Philadelphia Insurance Companies' (PHLY) mission is to be the company everyone wants to do business with and where everyone wants to work. Our 2,000 employees in 50 offices across the country work together to deliver unsurpassed customer service to our agents and policyholders.
Our business delivers strong and stable financial results so that we can be there for our customers. PHLY continues to maintain an A.M. Best "A++" rating (since 2011) and ended 2016 with a combined ratio of 91.5%. We had a solid year in 2016, with gross written premiums rising by 6.9% to $3.3 billion. Our net earned premium grew by 5.8% to $2.9 billion. PHLY's Net Promoter Score (NPS) - an index ranging from -100 to 100 that measures the willingness of customers to recommend a company's products or services to others - has improved by nearly 20 points (50%) since 2013, reaching a NPS score of 69. Our customers also gave us a 95% overall satisfaction rating.
PHLY focused on building relationships with our Select Agents in 2016 that resulted in a 50% increase in new business. We made it easier to do business with us by launching a new Special Events portal, which gives agents and policyholders the ability to generate quotes, pay online, and get a policy in minutes. We also expanded our products by offering Fine Arts coverage, a Cyber Security Liability endorsement, and introduced Storage Tank Pollution coverage.
Another area of focus for PHLY continues to be investing in the workforce of our industry. In 2016, we welcomed 46 students from across the country into our summer associates program and hired another 34 as full-time trainees. We also enhanced the training and development programs for our Marketing, Underwriting, and Risk Management departments to better prepare and retain our employees. Feedback from our employees contributed to PHLY being named one of the Best Places to Work in Insurance for the seventh consecutive year. On top of four other top employer awards, we were also named to the Healthiest 100 Workplaces in America list. We continue to focus on being a place where everyone wants to work; that gives us the talent to be a company everyone wants to do business with.