
Omnicom Group
FIRST QUARTER 2008 RESULTS
Investor Presentation
April 22, 2008

1
The following materials have been prepared for use in the April 22, 2008 conference call on Omnicom’s results of operations
for the quarter ended March 31, 2008. The call will be archived on the Internet at
http://www.omnicomgroup.com/financialwebcasts.
Forward-Looking Statements
Certain of the statements in this document constitute forward-looking statements within the meaning of the Private
Securities Litigation Act of 1995. These statements relate to future events or future financial performance and involve
known and unknown risks and other factors that may cause our actual or our industry’s results, levels of activity or
achievement to be materially different from those expressed or implied by any forward-looking statements. These risks
and uncertainties include, but are not limited to, our future financial condition and results of operations, changes in
general economic conditions, competitive factors, changes in client communication requirements, the hiring and retention
of human resources and our international operations, which are subject to the risks of currency fluctuations and
exchange controls. In some cases, forward-looking statements can be identified by terminology such as “may,” “will,”
“could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “potential” or “continue” or
the negative of those terms or other comparable terminology. These statements are present expectations. Actual events
or results may differ materially. We undertake no obligation to update or revise any forward-looking statement, except as
required by law.
Other Information
All dollar amounts are in millions except for EPS. The following financial information contained in this document has not
been audited, although some of it has been derived from Omnicom’s historical financial statements, including its audited
financial statements. In addition, industry, operational and other non-financial data contained in this document have been
derived from sources we believe to be reliable, but we have not independently verified such information, and we do not,
nor does any other person, assume responsibility for the accuracy or completeness of that information.
The inclusion of information in this presentation does not mean that such information is material or that disclosure of such
information is required.

2
2008 vs. 2007 P&L Summary
2008
2007
%
Revenue
3,195.4
$
2,840.6
$
12.5%
Operating Income
350.8
315.5
11.2%
% Margin
11.0%
11.1%
Net Interest Expense
11.0
18.3
Profit Before Tax
339.8
297.2
14.3%
% Margin
10.6%
10.5%
Taxes
115.2
100.5
% Tax Rate
33.9%
33.8%
Profit After Tax
224.6
196.7
14.2%
Equity in Affiliates
8.1
5.2
Minority Interest
(24.0)
(18.9)
Net Income
208.7
$
183.0
$
14.0%
First Quarter

3
2008 vs. 2007 Earnings Per Share(a)
Earnings per Share:
Basic
Diluted
Growth Rate, Diluted
Weighted Average Shares (millions):
Basic
Diluted
Dividend Declared Per Share
$ 0.65
0.65
18.2
318.6
320.9
$0.15
2007
2008
First Quarter
$ 0.55
0.55
331.1
335.5
$0.125
%
(a)
In connection with our two-for-one stock split distributed on June 25, 2007, which was effected in the form of a 100% stock
dividend, prior period per share amounts and weighted average share amounts have been adjusted in accordance with SFAS No.
128, “Earnings per Share.”

4
2008 Total Revenue Growth
(a)
To calculate the FX impact, we first convert the current period’s local currency revenue using the average exchange rates from the equivalent prior
period to arrive at constant currency revenue. The FX impact equals the difference between the current period revenue in U.S. dollars and the
current period revenue in constant currency.
(b)
Acquisition revenue is the aggregate of the applicable prior period revenue of the acquired businesses. Netted against this number is the revenue
of any business included in the prior period reported revenue that was disposed of subsequent to the prior period.
(c)
Organic revenue is calculated by subtracting both the acquisition revenue and the FX impact from total revenue growth.
$
%
Prior Period Revenue
2,840.6
$
Foreign Exchange (FX) Impact (a)
145.6
5.1%
Acquisition Revenue (b)
28.0
1.0%
Organic Revenue (c)
181.2
6.4%
Current Period Revenue
3,195.4
$
12.5%
First Quarter

5
2008 Revenue By Discipline
(a) “Growth” is the year-over-year growth from the prior period.
Advertising
43.5%
PR
9.9%
CRM
36.5%
Specialty
10.1%
First
Quarter
2008
$ Mix
% Growth
(a)
Advertising
1,391.3
13.5%
####
CRM
1,167.5
14.8%
####
PR
315.0
7.1%
9.9%
Specialty
321.6
5.8%
####

6
First
Quarter
2008
2008 Revenue By Geography
United
States
52.0%
UK
10.7%
Euro
Markets
21.9%
Other
15.4%
(a) “Growth” is the year-over-year growth from the prior period.
$ Mix
$ Growth
(a)
United States
1,661.2
$
117.3
$
Organic
103.2
Acquisition
14.1
International
1,534.2
$
237.5
$
Organic
78.0
Acquisition
13.9
FX
145.6
$ Mix
% Growth
(a)
United States
1,661.2
$
7.6%
Euro Currency Markets
701.0
21.9%
United Kingdom
343.0
5.2%
Other
490.2
23.9%

7
Cash Flow – GAAP Presentation (condensed)
2008
2007
Net Income
208.7
$
183.0
$
Stock-Based Compensation Expense
15.2
18.4
Depreciation and Amortization
57.2
47.8
Other Non-Cash Items to Reconcile to Net Cash Provided by Operations
24.7
20.6
Other Changes in Working Capital
(809.3)
(606.5)
Excess Tax Benefit on Stock Compensation
(4.1)
(9.6)
Net Cash Used by Operations
(507.6)
(346.3)
Capital Expenditures
(42.2)
(34.9)
Acquisitions
(89.0)
(19.4)
Other Investing Activities, net
(3.7)
152.5
Net Cash (Used) Provided by Investing Activities
(134.9)
98.2
Dividends
(49.1)
(42.6)
Stock Repurchases
(316.0)
(451.8)
Share Transactions Under Employee Stock Plans
33.2
48.2
Excess Tax Benefit on Stock Compensation
4.1
9.6
Other Financing Activities
(12.7)
(15.2)
Net Cash Used by Financing Activities
(340.5)
(451.8)
Effect of exchange rate changes on cash and cash equivalents
3.7
(11.3)
Net Decrease in Cash and Cash Equivalents
(979.3)
$
(711.2)
$
3 Months Ended March 31,

8
Current Credit Picture
(a) “Operating Income (EBIT)” and “Net Interest Expense” calculations shown are the latest twelve month (“LTM”) figures for the periods specified.
Although our bank agreements reference EBITDA, we have used EBIT for this presentation because EBITDA is a non-GAAP measure.
2008
2007
Operating Income (EBIT)
(a)
$
1,695
$
1,515
Net Interest Expense
(a)
$
66.7
$
94.8
EBIT / Net Interest
25.4
x
16.0
x
Net Debt / EBIT
1.3
x
1.3
x
Debt:
Bank Loans (Due Less Than 1 Year)
$
20
$
12
CP Issued Under $2.5B - Revolver Due 6/23/11
-
-
Convertible Notes Due 2/7/31
847
847
Convertible Notes Due 7/31/32
727
727
Convertible Notes Due 7/1/38
467
467
10 Year Notes Due 4/15/16
996
996
Other Debt
21
19
Total Debt
$
3,078
$
3,068
Cash and Short Term Investments
863
1,065
Net Debt
$
2,215
$
2,003
3 Months ended March 31,

9
Current Liquidity Picture
(a)
Credit facility expires June 23, 2011.
(b)
Represents uncommitted facilities in the U.S., U.K. and Canada. These amounts are excluded from our available
liquidity for purposes of this presentation.
Total Amount
Of Facility
Outstanding
Available
Committed Facilities
Revolver
(a)
2,500
$
-
$
2,500
$
Other Committed Credit Facilities
20
20
-
Total Committed Facilities
2,520
20
2,500
Uncommitted Facilities
(b)
510
-
-
(b)
Total Credit Facilities
3,030
$
20
$
2,500
$
Cash and Short Term Investments
863
Total Liquidity Available
3,363
$
As of March 31, 2008

10
Acquisitions Summary

11
Acquisition Related Expenditures
Note: See appendix for subsidiary acquisition profiles.
Includes acquisitions of a majority interest in new agencies resulting in their consolidation.
Includes acquisitions of additional equity interests in existing affiliate agencies resulting in majority ownership and consolidation.
Includes acquisitions of less than a majority interest in agencies in which Omnicom did not have a prior equity interest and the acquisition
of additional interests in existing affiliated agencies that did not result in majority ownership.
Includes the acquisition of additional equity interests in already consolidated subsidiary agencies.
Includes additional consideration paid for acquisitions completed in prior periods.
(a)
(b)
(c)
(d)
(e)
New Subsidiary Acquisitions
(a)
40
$
Affiliates to Subsidiaries
(b)
-
Affiliates
(c)
9
Existing Subsidiaries
(d)
7
Earn-outs
(e)
27
Total Acquisition Expenditures
83
$
First Quarter 2008

12
Potential Earn-out Obligations
The following is a calculation of future earn-out obligations as of
March 31, 2008, assuming that the underlying acquired agencies
continue to perform at their current levels: (a)
(a)
The ultimate payments will vary as they are dependent on future events and changes in FX rates.
2008
2009
2010
2011
Thereafter
Total
171
$
97
$
81
$
28
$
2
$
379
$

13
Potential Obligations
(a) The ultimate payments will vary as they are dependent on future events and changes in FX rates.
In conjunction with certain transactions Omnicom has agreed to acquire
(at the sellers’ option) additional equity interests. If these rights are
exercised, there would likely be an increase in our net income as a
result of our increased ownership and the reduction of minority interest
expense. The following is a calculation of these potential future
obligations (as of March 31, 2008), assuming these underlying acquired
agencies continue to perform at their current levels: (a)
Currently
Exercisable
Not Currently
Exercisable
Total
Subsidiary Agencies
183
$
87
$
270
$
Affiliated Agencies
54
6
60
Total
237
$
93
$
330
$

14
First Quarter Acquisitions
A Vista Events
A Vista Events specializes in event design and production to create
extraordinary environments for individual, corporate and
institutional client events.
A Vista Events is a member of the Radiate Group and is located in
Beltsville, Maryland.

15
First Quarter Acquisitions
The Kern Organization
The Kern Organization (“TKO”) is a full service direct marketing
agency providing customer acquisition and lead generation
services to Fortune 1000 companies using a wide array of offline
and online media.
The company is located in Woodland Hills, California and will
become part of the Rapp Collins network.

16
First Quarter Acquisitions
Lew’ Lara
Lew’Lara is a full-service advertising agency. Established in 1992, it
has grown into one of the most successful and highly regarded
agencies in the market, with strong relationships with leading
national and international advertisers and has consistently been
ranked among the top agencies in Brazil.
Lew’Lara is located in Brazil, with offices in Sao Paulo and Rio de
Janeiro. Rebranded as Lew’Lara\TBWA, the agency will become
TBWA’s flagship agency in Brazil.

17
First Quarter Acquisitions
Shift
Shift is an interactive agency formed in 1995 specializing in web-
based communications and multi-media offerings. The agency
has a record of developing international award-winning web
solutions.
Shift is based in New Zealand, and has offices in Auckland and
Wellington. The agency will work closely with the TBWA
network.