As an open-source platform, GitLab has surprised experts by growing and thriving despite of its customer base pay for its services. Git is a version control system used by software developers and GitLab serves as a git repository, giving users manageability, code reviews, issue tracking, wikis, and more. Last fall, the company secured in Series A funding from venture capital firm Khosla Ventures. Over the past three years, LeadGenius has grown from a Y Combinator-backed start up to an essential lead generation and outbound solution for some of the biggest names in the game. LeadGenius uses a network of human researchers, machine learning, and their own lead database to help B2B sales and marketing teams identify and connect with their most profitable potential customers. Landing the backing of NASA is no small feat, but Slack has accomplished just that, serving as the messaging platform for the space agency's Jet Propulsion Laboratory. The biggest benefit to Slack is that it's free, which gives it an advantage over other messaging tools. Software and applications are now fundamental to any business. The ability to rapidly deliver high-quality applications provides businesses with competitive advantage. Plutora is the leading global provider of enterprise DevOps SaaS solutions, designed to accelerate the end-to-end software delivery journey through transparency and control. The company has won the for its 4,500% growth rate over the last three years, and was also recognized as a by Gartner. Fortune 500 companies like Barclays, Verizon, Telstra, and Ebay rely on Plutora's SaaS solution for enterprise release management and test environment management. Data analytics are on every business owner's mind today and ZoomCharts equips businesses with the tools they need to present that data. ZoomCharts allows users to plug in data and create visually-appealing charts that easily explain concepts. As of late December 2015, the company had already raised , with plans to bring in even more in 2016. Email is an essential part of business. That doesn't change even in a tightly-regulated industry like healthcare that deal with sensitive client information. A featured startup at the , Paubox pairs web security with native processes to improve the overall healthcare practice and patient experience. Imagine your doctor's office actually wanting to communicate via email. Paubox's proprietary solution makes it easy with seamlessly encrypted, Health Insurance Portability and Accountability Act emails--no decoding necessary. For businesses interested in incorporating Bitcoin into their applications or websites, Block. With in funding, the company is poised to grow in 2016 as more businesses discover its service. While ZoomCharts helps you display data, Socialight Analytics helps you collect it. Since 2014, Socialight a robust client base that includes classic rock bands and major retailers. The API helps brands monitor activity on Facebook, Twitter, and Instagram with in-depth analytics, ad hoc analysis, content optimization tools, and custom reports. To truly connect with customers, businesses must learn as much as possible about them. Blitzen provides interactive surveys that collect information from customers in real time. With just an email, Blitzen can gather a wide range of information on a customer, as well. Blitzen gained worldwide attention on Product Hunt in February 2015. Unprepared for the sudden number of signups, the company had to ramp up quickly and hasn't stopped growing since. The hotel industry is being rocked by AirBnB and high commissions. The way to save it? Voyat V-CRM, which lets guests sign up with their own profiles linked to social networks , ties into hotel reservation systems and brings with it a wealth of personalization data. Insight into a guest's past stays and social shares, hotels can offer suitable perks and rewards. Hotels are enjoying a 2.