Top 20 UK Marine, Aviation and Transport Insurers - Provided by A.M. Best

- Insurance Age staff
- 01 Oct 2008
- Indicative reading time: 1 minute

2007 rank 2006 rank AMB# Company Name ...

2007 rank	2006 rank	AMB#	Company Name	Rating	Group Name	GWP (£000s)	Underwriting result* (£000s)	Combined ratio (%)	Loss ratio (%)
1	1	87709	AIG UK	A u [1]	American International Group	643,319	13,079	55.7	37.2
2	2	86485	Ace European Group**	A+	Ace	303,476	19,136	85.3	60.3
3	4	84806	Aspen Insurance UK	A	Aspen Insurance Holdings	196,786	7,296	89.1	39.5
4	5	86257	RSA	A–	RSA Insurance Group	193,749	27,276	n/a	n/a
5	8	87600	SR International Business	A+	Swiss Reinsurance Company	159,931	13,958	n/a	n/a
6	3	86160	Great Lakes Reins (UK)	A+	Munich Reinsurance Company	149,173	463	n/a	n/a
7	7	30286	Britannia Steam Ship Insurance Association***	NR–5	n/a	118,432	–20,101	122.0	109.5
8	10	77102	Arch Insurance Company (Europe)	A	Arch Capital Group	106,443	5,221	n/a	n/a
9	11	84975	TT Club Mutual Insurance***	A–	Through Transport Mutual Insurance Association	100,148	–988	102.7	31.0
10	9	87959	North of England Protecting and Indemnity Association***	NR–5	North of England Protecting and Indemnity Association	99,206	–8,127	132.2	76.3
11	33	78390	Lancashire Insurance Company (UK)	A–	Lancashire Holdings	96,410	–1,205	74.6	44.0
12	6	86486	International Insurance Company of Hannover	A–	HDI	96,220	1,126	n/a	n/a
13	13	87425	Liberty Mutual Ins Europe	NR–5	Liberty Mutual Holding	75,889	–10,292	n/a	n/a
14	14	86497	Sunderland Marine Mutual Insurance Company***	A–	Sunderland Marine Mutual Insurance	67,884	–1,853	105.1	68.1
15	22	77622	Catlin Insurance Company (UK)	A	Catlin Group-Consolidated	66,768	–7,138	n/a	n/a
16	12	87960	Berkshire Hathaway International Insurance	NR–5	Berkshire Hathaway	64,585	–4,063	122.9	91.0
17	16	85366	85366 Tokio Marine Europe**	NR–5	Tokio Marine Holdings	59,736	–3,439	108.0	67.1
18	15	89489	Navigators Insurance Company (UK Branch)	A [2]	The Navigators Group	56,829	6,081	n/a	n/a
19	18	32640	London Steam-Ship Owners’ Mutual Insurance Association***	NR–5	n/a	52,287	–1,969	116.7	72.0
20	20	86301	CNA Insurance**	NR–5	Loews Corporation	52,096	4,222	91.4	55.3

* Underwriting result excludes investment income
** Figures are for business accounted for on an accident year basis, accounting for over 99% of these companies’ marine, aviation and transport business by GWP.
*** Figures for these marine mutual firms are based on the R&A of financial year 2007 for total business lines.
[1] The listed A.M. Best rating applies to New Hampshire Insurance Company, USA, (AMB# 02363).
[2] The listed A.M. Best rating applies to Navigators Insurance Company, USA, (AMB# 01825).Note: Some ratio figures are (N/A) not available because all or some (being greater than 1%) of these companies’ marine, aviation and transport business is accounted foron an underwriting year basis, for which earned premiums is not disclosed on the FSA return. Figures in above table are based on FSA returns of financial year 2007 (exceptwhere indicated by ***) for total marine, aviation and transport insurance business lines (reporting categories 330, 340 and 350).Ratings as of September 17, 2008.

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