Attached files

file filename
EX-4.13 - NINTH SUPPLEMENTAL INDENTURE DATED JANUARY 12, 2017 - MARSH & MCLENNAN COMPANIES, INC.mmc12312016ex_413.htm
EX-21.1 - LIST OF SUBSIDIARIES OF MMC - MARSH & MCLENNAN COMPANIES, INC.mmc12312016ex_211.htm
EX-32.1 - SECTION 1350 CERTIFICATIONS - MARSH & MCLENNAN COMPANIES, INC.mmc12312016ex_321.htm
EX-31.2 - RULE 13A-14(A)/15D-14(A) CERTIFICATION OF CHIEF FINANCIAL OFFICER - MARSH & MCLENNAN COMPANIES, INC.mmc12312016ex_312.htm
EX-31.1 - RULE 13A-14(A)/15D-14(A) CERTIFICATION OF CHIEF EXECUTIVE OFFICER - MARSH & MCLENNAN COMPANIES, INC.mmc12312016ex_311.htm
EX-12.1 - STATEMENT RE COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES - MARSH & MCLENNAN COMPANIES, INC.mmc12312016ex_121.htm
EX-10.38 - SECOND AMENDMENT TO MMC BENEFIT EQUALIZATION AND SUPPLEMENTAL RETIRMENT PLANS - MARSH & MCLENNAN COMPANIES, INC.mmc12312016ex_1038.htm
EX-10.37 - FIRST AMENDMENT TO MMC BENEFIT EQUALIZATION AND SUPPLEMENTAL RETIREMENT PLANS - MARSH & MCLENNAN COMPANIES, INC.mmc12312016ex_1037.htm
EX-10.34 - FIRST AMENDMENT TO THE MMC SUPPLEMENTAL SAVINGS & INVESTMENT PLAN - MARSH & MCLENNAN COMPANIES, INC.mmc12312016ex_1034.htm
10-K - FORM 10-K - MARSH & MCLENNAN COMPANIES, INC.mmc1231201610k.htm
Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-8 (Registration File Nos. 2-58660, 33-48807, 33-59603, 333-209684, 333-41828, 333-69778, 333-146400, 333-176084, and 333-176085), Registration Statements on Form S-3 (Registration File Nos. 333-67543, 333-161797, 333-183214 and 333-206217), and Registration Statement on Form S-4 (Registration File No. 333-163405) of our reports dated February 24, 2017, relating to the consolidated financial statements of Marsh & McLennan Companies, Inc. and subsidiaries (the “Company”), and the effectiveness of the Company’s internal control over financial reporting, appearing in this Annual Report on Form 10-K of Marsh & McLennan Companies, Inc. for the year ended December 31, 2016.

/s/ Deloitte & Touche LLP
New York, New York
February 24, 2017