Here is a list of the largest insurance companies in Europe according to their assets. Allianz Group, a German-based company, is the largest insurer in Europe with assets of about $1.1 trillion. It is also the largest insurance company in Europe by market capitalization. As of July 26, 2019, it had a market value of approximately US$100 billion. Headquartered in Paris, French giant AXA is the second largest insurance company in Europe in terms of total assets. The top 10 European insurers include 3 UK companies and two insurers from France.

Rank Company Country Total Assets, US$b (December 31, 2018)
1 Allianz Group Germany 1.060.82
2 AXA S.A. France 1.035.07
3 Prudential plc UK 631.324
4 Legal & General Group plc UK 618.988
5 Assicurazioni Generali S.p.A. Italy 585.417
6 Aviva plc UK 531.355
7 CNP Assurances SA France 450.621
8 Aegon Netherlands 449.513
9 Zurich Insurance Group AG Switzerland 374.589
10 Munich Re Germany 309.018
11 Phoenix Group Holdings UK 282.105
12 NN Group N.V. * Netherlands 255.337
13 Swiss Life Holding AG Switzerland 216.530
14 Swiss Re AG Switzerland 200.751
15 Talanx AG Germany 186.439
16 Chubb Ltd Switzerland 167.771
17 Covea Mutual Insurance ^ France 124.711
18 Groupama France 110.758
19 Ageas N.V. Belgium 98.569
20 Achmea Holding N.V. Netherlands 93.581
21 Unipol Gruppo S.p.A. Italy 87.614
22 PZU Group Poland 86.838
23 Baloise Holding AG Switzerland 81.653
24 KLP Group ** Norway 77.390
25 Hannover Re Germany 73.785
26 Mapfre S.A. Spain 70.239
27 Storebrand ASA Norway 66.146
28 Helvetia Holding AG Switzerland 59.230
29 Vienna Insurance Group Austria 58.334
30 Sampo Oyj Finland 56.126
31 SCOR SE France 48.316
32 Cattolica Assicurazioni SC Italy 37.880
33 Nuernberger Beteiligungs AG Germany 35.656
34 Uniqa Insurance Group AG Austria 32.259
35 NFU Mutual ***^ UK 24.556
36 RSA Insurance Group plc UK 22.870
37 Liverpool Victoria (LV=) UK 22.747
38 AIG Europe Limited (AEL) ^ UK 20.270
39 Gjensidige Forsikring ASA Norway 17.852
40 Allied World **** Switzerland 13.600
41 Topdanmark A/S Denmark 12.649
42 Direct Line Insurance Group plc UK 10.377
43 Chesnara plc UK 10.196
44 Tryg A/S Denmark 8.457
45 Vaudoise Assurances Holding S.A. Switzerland 8.145

* NN Group merged with its competitor Delta Lloyd NV, a Dutch insurer, in 2017.
** Kommunal Landspensjonskasse (KLP) is the largest life insurance company in Norway.
*** NFU Mutual, UK's leading rural insurer, is a trading name for National Farmers Union Mutual Insurance Society.
**** Allied World Assurance Company Holdings, GmbH operates as a subsidiary of Fairfax Financial since July 2017.
^ Data as of 31.12.2017