Below is a list of the top 50 insurance companies in the world ranked by market capitalization. Berkshire Hathaway, an American multinational conglomerate, ranks first in the list. The company's principal operations are insurance and reinsurance business. Its main insurance subsidiaries include GEICO (Government Employees Insurance Company), National Indemnity, and General Re. GEICO is the second largest private passenger auto insurer in the United States. General Re and Berkshire Hathaway Reinsurance Group are the largest reinsurer companies in the world. China Life Insurance is the second largest insurer in terms of market value. It has the largest client base in the world with over 200 million individual and group policies in force. In 2015, the company reported premium income of 364 billion yuan ($56 billion).

Rank Company Country Market cap, $b, March 15, 2016
1 Berkshire Hathaway US 346.501
2 China Life Insurance China 91.561
3 Ping An Insurance China 87.285
4 Allianz Germany 74.263
5 AIA Group Hong Kong 66.748
6 American International Group US 60.944
7 AXA France 58.940
8 Chubb ltd Switzerland 55.170
9 Prudential PLC UK 48.095
10 Metlife US 48.023
11 Zurich Insurance Group Switzerland 34.705
12 Munich Re Germany 34.198
13 China Pacific Insurance China 33.841
14 Swiss RE Switzerland 33.660
15 Travelers Companies US 33.604
16 Prudential Financial US 32.299
17 Manulife Financial Canada 27.489
18 Aviva UK 27.451
19 Great West Lifeco Canada 26.513
20 Tokio Marine Holdings Japan 26.438
21 PICC Property & Casualty China 25.956
22 Aflac US 25.851
23 Allstate Corp US 24.938
24 Assicurazioni Generali Italy 23.796
25 Legal & General Group UK 19.453
26 Progressive Corporation US 19.446
27 Samsung Life Insurance South Korea 19.387
28 Sun Life Financial Canada 18.988
29 Hartford Financial US 17.708
30 MS&AD Insurance Group Japan 17.226
31 Power Financial Canada 17.203
32 People's Insurance Company of China China 16.948
33 Ameriprise Financial US 15.224
34 New China Life Insurance Company China 15.099
35 Cathay Financial Holding Taiwan 14.931
36 Dai-ichi Life Insurance Japan 14.815
37 Hannover Re Germany 13.798
38 Fairfax Financial Holdings Canada 13.343
39 Old Mutual UK 13.292
40 Loews Corporation US 12.750
41 Markel Corporation US 12.369
42 Samsung Fire & Marine Insurance South Korea 12.087
43 Aegon N.V. Netherlands 12.046
44 Sompo Japan Nipponkoa Holdings Japan 11.602
45 Principal Financial Group US 11.475
46 Suncorp Group Australia 11.078
47 QBE Insurance Group Australia 10.902
48 Cincinnati Financial Corp US 10.700
49 CNP Assurances France 10.681
50 NN Group Netherlands 10.594
51 XL Group plc Ireland 10.473
52 Standard Life UK 10.131
53 Lincoln National Corp US 9.624
54 Insurance Australia Group Australia 9.847
55 Ageas Belgium 9.025