Apr 21, 2016 | By Shawn Selby, PropertyCasualty360.com

Direct written premiums for the commercial auto insurance market totaled $31.2 billion for 2015.
                  Direct written premiums for the commercial auto insurance market totaled $31.2 billion for 2015.

The National Association of Insurance Commissioners has ranked the top 25 private commercial auto insurance companies and groups by market share of direct premiums written for 2015.

Direct written premiums totaled $31.2 billion for the top 25, an increase from last year’s $29.2 billion. The top 10 carriers accounted for 42% of the total direct premiums written. The top five carriers pulled the most weight in the commercial auto insurance industry, accounting for 28% of the direct premiums written.

The companies in the top five spots remained the same as they were in 2014, though not in the same order.

AmTrust NGH broke into the top 10, coming in at No. 9, up from No. 14 in 2014. It replaced Tokio Marine Holdings in the top 10. Tokio Marine was No. 10 in 2014, but fell to No. 11 in the 2015 list.

PC360 previously covered the top 10 personal auto carriers for 2015, top 10 P&C carriers for 2015, and the top 10 Homeowners’ insurance carriers for 2015.

Continue reading to find out which companies NAIC ranked as the top 10 for the commercial auto insurance market:

Auto-Owners logo

No. 10: Auto-Owners

2014 Ranking: 9.

Direct Premiums Written, 2015: $662.8 million.

Direct Premiums Written, 2014: $610 million.

2015 Market Share: 2.12%.

2014 Market Share: 2.09%.

2015 Cumulative Market Share: 43.48%.

AmTrust NGH

No. 9: AmTrust NGH

2014 Ranking: 14.

Direct Premiums Written, 2015: $697.2 million.

Direct Premiums Written, 2014: $527 million.

2015 Market Share: 2.23%.

2014 Market Share: 1.8%.

2015 Cumulative Market Share: 41.35%.

Old Republic logo

No. 8: Old Republic

2014 Ranking: 7.

Direct Premiums Written, 2015: $1.07 billion.

Direct Premiums Written, 2014: $977 million.

2015 Market Share: 3.43%.

2014 Market Share: 3.34%.

2015 Cumulative Market Share: 39.12%.

Berkshire Hathaway

No. 7: Berkshire Hathaway

2014 Ranking: 8.

Direct Premiums Written, 2015: $1.07 billion.

Direct Premiums Written, 2014: $863 million.

2015 Market Share: 3.44%.

2014 Market Share: 2.95%.

2015 Cumulative Market Share: 35.69%.

AIG logo

No. 6: American International Group

2014 Ranking: 6.

Direct Premiums Written, 2015: $1.13 billion.

Direct Premiums Written, 2014: $1.12 billion.

2015 Market Share: 3.61%.

2014 Market Share: 3,83%.

2015 Cumulative Market Share: 32.25%.

Zurich logo

No. 5: Zurich Insurance

2014 Ranking: 5.

Direct Premiums Written, 2015: $1.49 billion.

Direct Premiums Written, 2014: $1.31 billion.

2015 Market Share: 4.77%.

2014 Market Share: 4.49%.

2015 Cumulative Market Share: 23.87%.

No. 4: Liberty Mutual

2014 Ranking: 4.

Direct Premiums Written, 2015: $1.51 billion.

Direct Premiums Written, 2014: $1.53 billion.

2015 Market Share: 4.85%.

2014 Market Share: 5.22%.

2015 Cumulative Market Share: 23.87%.

Nationwide logo

No. 3: Nationwide

2014 Ranking: 3.

Direct Premiums Written, 2015: $1.72 billion.

Direct Premiums Written, 2014: $1.67 billion.

2015 Market Share: 5.52%.

2014 Market Share: 5.7%.

2015 Cumulative Market Share: 19.03%.

Travelers logo

No. 2: Travelers

2014 Ranking: 1.

Direct Premiums Written, 2015: $2.02 billion.

Direct Premiums Written, 2014: $1.97 billion.

2015 Market Share: 6.5%.

2014 Market Share: 6.74%.

2015 Cumulative Market Share: 13.5%.

Progressive logo

No. 1: Progressive

2014 Ranking: 2.

Direct Premiums Written, 2015: $2.19 billion.

Direct Premiums Written, 2014: $1.91 billion.

2015 Market Share: 7%.

2014 Market Share: 6.54%.

2015 Cumulative Market Share: 7%.

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