Carbon Black has filed for an initial public offering (IPO), revealing that revenue at the endpoint security software company reached $162 million in 2017, up from $116.2 million in 2016 and $70.6 million in 2015. That's a 51 percent compound annual growth rate (CAGR).That revenue growth involves a "high-leverage channel model." Indeed, 94 percent of Carbon Black's new or add-on business for the three months ended December 31, 2017, involved channel partners. Those partners include MSSPs and security-focused VARs, the company notes.Key relationships also span more than 100 incident response firms, including Kroll and Ernst & Young, along with strategic relationships with IBM and VMware, the company adds. Dig a little deeper into the IPO filing, and the company mentions key relationships with Optiv Security Inc. (as a VAR-MSSP); CDW Corp. (software VAR); Arrow Electronics (global distributor); SecureWorks (MSSP).Augment or replace legacy antivirus software; Prevent malware and fileless attacks that do not use malware; Protect against ransomware; Hunt down threats; Respond to and remediate security incidents; Lock down critical systems and applications; Protect fixed-function devices; Secure workloads and applications in virtualized and cloud environments; Comply with regulatory mandates; and Enhance other security products through our unfiltered endpoint data.