Exhibit 99.1

PFSweb Reports Fourth Quarter and Year-End 2012 Results

Full Year 2012 Adjusted EBITDA Nearly Doubles to $12.0 Million Compared to 2011

Allen, Texas, March 27, 2013 — PFSweb, Inc. (Nasdaq: PFSW), an international provider of end-to-end eCommerce solutions, today announced its financial results for the fourth quarter and year ended December 31, 2012.

Mike Willoughby, Chief Executive Officer of PFSweb, stated, “Driven by strong overall eCommerce activity with our existing and new client relationships, PFSweb reported record Service Fee Equivalent Revenue for both the December quarter and calendar year 2012. Meanwhile, we continued to execute on our strategy to achieve scale in our business while increasing operational efficiencies. Those efforts paid off, resulting in the Company nearly doubling its Adjusted EBITDA to $12.0 million for the year ended December 31, 2012, compared to $6.1 million in the year prior.

“During the past four months, we launched six End2End programs for new clients, including sites for BCBGMAXAZRIA, BCBGENERATION, HERVÉ LÉGER BY MAX AZRIA, Pandora and Diageo. We also launched new fulfillment programs for two health and beauty brands under a new master contract with a major consumer packaged goods company. In addition, we continue to have a strong business pipeline with more than $45 million in average annual contract value based on client projections. As a result of the capital investments we made in 2012 to improve the scalability and efficiency of our warehouse, distribution and technology capabilities to handle holiday peak seasons, our operational performance during our fourth quarter was very strong. With our recent holiday success behind us, we are poised to not just meet, but exceed, our clients’ expectations while demonstrating that we can deploy best-in-class eCommerce solutions for our clients and drive value for shareholders,” added Mr. Willoughby.

Summary of consolidated results for the fourth quarter ended December 31, 2012:

Summary of consolidated results for the year ended December 31, 2012:

Mr. Willoughby continued, “As we announced yesterday, I have assumed the role of CEO from Mark Layton, who is leaving the company to pursue other business opportunities. As part of the transition, the management team and I began a comprehensive review of our business and we have begun implementing a set of new initiatives, including headcount reductions and organizational realignment, new internal systems and procedures to improve operating efficiency, and investing in our agency services business that provides high value to our clients and generates higher margins. We will continue this review to find ways to capture additional profitable revenue and further reduce operating costs throughout the Company. We believe these activities will help ensure PFSweb becomes a sustainably profitable, growing company.”

“I am very pleased with our strong performance to close out 2012. While we are excited by the opportunities we see in 2013, particularly in current client expansion, international markets and the omni-channel arena, we will be challenged by the previously disclosed transition of certain service fee client programs and by reduced product revenues in our Business & Retail Connect Segment. As a result, we are currently targeting calendar year 2013 Service Fee Equivalent Revenue to be in the range of $110 million to $115 million, compared with $130 million in 2012. The initiatives discussed above have enabled us to mitigate much of the impact of this revenue decline on Adjusted EBITDA, which we expect will be in the range of $8 million to $10 million, excluding the impact of any restructuring expenses, which are expected to be primarily recognized in our March 2013 quarter. We further expect the impact of the revenue decline to be primarily focused in our June and September

quarters, as we expect to launch new client engagements in the next few months which will positively impact our fourth quarter. With these new clients and the anticipated expansion of several existing clients, we believe we are well positioned for a strong resurgence in calendar year 2014,” Mr. Willoughby concluded.

Conference Call Information

Management will host a conference call at 11:00 am Eastern Time (10:00 am Central Time) on Wednesday, March 27, 2013, to discuss the latest corporate developments and results. To listen to the call, please dial (888) 562-3356 and enter pin number 22248664 at least five minutes before the scheduled start time. Investors can also access the call in a “listen only” mode via the Internet at the Company’s website, www.pfsweb.com or www.kcsa.com. Please allow extra time prior to the call to visit the site and download any necessary audio software.

A digital replay of the conference call will be available through April 29, 2013 at (855) 859-2056, pin number 22248664. The replay also will be available at the Company’s website for a limited time.

Non-GAAP Financial Measures

This news release may contain certain non-GAAP measures, including non-GAAP net income (loss), Earnings Before Interest, Income Taxes, Depreciation and Amortization (“EBITDA”), Adjusted EBITDA and Service Fee Equivalent Revenue.

Non-GAAP net income (loss) represents net income (loss) calculated in accordance with U.S. GAAP as adjusted for the impact of non-cash stock-based compensation expense, loss from discontinued operations, lease termination costs and certain move related expenses.

EBITDA represents earnings (or losses) before loss from discontinued operations, interest, income taxes, depreciation, and amortization. Adjusted EBITDA further eliminates the effect of stock-based compensation, lease termination costs and certain move related expenses.

Service Fee Equivalent Revenue represents service fee revenue plus the gross profit earned on product revenue.

Non-GAAP net income (loss), EBITDA, Adjusted EBITDA and Service Fee Equivalent Revenue are used by management, analysts, investors and other interested parties in evaluating our operating performance compared to that of other companies in our industry. The calculation of non-GAAP net income (loss) eliminates the effect of stock-based compensation, loss from discontinued operations, lease termination costs and certain move related expenses and EBITDA and Adjusted EBITDA further eliminate the effect of financing, income taxes and the accounting effects of capital spending, which items may vary from different companies for reasons unrelated to overall operating performance. Service Fee Equivalent Revenue allows client contracts with similar operational support models but different financial models to be combined as if all contracts were being operated on a service fee revenue basis.

PFSweb believes these non-GAAP measures provide useful information to both management and investors by excluding certain expenses that may not be indicative of its core operating results. These measures should be considered in addition to results prepared in accordance with GAAP, but should not be considered a substitute for, or superior to, GAAP results. The non-GAAP measures included in this press release have been reconciled to the GAAP results in the attached tables.

About PFSweb, Inc.

PFSweb is engaged by iconic brands to enable and manage customized eCommerce and omni-channel commerce initiatives. PFSweb’s iCommerce Hub(SM) technology ecosystem offers retailers a multi-channel order management system that allows partner/client data integration and international payment processing. PFSweb’s iCommerce Professional Service(SM) provides interactive marketing services, eCommerce web site development and support services, IT development services, content management, customer intelligence and relationship and account management services. PFSweb’s iCommerce Centers of Excellence(SM) provides global fulfillment and logistics, high-touch customer care, client financial services and technology hosting.

Together, PFSweb’s iCommerce Solutions allows for international reach and expertise in both direct-to-consumer and business-to-business initiatives. PFSweb supports organizations across multiple industries including Procter & Gamble, L’Oreal, LEGO, Columbia Sportswear, Sorel, Carter’s, AAFES, Riverbed, Ricoh, Hawker Beechcraft Corp, Roots Canada Ltd., Diageo, BCBGMAXAZRIA, BCBGENERATION and HERVÉ LÉGER BY MAX AZRIA. PFSweb is headquartered in Allen, TX with additional locations in Tennessee, Mississippi, Canada, Belgium, and the Philippines.

To find out more about PFSweb (NASDAQ: PFSW), visit the company’s website at http://www.PFSweb.com.

The matters discussed herein consist of forward-looking information under the Private Securities Litigation Reform Act of 1995 and is subject to and involves risks and uncertainties, which could cause actual results to differ materially from the forward-looking information. PFSweb’s Annual Report on Form 10-K for the year ended December 31, 2011 and Quarterly Report on Form 10-Q for the three and nine months ended September 30, 2012 identify certain factors that could cause actual results to differ materially from those projected in any forward looking statements made and investors are advised to review the Annual and Quarterly Reports and the Risk Factors described therein. PFSweb undertakes no obligation to update publicly any forward-looking statement for any reason, even if new information becomes available or other events occur in the future. There may be additional risks that we do not currently view as material or that are not presently known.

(Financial Tables Below)

PFSweb, Inc. and Subsidiaries

Preliminary Unaudited Condensed Consolidated Statements of Operations (A)

(In Thousands, Except Per Share Data)

PFSweb, Inc. and Subsidiaries

Reconciliation of certain Non-GAAP Items to GAAP

(In Thousands, Except Per Share Data)

PFSweb, Inc. and Subsidiaries

Preliminary Unaudited Condensed Consolidated Balance Sheets

(In Thousands, Except Share Data)

PFSweb, Inc. and Subsidiaries

Preliminary Unaudited Consolidating Statements of Operations

For the Three Months Ended December 31, 2012

(In Thousands)

Note: Business and Retail Connect includes our Supplies Distributors and PFSweb Retail Connect operations, which operate similar financial models on behalf of our client relationships.

PFSweb, Inc. and Subsidiaries

Preliminary Unaudited Consolidating Statements of Operations

For the Twelve Months Ended December 31, 2012

(In Thousands)

Note: Business and Retail Connect includes our Supplies Distributors and PFSweb Retail Connect operations, which operate similar financial models on behalf of our client relationships. PFSweb and PFSweb Retail Connect include certain ongoing activity formerly reported as eCOST.

PFSweb, Inc. and Subsidiaries

Unaudited Consolidating Statements of Operations

For the Three Months Ended December 31, 2011

(In Thousands)