--- title: All-Star Client Makes Top of Inc. 5000 List description: All-Star Client Makes Top of Inc. 5000 List image: https://info.hc1.com/hubfs/Imported_Blog_Media/Castle-Medical-Final-Logo-White-Background-Revised-TM-2.png --- [![logo_fullcolor.png](https://info.hc1.com/hs-fs/hubfs/Brand%20Elements/logo_fullcolor.png?width=300&name=logo_fullcolor.png "logo_fullcolor.png")](https://www.hc1.com) - [Platform](https://www.hc1.com/platform/) - [HITRUST Certification](https://www.hc1.com/platform/hitrust/) - [Customers](https://www.hc1.com/who-we-serve) - [Diagnostic Laboratories](https://www.hc1.com/who-we-serve/laboratories/) - [Health Systems and IDNs](https://www.hc1.com/who-we-serve/health-systems/) - [Lab Stewardship Committees](https://www.hc1.com/lab-stewardship-committee/) - [hc1 Insights for Pharma](https://www.hc1.com/customers/pharma-insights/) - [Solutions](https://www.hc1.com/solutions/) - [Laboratories](https://www.hc1.com/solutions/laboratories/) - [Post-Acute Care](https://www.hc1.com/solutions/post-acute-care/) - [Health Systems](https://www.hc1.com/solutions/health-systems/) - [Resources](https://www.hc1.com/resources/) - [Resources](https://www.hc1.com/resources/) - [Events](https://www.hc1.com/events/) - [Blog](http://blog.hc1.com/) - [Company](https://www.hc1.com/company/our-story/) - [Our Story](https://www.hc1.com/company/our-story/) - [Leadership](https://www.hc1.com/company/leadership/) - [Careers](https://www.hc1.com/company/careers/) - [Partners](https://www.hc1.com/company/partners/) - [News and Press](https://www.hc1.com/company/news-and-press/) - [Contact](https://www.hc1.com/contact-us/) [hc1.com](https://info.hc1.com/topic/hc1-com) [Healthcare Relationship Management](https://info.hc1.com/topic/healthcare-relationship-management) # [All-Star Client Makes Top of Inc. 5000 List](https://info.hc1.com/all-star-client-makes-top-of-inc-5000-list) By [Brad Beutler](https://info.hc1.com/author/bbeutler)   |  12, August 2015 [READ NOW](https://info.hc1.com/all-star-client-makes-top-of-inc-5000-list) [Read Post](https://info.hc1.com/all-star-client-makes-top-of-inc-5000-list#article) [Brad Beutler](https://info.hc1.com/author/bbeutler)  Tags: [hc1.com](https://info.hc1.com/topic/hc1-com) [Healthcare Relationship Management](https://info.hc1.com/topic/healthcare-relationship-management) hc1.com is built on strong partner relationships with our all-star clients, and we love seeing one of them atop the [Inc. 5000 list](http://www.inc.com/inc5000?cid=so07007). Congratulations to Castle Medical for making **#4** on the list of the fastest growing private companies in America! [Castle Medical](http://www.inc.com/profile/castle-medical), a full-service toxicology lab based in Smyrna, GA, performs workplace drug testing as well as testing for hormones and vitamin levels, and DNA testing that can help determine proper dosages. According to their Inc. profile, Castle has grown 25,485% in the last 3 years, bringing in almost **$83.7 million** in revenue in 2014 alone. ![Castle Medical - Final Logo - White Background - Revised-TM](https://info.hc1.com/hs-fs/hubfs/Imported_Blog_Media/Castle-Medical-Final-Logo-White-Background-Revised-TM-2.png?width=184&height=255&name=Castle-Medical-Final-Logo-White-Background-Revised-TM-2.png) Castle Medical activated hc1 to help build their sales team, win new deals, and create a winning client experience. You can learn how hc1 helped Castle increase revenue and grow their market share by watching this quick webinar recording **[here](https://vimeo.com/127181210)**. Congratulations to [Castle Medical](http://castlemedical.com)! 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