CBRE (CBRE) 8-K CBRE Group, Inc. Investor Presentation September 2012

Exhibit 99.1

CBRE Group, Inc. Investor Presentation September 2012

Forward Looking Statements This presentation contains statements that are forward looking within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding our future growth momentum, operations, financial performance, business outlook and our ability to integrate the ING REIM businesses. These statements should be considered as estimates only and actual results may ultimately differ from these estimates. Except to the extent required by applicable securities laws, we undertake no obligation to update or publicly revise any of the forward-looking statements that you may hear today. Please refer to our second quarter earnings report filed on Form 8-K, our current annual report filed on Form 10-K and our current quarterly report filed on Form 10-Q, in particular any discussion of risk factors or forward-looking statements, which are filed with the SEC and available at the SEC’s website (www.sec.gov), for a full discussion of the risks and other factors that may impact any estimates that you may hear today. We may make certain statements during the course of this presentation, which include references to “non-GAAP financial measures,” as defined by SEC regulations. As required by these regulations, we have provided reconciliations of these measures to what we believe are the most directly comparable GAAP measures, which are attached hereto within the appendix.

The Global Market Leader Includes affiliate offices. As of June 30, 2012. Based on 2011 revenues versus Jones Lang LaSalle. Scale and Diversity 1.6x nearest competitor3 Thousands of clients; approximately 80% of the Fortune 100 $159.0 billion of transaction activity in 2011 Broad Capabilities #1 leasing #1 investment sales #1 outsourcing #1 appraisal and valuation #1 commercial mortgage brokerage #1 commercial real estate investment manager $6.1 billion of development projects in process/pipeline2 Leading Global Brand 100+ years 400+ offices in over 60 countries1 #1 in virtually every major global business center Recognized Leadership S&P 500 Only commercial real estate services company in the S&P 500 FORTUNE Only commercial real estate services company in the Fortune 500 The Lipsey Company #1 brand for 11 consecutive years IAOP #1 real estate outsourcing firm Newsweek #1 real estate company in “green” rankings Wall Street Journal best brand reputation in subscriber survey

Our Objectives Provide a complete suite of market leading services to property owners and occupiers through a fully integrated global business platform and a managed account strategy Our Strategy Establish and maintain the leading position in every major world city. Establish and maintain the leading position in each service we provide. Maintain the most admired, highest quality brand. Recruit, hire and retain the finest people in our industry. Foster and maintain a culture of integrity, excellence and continuous improvement. Lead the industry in revenue and profit growth and retain the industry’s highest operating margins. Our Vision Be the preeminent, vertically integrated, globally capable commercial real estate services firm

Diversified revenue spread across a broad base of clients Diverse Client Base 2011 Revenue by Client Type1 Includes activity from ING Clarion Real Estate Securities (CRES), ING REIM Asia and ING REIM Europe beginning July 1, October 3 and October 31, 2011, respectively.

Geographic Diversification #1 commercial real estate services firm in each of the major regions of the world LTM 6/30/12 revenue of $6.3 billion includes $4.4 million of revenue related to discontinued operations. Includes activity from ING CRES, ING REIM Asia and ING REIM Europe beginning July 1, October 3 and October 31, 2011, respectively. LTM 6/30/12 Revenue1,2

Revenue Diversification Contractual revenue includes: Property & Facilities Management (14% in 2006 and 34% in LTM 6/30/12), Appraisal & Valuation (7% in 2006 and 6% in LTM 6/30/12), Investment Management (6% in both 2006 and LTM 6/30/12), Development Services (1% in both 2006 and LTM 6/30/12) and Other (1% in 2006 and 2% in LTM 6/30/12). Non-contractual revenue includes: Sales (31% in 2006 and 16% in LTM 6/30/12), Leasing (37% in 2006 and 31% in LTM 6/30/12) and Commercial Mortgage Brokerage (3% in 2006 and 4% in LTM 6/30/12). Reflects Trammell Crow Company’s revenue contributions beginning on December 20, 2006. LTM 6/30/12 revenue of $6.3 billion includes $4.4 million of revenue related to discontinued operations. Includes activity from ING CRES, ING REIM Asia and ING REIM Europe beginning July 1, October 3 and October 31, 2011, respectively. Contractual revenues1 represented 49% of LTM 6/30/12 revenue, up from 29% in 2006 LTM 6/30/12 Revenue3,4 2006 Revenue2

Revenue Breakdown YTD 2nd Quarter 2012 Includes revenue from discontinued operations of $1.4 million and $2.4 million for the three and six months ended June 30, 2011, respectively. 36% 28% 15% 8% 6% 4% 1% 2% Three months ended June 30, Six months ended June 30, ($ in millions) 2012 20111 % Change 2012 20111 % Change Property & Facilities Management 548.1 498.7 10 1,074.1 977.0 10 Leasing 474.9 471.4 1 837.4 824.9 2 Sales 263.9 2280 . 16 437.7 3859 . 13 Investment Management 112.0 47.4 136 230.8 86.8 166 Appraisal & Valuation 95.2 89.7 6 174.9 165.0 6 Commercial Mortgage Brokerage 68.2 50.1 36 125.1 89.1 40 Development Services 15.5 15.2 2 28.5 31.5 -10 Other 23.3 23.1 1 42.6 49.5 -14 Total 1,601.1 1,423.6 12 2,951.1 2,609.7 13

Property and Facilities Management Revenue1 ($ in Millions) CAGR = 23% 2 Outsourcing Services Revenue includes property management, facilities management and project management fees. Does not include transaction revenue associated with outsourcing activities. Includes Trammell Crow Company’s revenue for the period from December 20, 2006 through December 31, 2006. Represents combined data for CBRE and Trammell Crow Company; does not include joint ventures and affiliates. Global Square Footage Managed3 (SF in Billions) CAGR = 13%

#1 Provider of Every Outsourced Real Estate Service Consulting Property/Facilities Management Project Management Transaction Management Global execution of transactions with a portfolio-wide focus Optimize portfolio Lease administration services Multiple-transaction focus Full service outsourcing Program management One-off integrated transaction management/ project management Moves, adds, changes Sourcing and procurement Operations and maintenance Energy services Health, safety and security Environmental sustainability Client accounting Organizational design Portfolio optimization Workplace strategy Land use analysis and strategy Fiscal and economic impact analysis Clients Total potential available market is estimated to be $50 to $60 billion.

Leasing Global Leasing Revenue ($ in Millions) Includes Trammell Crow Company’s revenue for the period from December 20, 2006 through December 31, 2006. As of December 31, 2011. Does not include affiliate offices. 1 Approximately 3,7002 leasing professionals worldwide Tailored service delivery by property type and industry/market specialization $66.5 billion global lease transactions in 2011 Leasing activity in Q2 2012 grew modestly in the Americas and Asia Pacific despite global economic challenges. EMEA continued to experience weakness. Key Facts

Office Leasing Market Outlook forecast Office TW Rent Index; % change versus a year ago Office Vacancy rate; % U.S. Office Rent Forecast and Vacancy TW Rent Index Vacancy

Sales Global Sales Revenue ($ in Millions) Includes Trammell Crow Company’s revenue for the period from December 20, 2006 through December 31, 2006. As of December 31, 2011. Does not include affiliate offices. 1 Key Facts Approximately 1,8002 investment sales specialists worldwide Specialization across all major property types $92.5 billion global sales in 2011 Investment sales growth continued in Q2 2012, led by strong performance in the Americas. EMEA and Asia Pacific also had positive growth despite the macro economy. Percent of YTD Q2 2012 Total Revenue

Global Transaction Volume Source: CBRE Research (EMEA and Asia Pacific), RCA (Americas); Data excludes Development sites. Updated for Q2 2012. Regional Volume, $ in Billions Global Volume, $ in Billions

Global Investment Management: CBRE Global Investors GIM Revenue1 ($ in Millions) CAGR =18% Assets Under Management4 ($ in Billions) CAGR =27% Highlights3 ING REIM integration proceeding on schedule YTD Q2 2012 pro-forma normalized EBITDA margin of 31% $91.2 billion in assets under management; YTD 2012 impacted by a large disposal and exchange rate movement $215.1 million of co-investments Includes revenues from discontinued operations. Includes activity from ING CRES, ING REIM Asia and ING REIM Europe, beginning July 1, October 3 and October 31, 2011, respectively. As of June 30, 2012. As of December 31 for each year presented except for Q2 2012, which is as of June 30, 2012. 2 Carried Interest Acquisition, Disposition & Incentive Investment Management Percent of YTD Q2 2012 Total Revenue

Global Investment Programs Description Assets Under Management1,2 ($ in billions) Typical Fee Structure Separate Accounts $23.8 Management fees Transaction fees Incentive fees Sponsored Funds $33.8 Management fees Transaction fees LP profits Carried interest Unlisted Securities $12.2 Management fees Incentive fees Listed Securities $21.4 Management fees Incentive fees As of June 30, 2012. Assets under management (AUM) generally refers to fair market value of real estate-related assets with respect to which CBRE Global Investors provides, on a global basis, oversight, investment management services and other advice, and which generally consist of properties and real estate-related loans; securities portfolios; and investments in operating companies, joint ventures and in private real estate funds under its fund of funds program. This AUM is intended principally to reflect the extent of CBRE Global Investors' presence in the global real estate market, and its calculation of AUM may differ from the calculations of other asset managers.

Development Services: Trammell Crow Company Revenue1 ($ in Millions) Includes Trammell Crow Company’s operations prior to the acquisition of Trammell Crow Company on December 20, 2006. Also includes revenue from discontinued operations. As of December 31 for each year presented except for Q2 2012, which is as of June 30, 2012. As of June 30, 2012. In Process figures include Long-Term Operating Assets (LTOA) of $1.6 billion for 2Q 12, $1.5 billion for 4Q 11, $1.6 billion for 4Q 10, $1.4 billion for 4Q 09 and $0.4 billion for both 4Q 08 and 4Q 07. LTOA are projects that have achieved a stabilized level of occupancy or have been held 18-24 months following shell completion or acquisition. $6.1 billion in process/pipeline $89.2 million of co-investments $15.0 million in recourse debt to CBRE and repayment guarantees Projects In Process/Pipeline2 ($ in Billions) Key Facts3 4 Percent of YTD Q2 2012 Total Revenue In Process Pipeline

($ in Millions) No reimbursements are included for the period 1992 through 1996, as amounts were immaterial. Reimbursements for 1997 through 2001 have been estimated. For 2002 and forward, reimbursements are included. Includes Insignia activity for the period July 23, 2003 through December 31, 2003. Includes Trammell Crow Company activity for the period December 20, 2006 through December 31, 2006. Includes revenue from discontinued operations, which totaled $2.1 million for the year ended December 31, 2007, $1.3 million for the year ended December 31, 2008, $3.9 million for the year ended December 31, 2010 , $6.7 million for the year ended December 31, 2011 and $4.4 million for the twelve months ended June 30, 2012. Normalized EBITDA excludes merger-related and other non-recurring costs, integration and other costs related to acquisitions, cost containment expenses, one-time IPO-related compensation expense, gains/losses on trading securities acquired in the Trammell Crow Company acquisition and the write-down of impaired assets. Includes EBITDA related to discontinued operations of $6.5 million for the year ended December 31, 2007, $16.9 million for the year ended December 31, 2008, $16.4 million for the year ended December 31, 2010, $14.1 million for the year ended December 31, 2011 and $12.2 million for the twelve months ended June 30, 2012. Includes activity from ING CRES, ING REIM Asia and ING REIM Europe beginning July 1, October 3 and October 31, 2011, respectively. 1. 2. 3. 4. 5. 6. 7. ($ in Millions) 1992 – 2011 CAGR = 16% Average Annual Organic Growth of 9% Revenue 1 Normalized EBITDA and Margin 5 1992 – 2011 CAGR = 21% Historical Performance 6 6 6 4 4 4 3 3 4,7 6,7 2 2 4,7 6,7 360 392 429 469 583 759 1,187 1,403 1,518 1,362 1,362 1,810 2,647 3,194 4,032 6,036 5,130 4,166 5,119 5,912 6,254 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 LTM Q2 2012 Organic Revenue Revenue From Acquisitions 20 26 34 42 62 90 127 117 151 115 131 183 300 461 653 970 601 454 681 803 881 5.6% 6.6% 7.9% 8.9% 10.6% 11.9% 10.7% 8.4% 9.9% 8.4% 9.6% 10.1% 11.3% 14.4% 16.2% 16.1% 11.7% 10.9% 13.3% 13.6% 14.1% 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 LTM Q2 2012 Normalized EBITDA Normalized EBITDA Margin

Mandatory Amortization and Maturity Schedule $ in millions $700.0 million revolver facility matures in May 2015. As of June 30, 2012, the outstanding revolver balance was $52.8 million. As of June 30, 2012 1 34 70 75 350 420 458 378 370 350 0.0 250.0 500.0 2012 2013 2014 2015 2016 2017 2018 2019 2020 Term Loan A Term Loan A - 1 Term Loan B Term Loan C Term Loan D Sr. Subordinated Notes Sr. Unsecured Notes Revolver 1

Capitalization Excludes $146.2 million and $208.1 million of cash in consolidated funds and other entities not available for Company use at June 30, 2012 and December 31, 2011, respectively. Net of original issue discount of $10.3 million and $11.0 million at June 30, 2012 and December 31, 2011, respectively. Represents notes payable on real estate in Development Services that are recourse to the Company. Excludes non-recourse notes payable on real estate of $375.9 million and $359.3 million at June 30, 2012 and December 31, 2011, respectively. Excludes $417.2 million and $713.4 million of aggregate non-recourse warehouse facilities at June 30, 2012 and December 31, 2011, respectively. ($ in millions) 6/30/2012 12/31/2011 Variance Cash 1 585.0 885.1 (300.1) Revolving credit facility 52.8 44.8 8.0 Senior secured term loan A 288.8 306.2 (17.4) Senior secured term loan A-1 277.3 285.1 (7.8) Senior secured term loan B 294.7 296.3 (1.6) Senior secured term loan C 396.0 398.0 (2.0) Senior secured term loan D 396.0 398.0 (2.0) Senior subordinated notes 2 439.7 439.0 0.7 Senior unsecured notes 350.0 350.0 - Notes payable on real estate 3 13.6 13.6 - Other debt 4 4.8 0.1 4.7 Total debt 2,513.7 2,531.1 (17.4) Stockholders' equity 1,254.9 1,151.5 103.4 Total capitalization 3,768.6 3,682.6 86.0 Total net debt 1,928.7 1,646.0 282.7 As of

Business Outlook The cyclical recovery in commercial real estate continues despite a slow, uneven economic recovery Outsourcing is expected to deliver strong, consistent growth Total leasing growth rates remain modest Global investment sales will continue to be highly dependent on regional market conditions Investment management will continue to benefit from ING REIM contributions We expect solid improvement in normalized EBITDA margins to continue in 2012 We are maintaining our full-year 2012 normalized EPS guidance range of $1.20 to $1.25 per diluted share

Appendix

Reconciliation of Normalized EBITDA to EBITDA to Net Income (Loss) Notes: Includes EBITDA related to discontinued operations of $12.2 million for the twelve months ended June 30, 2012, $14.1 million for the year ended December 31, 2011, $16.4 million for the year ended December 31, 2010, $16.9 million for the year ended December 31, 2008 and $6.5 million for the year ended December 31, 2007. Includes interest income related to discontinued operations of $0.1 million for the year ended December 31, 2008 and $0.01 million for the year ended December 31, 2007. Includes depreciation and amortization related to discontinued operations of $0.7 million for the twelve months ended June 30, 2012, $1.2 million for the year ended December 31, 2011, $0.6 million for the year ended December 31, 2010, $0.1 million for the year ended December 31, 2008 and $0.4 million for the year ended December 31, 2007. Includes interest expense related to discontinued operations of $1.9 million for the twelve months ended June 30, 2012, $3.2 million for the year ended December 31, 2011, $1.6 million for the year ended December 31, 2010, $0.6 million for the year ended December 31, 2008 and $1.8 million for the year ended December 31, 2007. Includes provision for income taxes related to discontinued operations of $4.0 million for the twelve months ended June 30, 2012 and the year ended December 31, 2011, $5.4 million for the year ended December 31, 2010, $6.0 million for the year ended December 31, 2008 and $1.6 million for the year ended December 31, 2007. Includes revenue related to discontinued operations of $4.4 million for the twelve months ended June 30, 2012, $6.7 million for the year ended December 31, 2011, $3.9 million for the year ended December 31, 2010, $1.3 million for the year ended December 31, 2008 and $2.1 million for the year ended December 31, 2007. ($ in millions) LTM Q2 2012 2011 2010 2009 2008 2007 Normalized EBITDA 1 881.0 $ 802.6 $ 681.3 $ 453.9 $ 601.2 $ 970.1 $ Less: Integration and other costs related to acquisitions 74.0 68.8 7.2 5.7 16.4 45.2 Cost containment expenses 31.1 31.1 15.3 43.6 27.4 - Write-down of impaired assets 9.4 9.4 11.3 32.5 100.4 - Merger-related charges - - - - - 56.9 Loss on trading securities acquired in the Trammell Crow Company acquisition - - - - - 33.7 EBITDA 1 766.5 693.3 647.5 372.1 457.0 834.3 Add: Interest income 2 8.7 9.4 8.4 6.1 17.9 29.0 Less: Depreciation and amortization 3 152.5 116.9 109.0 99.5 102.9 113.7 Interest expense 4 172.6 153.5 192.7 189.1 167.8 164.8 Write-off of financing costs - - 18.1 29.3 - - Goodwill and other non-amortizable intangible asset impairments - - - - 1,159.4 - Provision for income taxes 5 203.6 193.1 135.8 27.0 56.9 194.3 Net income (loss) attributable to CBRE Group, Inc. 246.5 $ 239.2 $ 200.3 $ 33.3 $ (1,012.1) $ 390.5 $ Revenue 6 6,253.5 $ 5,912.1 $ 5,119.2 $ 4,165.8 $ 5,130.1 $ 6,036.3 $ Normalized EBITDA Margin 14.1% 13.6% 13.3% 10.9% 11.7% 16.1% Year Ended December 31,

 Reconciliation of Global Investment Management Pro-forma Normalized EBITDA Six Months Ended June 30, ($ in millions) 2012 EBITDA 55.3 Add Back: Integration and other costs related to acquisitions 19.1 Normalized EBITDA 74.4 Net accrual of incentive compensation expense related to carried interest revenue not yet recognized 0.7 Pro-forma Normalized EBITDA 75.1 Pro-forma Normalized EBITDA Margin 31%