Exhibit 99.1

Press Release

PRGX Global, Inc. Announces Fourth Quarter

and Full Year 2014 Financial Results

ATLANTA, March 3, 2015 — PRGX Global, Inc. (Nasdaq:PRGX), the world’s leading provider of accounts payable recovery audit services and the pioneer in Profit Discovery™, today announced its unaudited financial results for the fourth quarter and year ended December 31, 2014.

“The PRGX global team delivered another quarter of sequential Adjusted EBITDA growth despite continued revenue challenges in our core recovery audit business,” said Ron Stewart, president and chief executive officer. “Our Q4 Adjusted EBITDA results were in line with expectations as we made solid progress on rationalizing our overall expense structure.”

“In our Recovery Audit business, our claims production volume is increasing and we have a healthy backlog of new client spend to audit going into 2015; our challenge is to effectively manage rate and other pressures to maximize revenue generation,” said Mr. Stewart.

“As we continued to transition the Company throughout 2014 in an effort to realign and focus on future growth opportunities, I am particularly encouraged by the traction we are gaining with clients in Contract Compliance and Adjacent Services. We have added new global clients and continue to make progress in our emerging growth offerings which leverage our best-in-class data technology platform and experience for the benefit of our clients,” concluded Mr. Stewart.

Consolidated Results for the Three Months Ended December 31, 2014

Fourth quarter 2014 Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization (Adjusted EBITDA) was $6.4 million, or 15.4% of revenue, compared to the fourth quarter 2013 Adjusted EBITDA of $6.9 million, or 14.9% of revenue. This represents a 3% year-over-year improvement in quarterly Adjusted EBITDA as a percentage of revenue. Compared to the third quarter 2014 Adjusted EBITDA of $5.6 million, or 13.1% of revenue, the fourth quarter 2014 Adjusted EBITDA as a percentage of revenue increased 17.4%. Schedule 3 attached to this press release provides a reconciliation of net income (loss) to each of EBIT (Earnings Before Interest and Taxes), EBITDA and Adjusted EBITDA.

Consolidated revenue for the fourth quarter of 2014 decreased 11.2% to $41.3 million compared to $46.5 million for the same period last year. Adjusted for changes in foreign exchange rates, consolidated fourth quarter 2014 revenue decreased 8.4% compared to the same period in 2013.

Total cost of revenue for the fourth quarter of 2014 was $28.5 million, or 69.0% of revenue, compared to $30.2 million, or 65.0% of revenue, in the same period last year. This increase in cost of revenue as a percentage of

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revenue was primarily driven by lower revenue in the fourth quarter of 2014 coupled with continued investment in new growth platforms. On a constant dollar basis, adjusted for changes in foreign exchange rates, total cost of revenue for the fourth quarter of 2014 improved approximately $0.7 million, compared to the third quarter of 2014. SG&A expenses for the fourth quarter of 2014 decreased 33.6% to $9.3 million, compared to $14.0 million in the same period last year. Depreciation and amortization expenses were $2.4 million in the fourth quarter of 2014, compared to $3.3 million in the prior year fourth quarter. There were no impairment charges during the fourth quarter of 2014, whereas there were $4.2 million in impairment charges for the fourth quarter of 2013 due to the impairment of certain long-lived assets.

Net loss for the fourth quarter of 2014 was $(2.1) million, or $(0.08) per basic and diluted share, compared to a net loss of $(6.4) million, or $(0.22) per basic and diluted share, for the same period in 2013.

Net cash provided by operating activities for the fourth quarter of 2014 was $2.9 million, compared to $8.1 million in the fourth quarter of the prior year.

Consolidated Results for the Year Ended December 31, 2014

Consolidated revenue for the year ended December 31, 2014 decreased 15.9% to $164.2 million, compared to $195.2 million in the prior year. Excluding the decrease in Healthcare Claims Recovery Audit Services (HCRA) revenue, which represented approximately $14.3 million of the year-over-year change, the decrease was 9.4%. On a constant dollar basis, adjusted for changes in foreign exchange rates, consolidated revenue for the year ended December 31, 2014 decreased 15.1% compared to the year ended December 31, 2013 and excluding the HCRA revenue decreased 8.6%.

Total cost of revenue for the year ended December 31, 2014 was $116.0 million, a reduction of $10.1 million compared to $126.1 million in 2013. As a percentage of revenue, cost of revenue was 70.6% for the year ended December 31, 2014, compared to 64.6% in the prior year. The largest contributors to this increase in the cost of revenue as a percentage of revenue were the decline in revenue in the Recovery Audit Services segments and reduced auditing under the Medicare RAC program. SG&A expenses for the year ended December 31, 2014 were $40.8 million, compared to $49.2 million in the same period in the prior year, an improvement of $8.4 million. Depreciation and amortization expenses were $9.7 million for the year ended December 31, 2014, compared to $13.2 million in the prior year.

Adjusted EBITDA for the year ended December 31, 2014 was $16.3 million or 9.9% of revenue, compared to $29.4 million or 15.0% of revenue for 2013, a decline of $13.1 million, of which $5.0 million is attributable to the HCRA segment.

Net loss for the year ended December 31, 2014 was $(7.5) million, or $(0.26) per basic and diluted share, compared to a net loss of $(0.2) million, or $(0.01) per basic and diluted share in the prior year.

Net cash provided by operating activities for the year ended December 31, 2014 was $10.0 million compared to $18.4 million in the prior year.

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Liquidity

As of December 31, 2014, the Company had unrestricted cash and cash equivalents of $25.7 million, with $10.2 million held in the U.S. and the remainder held outside the U.S. The Company has no borrowings against its revolving credit facility and no debt outstanding.

Stock Repurchase Program

During the fourth quarter of 2014, the Company repurchased approximately 0.5 million shares of its outstanding common stock for an aggregate cost of $2.7 million. Since the February 2014 announcement of the Company’s stock repurchase program through February 27, 2015, the Company has repurchased 4.2 million shares, or 14.1% of its common stock outstanding as of the date of the announcement. As of February 27, 2015, the Company had 26.1 million shares of common stock outstanding.

Fourth Quarter Earnings Call

As previously announced, management will hold a conference call later this morning at 8:30 AM (Eastern time) to discuss the Company’s fourth quarter 2014 financial results. To access the conference call, listeners in the U.S. and Canada should dial (877) 755-7423 at least 5 minutes prior to the start of the conference. Listeners outside the U.S. and Canada should dial (678) 894-3069. To be admitted to the call, listeners should use passcode 78920789.

This teleconference will also be audiocast on the Internet at www.prgx.com (click on “Events & Presentations” under “Investors”). A replay of the audiocast will be available at the same location on www.prgx.com beginning approximately two hours after the conclusion of the live audiocast, extending through March 31, 2015. Please note that the Internet audiocast is “listen-only.” Microsoft Windows Media Player is required to access the live audiocast and the replay and can be downloaded from www.microsoft.com/windows/mediaplayer.

About PRGX Global, Inc.

Headquartered in Atlanta, Georgia, PRGX Global, Inc. is the world’s leading provider of accounts payable recovery audit services. With over 1,400 employees, the Company operates and serves clients in more than 30 countries and provides its services to over 75% of the top 20 global retailers. PRGX is also pioneering Profit Discovery, a unique combination of audit, analytics and advisory services that improves client financial performance. For additional information, please visit PRGX at www.prgx.com.

Forward-Looking Statements

In addition to historical information, this press release includes certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements include both implied and express statements regarding the Company’s overall condition, growth initiatives and prospects, the Company’s claims production volume and expectations regarding backlog of spend to audit, the Company’s efforts to rationalize its expense structure, and the long term business objectives for the Company. Such forward-looking

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statements are not guarantees of future performance and are subject to risks, uncertainties and other factors that may cause the actual results, performance or achievements of the Company to differ materially from the historical results or from any results expressed or implied by such forward-looking statements. Risks that could affect the Company’s future performance include revenue that does not meet expectations or justify costs incurred, the Company’s ability to develop material sources of new revenue in addition to revenue from its core recovery audit services, changes in the market for the Company’s services, the Company’s ability to retain and attract qualified personnel, changes to Medicare and Medicaid recovery audit contractor programs and the effects of the Company’s decision to withdraw from the Medicare RAC rebid process, the Company’s ability to integrate recent and future acquisitions, uncertainty in the credit markets, the Company’s ability to maintain compliance with its financial covenants, client bankruptcies, loss of major clients, and other risks generally applicable to the Company’s business. For a discussion of other risk factors that may impact the Company’s business, please see the Company’s filings with the Securities and Exchange Commission, including its Form 10-K filed on March 14, 2014. The Company disclaims any obligation or duty to update or modify these forward-looking statements.

Non-GAAP Financial Measures

EBIT, EBITDA and Adjusted EBITDA are all “non-GAAP financial measures” presented as supplemental measures of the Company’s performance. They are not presented in accordance with accounting principles generally accepted in the United States, or GAAP. The Company believes these measures provide additional meaningful information in evaluating its performance over time, and that the rating agencies and a number of lenders use EBITDA and similar measures for similar purposes. In addition, a measure similar to Adjusted EBITDA is used in the restrictive covenants contained in the Company’s secured credit facility. However, EBIT, EBITDA and Adjusted EBITDA have limitations as analytical tools, and you should not consider them in isolation, or as substitutes for analysis of the Company’s results as reported under GAAP. In addition, in evaluating EBIT, EBITDA and Adjusted EBITDA, you should be aware that, as described above, the adjustments may vary from period to period and in the future the Company will incur expenses such as those used in calculating these measures. The Company’s presentation of these measures should not be construed as an inference that future results will be unaffected by unusual or nonrecurring items. Schedule 3 to this press release provides a reconciliation of net income (loss) to each of EBIT, EBITDA and Adjusted EBITDA.

This news release was distributed by GlobeNewswire, www.globenewswire.com

SOURCE: PRGX Global, Inc.

CONTACT: PRGX Global, Inc.

investor-relations@prgx.com

Phone: 770-779-3011

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SCHEDULE 1

PRGX Global, Inc. and Subsidiaries

Condensed Consolidated Statements of Operations

(Amounts in thousands, except per share data)

(Unaudited)

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SCHEDULE 2

PRGX Global, Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

(Amounts in thousands)

(Unaudited)

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SCHEDULE 3

PRGX Global, Inc. and Subsidiaries

Reconciliation of Net Income (Loss) to EBIT, EBITDA and Adjusted EBITDA

(Amounts in thousands)

(Unaudited)

EBIT, EBITDA and Adjusted EBITDA are all “non-GAAP financial measures” presented as supplemental measures of our performance. They are not presented in accordance with accounting principles generally accepted in the United States, or GAAP. The Company believes these measures provide additional meaningful information in evaluating the Company’s performance over time, and that the rating agencies and a number of lenders use EBIT, EBITDA and similar measures for similar purposes. In addition, a measure similar to Adjusted EBITDA is used in the restrictive covenants contained in the Company’s secured credit facility. However, EBIT, EBITDA and Adjusted EBITDA have limitations as analytical tools, and you should not consider them in isolation, or as substitutes for analysis of our results as reported under GAAP. In addition, in evaluating EBIT, EBITDA and Adjusted EBITDA, you should be aware that in the future we will incur expenses such as those used in calculating these measures. Our presentation of these measures should not be construed as an inference that our future results will be unaffected by unusual or nonrecurring items.

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SCHEDULE 4

PRGX Global, Inc. and Subsidiaries

Condensed Consolidated Statements of Cash Flows

(Amounts in thousands)

(Unaudited)

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SCHEDULE 5

PRGX Global, Inc. and Subsidiaries

Results by Operating Segment *

(Amounts in thousands)

(Unaudited)

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