Exhibit 99.1

FOR IMMEDIATE RELEASE:

STREAM GLOBAL SERVICES ANNOUNCES

FINANCIAL RESULTS FOR SECOND QUARTER, ENDED JUNE 30, 2010

Revenues of $183.9 million and Gross Profit of 40%

BOSTON, MA – August 4, 2010 – Stream Global Services, Inc., (NYSE AMEX: SGS), a premium business process outsource (BPO) service provider specializing in customer relationship management and business process outsourcing services for many of the leading Fortune 1000 companies, today announced consolidated financial results for the three and six months ended June 30, 2010.

Included in the financial results are Stream’s previously reported purchase of eTelecare Global Solutions, Inc. and related financings, all of which were completed on October 1, 2009.

GAAP Consolidated Results

On a GAAP basis, revenue for the three and six months ended June 30, 2010 was $183.9 million and $380.5 million, respectively, compared to $125.7 million and $261.3 million for the same periods in 2009.

GAAP net loss was $21.5 million and $32.0 million for the three and six months ended June 30, 2010, respectively, compared to a GAAP net loss of $4.7 million and $4.5 million for the same periods in 2009.

Pro Forma Combined Consolidated Results

On a pro forma combined consolidated basis, as if the acquisition of eTelecare Global Solutions, Inc., had been completed as of January 1, 2009, the Company posted revenue for the three and six months ended June 30, 2010 of $183.9 million and $380.5 million, respectively, compared to $195.3 million and $401.5 million in the same periods in 2009.

Stream’s gross profit as a percentage of revenue decreased to 40% and 41%, respectively, in the three and six months ended June 30, 2010, compared to 43% and 44% in same periods in 2009.

For the three and six months ended June 30, 2010, adjusted pro forma earnings before interest taxes depreciation and amortization (“EBITDA”) was $10.7 million and $27.7 million, respectively, compared to $15.5 million and $39.2 million for the same periods in 2009.

In 2009, Stream won eleven new logos and significant programs that are expected to generate annualized revenues of approximately $190 million once fully ramped. So far in 2010, Stream has been awarded nine new logos and significant programs which are expected to generate annualized revenues of approximately $125 million once fully ramped.

Scott Murray, Chairman and Chief Executive Officer at Stream said, “During the first half of 2010, we continued to achieve high levels of customer satisfaction across our client base, with many of our global clients awarding us ‘Number One Service Provider’ status. We have also secured a significant amount of new business this year, much of which is in the process of ramping.” Murray went on to say, “Along with the investment required for these program ramps, many of our telecommunications and technology clients have delivered lower than forecasted call volumes resulting in lower revenue and gross margins. This trend is being

experienced across the entire BPO industry. In response to these challenges, we continue to invest in the technology and processes that will improve our financial performance and operating metrics – such as employee retention, attendance and utilization – and manage our spending carefully while continuing to sustain high levels of client satisfaction.”

Stream will hold a conference call for investors on at 9:00 AM EDT. Investors can participate by calling 1-800-289-0518 and referencing passcode #7462028.

Contact Information:

Sally Comollo

Director of Marketing Communications

sally.comollo@stream.com

781-304-1847

About Stream Global Services:

Stream Global Services is a premium business process outsource (BPO) service provider specializing in customer relationship management services including sales, customer care and technical support for Fortune 1000 companies. Stream is a trusted partner to some of the world’s leading technology, computing, telecommunications, retail, entertainment/media, and financial services companies. Our service programs are delivered through a set of standardized best practices and sophisticated technologies by a highly skilled multilingual workforce of over 30,000 employees capable of supporting over 35 languages across 50 locations in 22 countries. Stream continues to expand its global presence and service offerings to increase revenue, improve operational efficiencies and drive brand loyalty for its clients. To learn more about the company and its complete service offering, please visit www.stream.com.

Safe Harbor.

This press release contains forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including forward-looking statements regarding our business expectations and objectives. These statements are neither promises nor guarantees, but involve risks and uncertainties that could cause actual results to differ materially from those set forth in the forward-looking statements, including, without limitation, risks relating to our ability to maintain and win additional client business, continue to maintain our operating performance and margin expansion, continue to have sufficient capital to grow and maintain our business, retain our management team and effectively operate a global franchise across multiple jurisdictions plus other risks detailed in our filings with the SEC, including those discussed in the Company’s Annual report on Form 10-K for the year ended December 31, 2009 and quarterly report on Form 10-Q for the quarter ended March 31, 2010.

Stream does not intend, and disclaims any obligation, to update any forward-looking information contained in this release, even if its estimates change.

The required reconciliations and other disclosures for all non-GAAP measures used by the Company are set forth in a schedule attached to this press release and in the Current Report on Form 8-K furnished to the SEC on the date hereof.

Non-GAAP Financial Information

This release contains non-GAAP financial measures. These non-GAAP financial measures, which are used as measures of Stream’s performance or liquidity, should be considered in addition to, not as a substitute for, measures of Stream’s financial performance or liquidity prepared in accordance with GAAP. Non-GAAP financial measures may be defined differently from time to time and may be defined differently than similar terms used by other companies, and accordingly, care should be exercised in understanding how Stream defines non-GAAP financial measures in this release.

Stream’s management uses the non-GAAP financial measures in the accompanying schedules to gain an understanding of Stream’s comparative operating performance (when comparing such results with previous periods) and future prospects and excludes certain items from its internal financial statements for purposes of its internal budgets and financial goals. These non-GAAP financial measures are used by Stream’s management in their financial and operating decision-making because management believes they reflect Stream’s ongoing business in a manner that allows meaningful period-to-period comparisons. Stream’s management believes that these non-GAAP financial measures provide useful information to investors and others in (a) understanding and evaluating Stream’s current operating performance and future prospects in the same manner as management does, if they so choose, and (b) in comparing in a consistent manner Stream’s current financial results with its past financial results.

All of the foregoing non-GAAP financial measures have limitations. Specifically, the non-GAAP financial measures that exclude certain items do not include all items of income and expense that affect Stream’s operations. Further, these non-GAAP financial measures are not prepared in accordance with GAAP, may not be comparable to non-GAAP financial measures used by other companies and do not reflect any benefit that such items may confer on Stream. Management compensates for these limitations by also considering Stream’s financial results in accordance with GAAP.

STREAM GLOBAL SERVICES, INC.

CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS

(in thousands, except per share data)

(unaudited)

STREAM GLOBAL SERVICES, INC.

CONSOLIDATED CONDENSED BALANCE SHEET

(Unaudited)

(in thousands)

STREAM GLOBAL SERVICES, INC.

PRO FORMA COMBINED CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS

(unaudited)

(in thousands)

Note: The results above for 2010 represent Stream and eTelecare as a combined company with no historical purchase adjustments and the results for 2009 represent pro forma as if the transaction with Stream and Global BPO occurred on January 1, 2009 combined with eTelecare results with no historical purchase adjustments.

STREAM GLOBAL SERVICES, INC.

RECONCILIATION OF GAAP TO NON-GAAP PRO FORMA INFORMATION

(unaudited)

(in thousands)