22 Consumer Goods22 Content Discovery22 Restaurants22 Search22 Security22 Content21 Photography21 Professional Networking21 Travel21 Cloud Data Services20 Cloud Infrastructure20 Development Platforms20 Lead Generation20 Parenting20 Retail20 Design19 Kids19 Reviews and Recommendations19 Sales Automation19 iOS18 Logistics18 Subscription Businesses18 Venture Capital18 Business Intelligence17 Clean Technology17 Hospitality17 News17 Online Dating17 Personal Finance17 Personalization17 Predictive Analytics17 Web Development17 E-Commerce Platforms16 Social Recruiting16 Video Games16 Legal15 Loyalty Programs15 Online Video Advertising15 Real Time15 Social Travel15 Business Productivity14 Hardware + Software14 Mobile Enterprise14 Nonprofits14 Quantified Self14 Video Streaming14 Apps13 Data Mining13 Market Research13 Medical13 Mobile Analytics13 PaaS13 User Experience Design13 Entertainment Industry12 Internet Infrastructure12 iPad12 Social Network Media12 Business Services11 Chat11 Commercial Real Estate11 Customer Service11 Customer Support Tools11 Facebook Applications11 Insurance11 Internet TV11 Artificial Intelligence10 Audio10 Cloud Management10 College Recruiting10 Electric Vehicles10 Families10 Film10 Hotels10 Marketing Automation10 Medical Devices10 Online Reservations10 Point of Sale10 Product Design10 Social CRM10 Wine And Spirits10 3D Printing9 Accounting9 Agriculture9 Angels9 Augmented Reality9 Biotechnology9 Career Management9 Entertainment9 Gamification9 Groceries9 Lifestyle9 Music Services9 Networking9 Social Fundraising9 Ticketing9 University Students9 Women-Focused9 Art8 Banking8 Blogging Platforms8 Business Analytics8 Consumer 8 Corporate Wellness8 Deep Information Technology8 Elder Care8 Email Marketing8 Fantasy Sports8 Geospatial8 Health and Insurance8 Open Source8 Pets8 Social News8 Telecommunications8 Wearables8 Web Tools8 3D7 3D Technology7 Bioinformatics7 Consumer Lending7 Content Delivery7 Databases7 Deals7 Drones7 Educational Games7 Energy Efficiency7 Knowledge Management7 Local Businesses7 Online Shopping7 Optimization7 Psychology7 Real Estate Investors7 Semantic Search7 Shipping7 Tablets7 Video Chat7 VoIP7 Aerospace6 Artists Globally6 Beauty6 Clean Energy6 Cooking6 Corporate Training6 Data Visualization6 Local Advertising6 Marijuana6 Natural Language Processing6 Online Scheduling6 Pharmaceuticals6 Project Management6 Rental Housing6 Robotics6 Sensors6 Sharing Economy6 SMS6 Solar6 Sustainability6 Twitter Applications6 Virtual Currency6 Web CMS6 Baby Boomers5 Batteries5 Blockchains5 Broadcasting5 Casual Games5 Cloud-Based Music5 Communications Infrastructure5 Computer Vision5 Contact Management5 Content Marketing5 Credit Cards5 Data Integration5 Document Management5 E-Books5 Emerging Markets5 Employer Benefits Programs5 Enterprise Security5 Entrepreneur5 Event Management5 Fraud Detection5 Gift Card5 Google Glass5 Information Technology5 Infrastructure5 Language Learning5 Local Commerce5 Local Services5 Mens Specific5 Mobile Coupons5 Neuroscience5 Nightlife5 Nutrition5 Operating Systems5 Outdoors5 P2P Money Transfer5 Personal Branding5 Politics5 Presentations5 Public Relations5 Public Transportation5 Reputation5 Social Television5 Specialty Foods5 Storage5 Task Management5 Teenagers5 Virtual Workforces5 Web Design5 Ad Targeting4 Advertising Exchanges4 App Stores4 Career Planning4 College Campuses4 Construction4 Consulting4 Coupons4 Credit4 Diagnostics4 Digital Entertainment4 Doctors4 Energy4 Enterprise Resource Planning4 File Sharing4 Financial Exchanges4 Freemium4 Green4 Heathcare4 High School Students4 Identity Management4 Incubators4 Information Services4 Innovation Management4 Interest Graph4 Interior Design4 Internet Marketing4 Investment Management4 Local Search4 Maps4 Marketing4 Media4 MMO Games4 Mobile Devices4 Mobile Security4 Mobile Social4 New Product Development4 Office Space4 Organic Food4 Parking4 Performance Marketing4 Services4 Social4 Social Search4 Supply Chain Management4 Synthetic Biology4 Training4 Translation4 Vacation Rentals4 Virtualization4 Visualization4 Water4 Web Hosting4 Wireless4 Active Lifestyle3 App Discovery3 Architecture3 Auctions3 Billing3 Brain Health3 Business Development3 Cars3 Coffee3 Colleges3 Concerts3 Consumers3 Conversion Optimization3 Creative3 Data Security3 Deep Learning3 Direct Sales3 Distribution3 DIY3 Edutainment3 Electronics3 Email Newsletters3 Embedded Hardware and Software3 Employment3 Enterprise 2.03 Financial Technology3 Flash Sales3 Forums3 Freelancers3 Gadget3 Gambling3 Genetic Testing3 Global3 Government Innovation3 Governments3 Group Buying3 Higher Education3 Home Automation3 Human Computer Interaction3 IaaS3 Identity3 Infrastructure Monitoring3 Internet3 Jewelry3 Law Enforcement3 Local Discovery3 Manufacturing3 Mass Customization3 Mobile Search3 Mobile Video3 Monetization3 Musicians3 Online Rental3 Personal Data3 Photo Editing3 Privacy3 Procurement3 Professional Services3 Public Safety3 QR Codes3 Remittance3 Self Development3 Smart Home3 Social Bookmarking3 Social Business3 Social Media Monitoring3 Tech Field Support3 Television3 Temporary Staffing3 Textbooks3 Transaction Processing3 Tutoring3 Video Conferencing3 Virtual Goods3 Virtual Worlds3 Windows Phone 73 Adtech2 Adventure Travel2 Advertising Networks2 Auto2 B2B Express Delivery2 Babies2 Bicycles2 Bitcoin Mining2 Boating Industry2 Brokers2 Browser Extensions2 CAD2 Call Center Automation2 Cause Marketing2 Celebrity2 Clinical Trials2 Comparison Shopping2 Connected Devices2 Content Creators2 Coworking2 Creative Industries2 Data2 Dating2 Dietary Supplements2 Digital Currency2 Digital Health2 Direct Marketing2 Displays2 Disruptive Models2 E Learn2 Edtech2 Education Technology2 Electronic Health Records2 Energy Management2 Energy Storage2 Enterprise Search2 Enterprises2 Exercise2 Film Distribution2 Fin Tech2 Flowers2 Game2 Genealogy Market Worldwide2 Google Apps2 Governance2 Gps2 Graphics2 Guides2 Home Decor2 Home Renovation2 Hospitals2 Human Resource Automation2 Image Recognition2 Independent Music2 Independent Music Labels2 Influencer Marketing2 Insurance Companies2 Interface Design2 Internet Radio2 Invest Online2 Journalism2 Latin America2 Licensing2 Lifestyle Products2 Match-Making2 Medication Adherence2 mHealth2 MicroBlogging2 Mobile Application2 Mobile Software Tools2 Mortgage2 Native Advertising2 Non Profit2 Offline Businesses2 Online Gaming2 Patient Management2 Payment Systems2 Price Comparison2 Printing2 Promotional2 Property Management2 Risk Management2 Sales2 Same Day Delivery2 Science2 Search Marketing2 Semantic Web2 Senior Health2 SEO2 Service Providers2 Skill Gaming2 Soccer2 Social Innovation2 Social Media Advertising2 Social Media Management2 Social Network2 Software Engineering2 Sponsorship2 Stock Exchanges2 Technical Continuing Education2 Telephony2 Tracking2 Trading2 Unifed Communications2 Unmanned Air Systems2 Usability2 Utilities2 Vending and Concessions2 Video Editing2 Waste Management2 Web Browsers2 Wholesale2
Puddle

Puddle

Credit powered by people.Puddle is the first tool for credit in the US that anyone can use – not based on your credit score, but based on people that trust you.

Social Media Platforms · Consumer Lending
Socialize

Socialize

Identify and reward your most influential users with our drop-in social platform.Sold to ShareThis in 2013 ================= Smartphones and tablets are the most powerful and intimate ways ever invented to connect businesses to their customers. Companies that…

Mobile · Mobile Advertising · Social Media Platforms · Interest Graph
Ark

Ark

Modern People Search Engine. YC W2012. Ark.comArk is a modern people search engine. · 30% of all online searches are people searches. · Ark enables users to search for new friends, find old classmates, and expanding their pro…

Social Media · Search · Social Media Platforms · Mobile Search
Nuzzel

Nuzzel

The super-easy way to see news from your friendsNuzzel is the super-easy way to see news from your friends. Nuzzel is a new social news service founded by the creator of Friendster, and backed by Andreessen Horowitz, Charles Ri…

Social Media · Communities · Social Media Platforms · Social News
Disqus

Disqus

The largest network of discussion communities in the world.Disqus is a free service that enables great online communities. As the web’s most popular discussion system, Disqus is used by millions of websites that cover pretty much any topi…

Digital Media · Social Media · Communities · Social Media Platforms
Votizen

Votizen

Discover which of your friends are voters, and campaign with them to elect candidates.Votizen lets you discover which of your friends are registered voters on your existing social networks, and combine your votes together to campaign and elect candidates across the…

Social Media Platforms · Politics · Law Enforcement · Curated Web
Backplane

Backplane

Enterprise social networkThe future of social networking doesn’t lie in an all-encompassing network, but in niche, private networks with purpose. Our Mission is to create a web of interconnected social ne…

Social Media · Communities · Social Media Platforms · Curated Web
Lithium Technologies

Lithium Technologies

Our software helps companies better connect with their customersLithium's software helps companies reinvent how they connect with their customers. We work with more than 300 of the world's best brands— including AT&T, Best Buy, Indosat, Sephor…

Mobile · Enterprise Software · Social Media Platforms · Big Data Analytics
Kidlandia

Kidlandia

Virtual playground on mobile & online, with branded "rides" to reduce IP & discovery risk.

Entertainment · Social Commerce · Social Media Platforms · Kids
Blockai

Blockai

Netscape of the BlockchainBlockai is a platform to give people who create digital assets a way to claim ownership of them by publishing to the blockchain, turning them into monetizable assets. The first pr…

Publishing · Social Media Platforms · Bitcoin · Blockchains
Tioki

Tioki

Finding better educators fasterTioki is the premiere online professional network exclusively for the education market. Educators create professional profiles that can include video of themselves in the classroo…

Education · Social Media Platforms · College Recruiting · K-12 Education
Storify

Storify

The future of storytellingStorify lets you make stories using social media (tweets, photos or videos) with a drag-and-drop interface. You can easily notify who you quote, helping stories spread virally. St…

Digital Media · Social Media · Publishing · Social Media Platforms
Cloudbot

Cloudbot

Your apps. Simplified.Cloudbot is a mobile and web application that is an efficient solution to having your personal data and relationships scattered around on different services. People rely on differ…

Mobile · Messaging · Social Media Platforms · Development Platforms
Yevvo

Yevvo

Life is live.Stream live video to your friends and family. Invite the people you care about into your world and build moments together. Like life, your moments on Yevvo can only be enjoyed in…

Mobile · Digital Media · Social Media Platforms · Video Streaming
Empire Avenue

Empire Avenue

A global marketplace for anyone to realize the value of their reputation and networkEmpire Avenue Inc. is a global marketplace for individuals to realize the value of their reputation and networks. Our platform (empireavenue.com) combines elements of social media…

Social Media · Social Games · Social Media Platforms · Social Media Advertising
Newsle

Newsle

Tracks friends in the newsWhen your friends make the news, Newsle lets you know. Newsle tracks your friends, colleagues, and anyone else you care about and alerts you when they're mentioned in news article…

News · Social Media Platforms · Email Newsletters · Social News
NewCo

NewCo

Identify, Celebrate, and Connect Engines of Positive Change NewCo Festivals is the first event series to "follow the free" and employ a sharing economy model to traditional business conferences. Our core offering is a mashup of an artist o…

Digital Media · Social Media Platforms · Recruiting · Events
Imgur

Imgur

Online community & destination consisting of the internet's most viral image-based contentSocial community platform. Viral content destination. Image hosting & sharing tools.

Mobile · Digital Media · Social Media Platforms · Advertising Platforms
Capillary Technologies

Capillary Technologies

Intelligent Customer EngagementCapillary is a leading provider of cloud-based software solutions that help businesses to intelligently engage with customers through mobile, social and in-store channels. Capilla…

Analytics · CRM · Mobile Commerce · Social Media Platforms
Quibb

Quibb

Professional network to share industry news and analysisQuibb lets you share what you're reading for work. Use Quibb to share news about your industry, discuss what matters, and see what colleagues are reading. Our mission is to connec…

News · Social Media Platforms · Professional Networking · Content Discovery
Hello

Hello

Real-time meetups, mapping and navigation in a fun, social way.Hello is an always-on, real-time location system. It records snapshots of your day and shares them with friends building the digital diary of your life. We’ve developed new algori…

Mobile · Location Based Services · Big Data · Social Media Platforms
Addvocate

Addvocate

An employee coordination & advocacy platform for the enterpriseAddvocate is building the first social enablement platform for companies to securely suggest content for employees to share on their personal social channels. Addvocate measures t…

SaaS · Enterprise Software · Social Media Platforms · Social Media Marketing
The Peep Project

The Peep Project

A Better Way to Rank & Measure ContentThe Peep Project (stealth name) is an ambitious project to change the way we interact with information. We're a growing team that believes that social data will change the way we…

Algorithms · Social Media Platforms · Content Discovery
GoodAudience

GoodAudience

Get your brand, product or service in front of over 400 million active social media users!Social engagements that drive business results. Reach over 400 million active social media users. Press: http://www.bloomberg.com/video/goodbye-silicon-valley-hello-london-hYjn8QE…

Social Media · Advertising · Social Media Platforms · Social Media Marketing
GemShare

GemShare

The Best Local Services - recommended by friendsGemShare -- the easiest, most trustworthy and convenient way to find the services you need for daily life. No anonymous reviews, just the best recommendations from the people you…

Mobile · Local · Social Media Platforms · iOS
GoPop

GoPop

Easier than Vine. More engaging than Instagram. The future of visual conversation.GoPop has been featured by Apple as a “Best New App,” and showcased in Mashable, The Atlantic and others as an “app not to miss.” GoPop is a fun new way to express yourself. The i…

Digital Media · Social Media Platforms
Sphere

Sphere

360º photographySometimes a moment is irreplaceable. Sometimes a place is inaccessible. Photo and video only capture part of the story, making them poor substitutes for the real thing. We're deve…

Mobile · Photography · Social Media Platforms · Travel
NovoEd

NovoEd

The engaging and effective social learning platformWe are developing cutting-edge technology to solve hard problems in education. NovoEd is a student-centered online learning environment that places collaboration and teamwork at t…

Education · Social Media Platforms · Technical Continuing Education
Hypothes.is

Hypothes.is

The Internet, peer-reviewed. We want to dramatically increase the quality of information in the world, via the feedback loop of crowd-sourced peer review. Hypothes.is will allow community-moderated collaborat…

Digital Media · Internet Infrastructure · Ventures for Good · Social Media Platforms
Chat Sports

Chat Sports

Personalized news and scores, shared with friends.Chat Sports delivers personalized sports news from thousands of sources. It's the only app with live play-by-play for multiple games on a single screen and the best way to share s…

Digital Media · Sports · Social Media Platforms · Content Discovery
trueAnthem

trueAnthem

Predictive Social PublishingtrueAnthem is a real-time analytics and social publishing solution for the media industry. We help media companies and content marketers increase social traffic to their sites thr…

Digital Media · Analytics · Big Data · Social Media Platforms
Hot5

Hot5

Personal trainer for quick mobile workouts.Hot5 is a new fitness app offering short, effective video workouts with personal trainers. Users can stream together multiple five-minute routines (targeting abs & core, butt & le…

Video · Fitness · Social Media Platforms · Photo Sharing
Stringr

Stringr

Crowd Sourced Video Content PlatformMore than one thousand news organizations in the U.S. and 5,000 internationally pay for video and photographs generated by third-party content providers. There is neither an integ…

Digital Media · Social Media Platforms · Broadcasting
Momentum Design Lab

Momentum Design Lab

Betaworks if it also charged for strategy, design and development.Momentum Design Lab is a hybrid product incubator and user experience firm based in San Francisco. Founded in 2002, Momentum has worked on over 400 projects around the globe for e…

Social Media Platforms · Incubators · User Experience Design
Mingly

Mingly

Mingly makes it easy to grow relationships with people across your networks.Mingly makes it easy to grow relationships with people across your networks. Social networks make us more “connected” than ever, but with contacts and conversations scattered acro…

Big Data · Social Media Platforms · Email · Social CRM
Copyin

Copyin

Turn Everyday Email into your Company KnowledgebaseYou probably spend a lot of money backing up your company's data but what about its know-how? When someone leaves your company or goes on holiday do your team mates have the knowl…

Digital Media · Social Media Platforms · Knowledge Management · Group Email
Storie

Storie

Social storytelling platform [AngelPad S11]Storie is a mobile (iOS) blogging platform where users express themselves through stories told through a series of pictures. This unique format is as expressive as a blog post but…

Mobile · Social Media Platforms · Blogging Platforms · Lifestyle
MentorCloud

MentorCloud

eHarmony for mentorship inside Enterprises, Accelerators and Alumni Networks.MentorCloud helps organizations to connect their employees and entrepreneurs with relevant subject-matter experts and mentors anywhere within the organization or externally on our…

Enterprise Software · Social Media Platforms · Professional Services
Convozine

Convozine

Facebook meets magazines.“ZINE” - On Facebook you have a profile, LinkedIn a resume, etc. On Convozine, you have your own magazine (or zine) by signing up. The same simple zine publishing apparatus can be…

Digital Media · Publishing · Communities · Social Media Platforms
Ringz.TV

Ringz.TV

Flipboard for video. With a business model.Ringz' ambition is to build the world's coolest free video sharing service on a powerful business model. Our mission is to enable video owners and distributors to monetize "over-t…

Digital Media · Social Media · Internet TV · Social Media Platforms
PlayerPro

PlayerPro

Crowdsource Your Official Soccer TimelinePlayerPro automatically builds your official soccer timeline from photos, videos and stats taken from each game. We are to soccer players and teams what IMDb is for actors & movie…

Mobile · Sports · Crowdsourcing · Social Media Platforms
DogBff

DogBff

Social commerce for dogs...and their owners. We're applying our years of social games experience to a create a highly engaging mobile social platform for Dog Owners. The way we see it: we've created passionate users out of v…

Mobile · Marketplaces · Social Media Platforms · Pets
Mattr

Mattr

Smart Social Segmentation: (21st Century Nielsen)Mattr uses a brand's social data for real time market research. Brands get: - meaningful segmentation, like Forrester's "Technographics" - sentiment and interests by segment - whe…

Digital Media · Social Media · Social Media Platforms · Social Media Marketing
Louder

Louder

Amplify links beyond your network.The Louder platform surfaces important conversations that deserve more attention, and gives users a way to drive those conversations to places they've never been. Every week, the…

Advertising · Mobile Advertising · Ventures for Good · Social Media Platforms
GroupMD

GroupMD

Secure place where care teams share information, collaborate and coordinate patient careGroupMD is a patient-centered collaboration platform.

SaaS · Health Care · Health Care Information Technology · Social Media Platforms
Endorphin

Endorphin

Making sense of social dataEndorphin is a scoring platform that is created to make sense of data from social networks. Leveraging social data and personal digital footprints combined with proprietary scorin…

Social Media Platforms · Social Search · Big Data Analytics
Tapvite

Tapvite

simple, personal invitesRallyChat is the simplest invite system ever.

Mobile · Social Media Platforms · Chat · Event Planners
SPOTS

SPOTS

Your local sports community.SPOTS is the fun, easy way to play sports you love with people nearby. 1. SPOTS shows you people nearby who are looking to play your sports e.g. tennis, basketball, soccer, rock c…

Mobile · Sports · Local · Social Media Platforms
Picovico

Picovico

Converts photos into videosPicovico is a video creation tool (online and mobile) that makes it easy and fun for everyone to create and share excellent slideshows. Of course, it’s a bonus that you can add yo…

Video · Photography · Social Media Platforms · Photo Sharing
Wishdates

Wishdates

It's your personal dating organizer.Wishdates is your personal dating organizer. At WishDates we let users to invite close friends, form a dating group and meet similar group of opposite sex: our algorithms helps se…

Location Based Services · Social Media Platforms · Online Dating · Mobile Social
ZapChain

ZapChain

Incentivized DiscussionsZapChain is a platform for high quality discussions.

Communities · Social Media Platforms · Bitcoin
Mojalink

Mojalink

We connect business, government and nonprofits around causes. Angel.co for philanthropy.Mojalink is a global network of businesses, governments and nonprofits looking to increase their philanthropic impact. Businesses can discover, connect and partner with nonprofits…

Mobile · Ventures for Good · Social Media Platforms · Professional Networking