8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Current Report

Pursuant To Section 13 or 15 (d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) January 29, 2008

ACE LIMITED

(Exact name of registrant as specified in its charter)

Cayman Island	1-11778	98-0091805
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

ACE Global Headquarters

17 Woodbourne Avenue

Hamilton HM 08 Bermuda

(Address of principal executive offices)

Registrant’s telephone number, including area code: (441) 295-5200

Not applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02 Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.

(b) Brian Duperreault, former chairman and chief executive officer, resigned from the ACE Limited Board of Directors on January 29, 2008 as a result of his appointment as chief executive officer of Marsh & McLennan Companies, Inc. Mr. Duperreault’s resignation was not the result of any disagreement with ACE’s Board of Directors.

A copy of the press release dated January 30, 2008 announcing Mr. Duperreault’s resignation is attached as Exhibit 99.1.

(e) In connection with Mr. Duperreault’s resignation, the Compensation Committee approved a cash severance payment to Mr. Duperreault in the amount of $4,950,000 as compensation for his past service to ACE Limited.

Item 9.01 Financial Statements and Exhibits.

(d)     Exhibits

Exhibit Number	Description
99.1	Press Release dated January 30, 2008

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

ACE LIMITED
By:	/s/ ROBERT F. CUSUMANO
	Robert F. Cusumano General Counsel

DATE: February 1, 2008

EX-99.1

Exhibit 99.1

	ACE Limited ACE Global Headquarters             17 Woodbourne Avenue Hamilton HM 08 Bermuda	PO Box HM 1015 Hamilton HM DX Bermuda 441 295-5200 main 441 292-8675 fax www.acelimited.com

FOR IMMEDIATE RELEASE

Investor Contact:	Helen M. Wilson (441) 299-9283 helen.wilson@ace.bm
Media Contact:	Robert T. Grieves (212) 827-4444 robert.grieves@ace-ina.com

BRIAN DUPERREAULT STEPS DOWN FROM ACE LIMITED BOARD;

COMPANY THANKS AND WISHES HIM WELL

AS NEW CEO OF MARSH & MCLENNAN

HAMILTON, Bermuda – January 30, 2008 – ACE Limited (NYSE: ACE) announced today that Brian Duperreault, former chairman and chief executive officer, has stepped down from the ACE Limited Board of Directors as a result of his appointment as chief executive officer of Marsh & McLennan Companies, Inc.

“We wish Brian all the best on his new assignment leading the Marsh & McLennan organization,” said Evan G. Greenberg, Chairman & Chief Executive Officer of ACE Limited. “Marsh & McLennan is a great global franchise and an important presence in our industry. We have every confidence that Brian will provide the same exceptional leadership to Marsh & McLennan that he gave to ACE for so many years and for which we will always be grateful. We look forward to working with Brian and all of his new colleagues.”

The ACE Group of Companies is a global leader in insurance and reinsurance serving a diverse group of clients. Headed by ACE Limited, a component of the Standard & Poor’s 500 stock index, the ACE Group of Companies conducts its business on a worldwide basis with operating subsidiaries in more than 50 countries. Additional information can be found at: www.acelimited.com.

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