MailChimp is the best way to design, send, and share email newsletters. Email is serious business, which is why we never smile.

WordPress is an Open Source project, which means there are hundreds of people all over the world working on it. (More than most commercial platforms.) It also means you are free to use it for anything from your cat’s home page to a Fortune 500 web site without paying anyone a license fee and a number of other important freedoms.

Adobe (NASDAQ: ADBE) deals in digital media, digital marketing, and printing and publishing software with over 14,000 employees and $4.4 billion in revenue.

HubSpot is an inbound marketing software company that helps businesses transform their marketing from outbound to inbound lead generation and "get found" by more potential customers in the natural course of the way they shop and learn.

DocuSign pioneered the development of e-signature technology, and today offers one of the top global e-signature solutions. It’s just part of their broader cloud-based System of Agreement Platform, which allows companies of all sizes and across all industries to quickly modernize and digitize the entire agreement process—all the way from preparing agreements to signing, enacting and managing them—from almost anywhere in the world, on practically any device.

LogMeIn is a leading provider of on-demand, remote-connectivity and support solutions to small businesses, IT service providers and consumers. Businesses and IT service providers use LogMeIn's solutions to deliver remote end-user support and to access and manage computers and other Internet-enabled devices more effectively and efficiently. Consumers and mobile workers use our solutions to access computer resources remotely, thereby facilitating their mobility and increasing their productivity. Our solutions, which are deployed on-demand and accessible through a Web browser, are secure, scalable and easy for our customers to try, purchase and use. Since our inception, our users have connected over 60 million computers and other Internet-enabled devices to a LogMeIn service. LogMeIn's software-as-a-service suite of solutions includes capabilities for on-demand customer support of PCs, smartphones and other devices, systems administration, remote access, remote control, file-sharing, virtual private networking, data back-up and online meeting.

Prezi is a cloud-based presentation software that opens up a new world between whiteboards and slides.

MuleSoft provides the most widely used integration platform for connecting SaaS and enterprise applications in the cloud and on-premise. With the rise of cloud and mobile, enterprises face a choice: get overwhelmed by the resulting explosion of end points or seize the opportunity to gain competitive advantage.

LinkedIn connects the world's professionals to make them more productive and successful. With more than 400 million members worldwide, including executives from every Fortune 500 company, LinkedIn is the world's largest professional network on the Internet.

HootSuite Media, Inc. provides Web-based social media management solutions for businesses and organizations to collaboratively execute campaigns across various social networks. Its HootSuite unique social media dashboard enables users to launch marketing campaigns, identify and grow audiences, distribute targeted messages, manage various social profiles, schedule messages and tweets, track brand mentions, and analyze social media traffic. The HootSuite's features include social network management, team/business collaboration, custom/social analytics, message management, and security for social assets. HootSuite Media, Inc. was founded in 2008 and is based in Vancouver, Canada.

From Intuits flagship products Quicken, QuickBooks & TurboTax to Mint.com, our end-to-end solutions stand as testament to our commitment to revolutionize the way millions of people manage small businesses, payroll, accounting, and personal finance.

GitHub Inc. provides code hosting services. It allows users to share codes with friends, co-workers, classmates, and strangers; offers control system for the collaborative development of software; allows users to fork, send pull requests, and manage various public and private repositories; and offers collaborator management, wikis, downloads, code review, and graphs. The company allows individuals and team members to discuss about codes; and track and assign issues to other teammates. GitHub Inc. was founded in 2008 and is based in San Francisco, California.

Zapier (YC S12) solves integrations for web services. Zapier provides a simple web interface to sync data between web applications so non-technical users don't have to write a single line of code.