Exhibit 99.1

Press Release

PRGX Global, Inc. Announces Fourth Quarter

and Full Year 2016 Financial Results

ATLANTA, February 28, 2017 — PRGX Global, Inc. (Nasdaq:PRGX), a global leader in Recovery Audit and Spend Analytics services, today announced its unaudited financial results for the fourth quarter and year ended December 31, 2016.

“I am pleased to report a very solid quarter, with revenue from continuing operations growing 15.0% and adjusted EBITDA increasing 13.8% on a constant dollar basis compared to the same period in 2015. Our largest business, retail recovery audit, grew 17.3%, which is the third consecutive quarter of year over year constant dollar revenue growth,” said Ron Stewart, president and chief executive officer.

“2016 was a watershed year for the company, with 5.5% top line growth on a constant dollar basis in our continuing operations, the first year over year organic growth in more than ten years. This growth was led by improvements in processes and technology in our core recovery audit business, reversing the long term trend of revenue decline,” continued Stewart.

“We believe that this momentum, coupled with the successful closing of the Cost & Compliance Associates and Lavante acquisitions, positions us well for further growth in 2017,” concluded Stewart.

Consolidated Results from Continuing Operations for the Three Months Ended December 31, 2016

Consolidated revenue from continuing operations for the fourth quarter of 2016 was $39.2 million, compared to $35.0 million for the same period last year. On a constant dollar basis adjusted for changes in foreign exchange rates, revenue increased by 15.0% in 2016, compared to the same period in 2015. On a constant dollar basis, revenue from the Recovery Audit Services - Americas segment increased 10.4% in the fourth quarter of 2016 compared to the same period in 2015. On a constant dollar basis, revenue from the Recovery Audit Services – Europe/Asia-Pacific segment increased 29.0% for the fourth quarter of 2016 compared to the same period in 2015. On a constant dollar basis, revenue from the Adjacent Services segment, including the Lavante SIM business, increased 15.1% for the fourth quarter of 2016 compared to the same period in 2015.

Total cost of revenue from continuing operations for the fourth quarter of 2016 was $23.8 million, or 60.9% of revenue, compared to $22.4 million, or 64.0% of revenue, in the same period last year, for a 4.8% improvement as a percentage of revenue.

SG&A expenses from continuing operations for the fourth quarter of 2016 were $11.0 million, compared to $6.9 million in the prior year period. The increase in SG&A expenses was primarily attributable to investments in sales personnel, increased incentive compensation related to the higher year over year revenue, increased stock compensation, Lavante operating costs that were not in the prior year, and US healthcare insurance benefit costs.

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Consolidated net income from continuing operations for the fourth quarter of 2016 was $0.2 million, or $0.01 per basic and diluted share, compared to a net income of $4.8 million, or $0.19 per basic and diluted share, for the same period in 2015.

Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization (Adjusted EBITDA) from continuing operations for the fourth quarter of 2016 was $6.3 million, or 16.2% of revenue, compared to Adjusted EBITDA of $5.5 million, or 15.7% of revenue, in the fourth quarter 2015. 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 Results from Continuing Operations for the Year Ended December 31, 2016

Consolidated revenue from continuing operations for the year ended December 31, 2016, was $140.8 million, compared to $138.3 million for the prior year. On a constant dollar basis, revenue increased 4.5%, compared to the prior year. On a constant dollar basis, revenue from the Recovery Audit Services - Americas segment increased 3.9% in the year ended December 31, 2016, compared to the prior year results. On a constant dollar basis, revenue from the Recovery Audit Services – Europe/Asia-Pacific segment increased 9.6% for 2016 compared to the prior year. As reported, revenue from the Adjacent Services segment declined $1.4 million for 2016 compared to the prior year.

Total cost of revenue from continuing operations for the year ended December 31, 2016, was $91.3 million, or 64.8% of revenue, compared to $93.2 million, or 67.4% of revenue, in the prior year, representing a 3.8% improvement as a percentage of revenue.

SG&A expenses from continuing operations for the year ended December 31, 2016, were $39.4 million, compared to $32.3 million in the prior year. The increase in SG&A expenses was primarily attributable to investments in sales personnel, increased incentive compensation related to the higher year over year revenue, increased stock compensation, costs associated with acquisitions, Lavante operating costs that were not in the prior year, and US healthcare insurance benefit costs.

Consolidated net income from continuing operations for the year ended December 31, 2016, was $2.2 million, or $0.10 per basic and diluted share, compared to net income of $1.5 million, or $0.06 per basic and diluted share, for the prior year.

Adjusted EBITDA from continuing operations for the year ended December 31, 2016, was $16.6 million, or 11.8% of revenue, compared to Adjusted EBITDA from continuing operations of $18.0 million, or 13.0% of revenue, for the prior year. Schedule 3 attached to this press release provides a reconciliation of net income (loss) to each of EBIT, EBITDA and Adjusted EBITDA.

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Cash Flow and Liquidity

Net cash provided by operating activities for the fourth quarter of 2016 was $3.9 million, compared to $1.1 million in the fourth quarter of the prior year. Net cash provided by operating activities for the year ended December 31, 2016, was $10.1 million, compared to $13.4 million for the prior year.

At December 31, 2016, the Company had unrestricted cash and cash equivalents of $15.7 million, and borrowings of $3.6 million against its $20.0 million revolving credit facility.

Stock Repurchase Program

Since the February 2014 announcement of the Company’s stock repurchase program, as of December 31, 2016, the Company has repurchased 8.6 million shares, or 28.7% of its common stock outstanding on the date of the announcement. In December 2016, the Company’s Board of Directors approved a $10 million increase (to $60 million) in the program and extended the duration of the program to December 31, 2017. The Company repurchased approximately 0.9 million shares of its outstanding common stock for an aggregate cost of $3.8 million in the year ended December 31, 2016. As of February 24, 2017, the Company had approximately 21.9 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 and annual 2016 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 76562548.

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, 2017. 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

PRGX Global, Inc. is a global leader in Recovery Audit and Spend Analytics services. With over 1,400 employees, the Company serves clients in more than 30 countries and provides its services to 75% of the top 20 global retailers and over 20% of the top 50 companies in the Fortune 500. PRGX delivers more than $1 billion in cash

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flow improvement for its clients each year. The creator of the recovery audit industry more than 40 years ago, PRGX continues to innovate through technology and expanded service offerings. In addition to Recovery Audit, the Company provides Contract Compliance, Spend Analytics and Supplier Information Management services to improve clients’ financial performance and manage risk. For additional information on PRGX, please visit 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 and growth prospects, the Company’s execution of its business strategy, the Company’s expectations regarding the anticipated benefits from its recently announced acquisitions, and the Company’s investments and improvements in processes and technology in its core recovery audit business. Such forward-looking 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, 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 15, 2016. 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.

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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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