Exhibit 99.1

11730 Plaza America, Suite 700

Reston, VA 20190

News Release

Contacts:

Brian J. Clark, President

(703) 707-6900

NCI Reports Fourth Quarter and Fiscal Year 2012 Financial and Operating Results

RESTON, VA, February 28, 2013 – NCI, Inc. (NASDAQ:NCIT), a leading provider of information technology (IT), engineering, logistics, and professional services and solutions to U.S. Federal Government agencies, today announced financial and operating results for the fourth quarter and fiscal year ended December 31, 2012.

Fourth quarter and fiscal year 2012 revenue was in the upper half of management’s guidance range issued last quarter; diluted EPS—excluding the non-cash, after-tax impairment charges—exceeded the high end of guidance by $0.03.

Fourth Quarter 2012 Results

For the fourth quarter of 2012, NCI reported revenue of $89.7 million compared with fourth quarter 2011 revenue of $114.8 million, a decrease of 21.9%. The year-over-year decrease in revenue was the result of reductions of scope, the expiration of task orders and contracts, and certain lost contract re-competes, which totaled approximately $14 million; the ending of base realignment and closure (BRAC)-related and other non-core

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projects, which collectively totaled approximately $7 million; and a decrease in revenue from NCI’s PEO Soldier program, which accounted for approximately $4 million of the year-over-year decline in revenue for the fourth quarter of 2012. During the fourth quarter of 2012, PEO Soldier accounted for 15.9% of total revenue, down from 16.3% sequentially and 16.2% in the fourth quarter of 2011.

As previously disclosed, during the fourth quarter of 2012, in accordance with the NCI’s annual testing and due to its further depressed market value, the continued uncertainty in funding levels of various Federal Government agencies, and the ongoing delays of expected contract procurement opportunities, the company performed a goodwill impairment analysis as well as a review of intangible assets. The results of this analysis indicated that the remaining balance of the company’s goodwill and a portion of its intangible assets were impaired; accordingly, the company recorded an impairment charge totaling $58.0 million ($36.7 million after tax) in the fourth quarter of 2012.

GAAP operating loss for the fourth quarter of 2012 was $54.3 million due to costs associated with the impairment charge. Excluding the effects of this item, NCI reported operating income of $3.7 million for the fourth quarter of 2012. GAAP operating income for the three months ended December 31, 2011, was $0.8 million. Operating income for the fourth quarter of 2011 includes the effect of the $3.1 million restructuring charge taken during the period. Excluding the effects of the restructuring charge, operating income for the fourth quarter of 2011 was $3.9 million.

Excluding the effects of the impairment charge, operating margin for the fourth quarter of 2012 was 4.1%. Excluding the effect of the restructuring charge, operating margin for the fourth quarter of 2011 was 3.4%. Adjusted operating margin increased primarily as a result of overall improved operational performance as well as the timing of certain award fees and other one-time gains.

GAAP net loss for the fourth quarter of 2012 was $34.7 million. Excluding the impact of the impairment charge, net income for the fourth quarter of 2012 was $2.0 million. GAAP net

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income for the fourth quarter of 2011 was $0.1 million. Excluding the impact of the restructuring charge, fourth quarter 2011 net income was $2.0 million. Excluding the impairment charge, diluted EPS for the fourth quarter of 2012 was $0.15; excluding the impact of the restructuring charge, diluted EPS for the fourth quarter of 2011 was $0.15.

Days sales outstanding (DSO) for the fourth quarter ended December 31, 2012, were 64 days compared with 54 days at September 30, 2012, an increase of 10 days. The sequential increase in DSO reflects a more normalized collection of receivables.

Fiscal Year 2012 Results

For the year ended December 31, 2012, NCI reported revenue of $368.4 million compared with $558.3 million for the year ended December 31, 2011, representing a decrease of $189.9 million, or 34.0%. This decrease in revenue was principally due to the ending of BRAC-related and other non-core projects, which collectively totaled approximately $87 million; a net decrease in revenue as a result of reductions of scope, the expiration of task orders and contracts, and certain lost contract re-competes, which totaled approximately $79 million; and a decrease in revenue from our PEO Soldier program, which accounted for approximately $24 million of the year-over-year decline in revenue.

Our PEO Soldier contract accounted for $62.4 million and $86.0 million of our revenue in 2012 and 2011, respectively. This represented 16.9% and 15.4% of total revenue in 2012 and 2011, respectively.

GAAP operating loss for 2012 was $140.0 million compared with GAAP operating income $23.8 million in 2011. Excluding the effect of the impairment charges noted above, operating income for 2012 was $13.0 million, or 3.5% of revenue. Excluding the effect of the restructuring charge taken in the fourth quarter of 2011, operating income for 2011 was $27.0 million, or 4.8% of revenue. The year-over-year decline in GAAP operating income was primarily attributable to the

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effects of the impairment charges taken in the third and fourth quarters of 2012. Excluding the effects of the charges taken in 2011 and 2012, the decline in operating income in 2012 was attributable to lower revenue, higher general and administrative costs, and higher depreciation and amortization costs.

GAAP net loss for 2012 was $86.8 million compared with GAAP net income for 2011 of $13.2 million. The decrease in net income year over year is primarily attributable to non-cash, after-tax impairment charges taken in the third and fourth quarters of 2012 totaling $92.3 million. GAAP loss per share for 2012 was $6.51 compared with GAAP diluted earnings per share of $0.95 for 2011. Excluding the effect of the impairment charges, net income for 2012 was $6.9 million, or $0.51 per diluted share. Excluding the effect of the restructuring charge taken in the fourth quarter of 2011, net income for 2011 was $15.0 million, or $1.09 per diluted share.

Cash flow provided by operating activities for fiscal year 2012 was $41.5 million. Capital expenditures were $1.8 million, resulting in 2012 free cash flow of $39.7 million.

NCI reported total backlog at December 31, 2012, of $706 million, of which $212 million was funded. This compares with total backlog at September 30, 2012, of $910 million, of which $249 million was funded, and $1.0 billion, of which $220 million was funded, at December 31, 2011.

After a detailed examination of the company’s backlog in light of the anticipated impact of secular declines in Federal spending, NCI de-booked approximately $130 million from backlog in the fourth quarter of 2012. The backlog reduction affects anticipated revenue from contracts across the company’s base of business. This was offset by bookings of approximately $15 million in the fourth quarter.

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Share Repurchase

During 2010, NCI’s Board of Directors authorized management to repurchase up to $25.0 million of our Class A common stock pursuant to a stock repurchase program. During the fourth quarter of 2012, NCI repurchased 93,735 shares of our Class A common stock at an average price of $5.54 per share for a total purchase price of $0.5 million. At December 31, 2012, $16.7 million was remaining under the Board of Directors’ authorization for shares repurchases.

Management’s Outlook

Based on the company’s current contract backlog and management’s estimate as to future tasking and contract awards, NCI is issuing guidance for its first quarter and fiscal year 2013. The table below represents management’s current expectations about future financial performance, based on information available at this time:

“We believe it is prudent at this point to issue guidance with a range of revenue and earnings that reflects the turmoil and uncertainty we’re seeing in the current budgetary climate as a result of expected secular declines in Federal budgets beginning in 2013,” said Charles K. Narang, NCI’s Chairman and CEO. “The challenge will be to accurately forecast the size and schedule of upcoming proposals and awards; however, we believe NCI has never been better positioned to successfully pursue opportunities in our pipeline as they emerge.”

“Although we made great strides in growth initiatives in 2012, the delays in the timing of bids on planned key procurements does not allow for meaningful contribution from new revenue in 2013’s outlook,” said NCI’s President, Brian J. Clark. “While we will continue our focus on cost containment and incremental revenue pick-ups throughout the year to protect and enhance earnings per share, we will define success in 2013 primarily in terms of our bookings momentum toward the end of 2013 and into 2014.

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We made substantial investments throughout 2012 aimed at revamping our new business acquisition processes and increasing win probabilities. We’re encouraged by the progress we’ve made in these areas thus far, and we are continuing to invest in NCI’s business development and capture efforts in 2013 with the belief that this added investment will be vital to winning new business this year and beyond.”

Conference Call Information

As previously announced, NCI will conduct a conference call today at 5:00 p.m. EST to discuss fiscal fourth quarter and full year 2012 results and issue guidance for 2013.

Analysts and institutional investors may listen to the conference call by dialing (855) 327-6837 (United States/Canada) or (631) 982-4565 (international) with pass code 90227. The conference call will be simultaneously provided as a webcast through a link on the NCI website (www.nciinc.com).

A replay of the conference call will be available approximately two hours after the conclusion of the call through March 14, 2013, by dialing (877) 870-5176 (United States/Canada) or (858) 384-5517 (international) and entering pass code 90227.

About NCI, Inc.

NCI is a leading provider of information technology (IT) and professional services and solutions to U.S. Federal Government agencies. Our award-winning expertise encompasses areas critical to our customers’ mission objectives, including enterprise systems management; network engineering; cybersecurity and information assurance; software development and systems engineering; program management, acquisition, and lifecycle support; engineering and logistics; health IT and informatics; and training and simulation. Headquartered in Reston, VA, NCI has approximately 2,200 employees at nearly 100 locations worldwide. For more information, visit our website at www.nciinc.com or email investor@nciinc.com.

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Forward-Looking Statement: Statements and assumptions made in this press release, which do not address historical facts, constitute “forward-looking” statements that NCI believes to be within the definition in the Private Securities Litigation Reform Act of 1995 and involve risks and uncertainties, many of which are outside of our control. Words such as “may,” “will,” “intends,” “should,” “expects,” “plans,” “projects,” “anticipates,” “believes,” “estimates,” “predicts,” “potential,” “continue,” or “opportunity,” or the negative of these terms or words of similar import are intended to identify forward-looking statements.

Such statements are subject to factors that could cause actual results to differ materially from anticipated results. The factors that could cause actual results to differ materially from those anticipated include, but are not limited to, the following: our dependence on our contracts with Federal Government agencies, particularly within the U.S. Department of Defense, for substantially all of our revenue; a reduction in the overall U.S. Defense budget, volatility in spending authorizations for Defense and Intelligence-related programs by the U.S. Federal Government or a shift in spending to programs in areas where we do not currently provide services; Federal Government shutdowns (such as that which occurred during the Federal Government’s 1996 fiscal year), other potential delays in the Federal Government appropriations process, or budgetary cuts resulting from Congressional committee recommendations or automatic sequestration under the Budget Control Act of 2011, risk of contract performance or termination; failure to achieve contract awards in connection with recompetes for present business and/or competition for new business; adverse results of Federal Government audits of our government contracts; Government contract procurement (such as bid protest, small business set asides, etc.) and termination risks; competitive factors such as pricing pressures and competition to hire and retain employees (particularly those with security clearances); Federal Government agencies awarding contracts on a technically acceptable/lowest cost basis in order to reduce expenditures failure to successfully identify and integrate future acquired companies or businesses into our operations or to realize any accretive or synergistic effects from such acquisitions or to effectively integrate acquisitions appropriate to the achievement of our strategic plans; economic conditions in the United States, including conditions that result from terrorist activities or war; material changes in laws or regulations applicable to our businesses, particularly legislation affecting (i) government contracts for services, (ii) outsourcing of activities that have been performed by the government, (iii) government contracts containing organizational conflict of interest (OCI) clauses, (iv) delays related to agency specific funding freezes, (v) competition for task orders under Government Wide Acquisition Contracts (GWACs), agency-specific Indefinite Delivery/Indefinite Quantity (IDIQ) contracts and/or schedule contracts with the General Services Administration; and (vi) our own ability to achieve the objectives of near-term or long-range business plans, including internal systems failures. These and other risk factors are more fully discussed in the section titled “Risks Factors” in NCI’s Form 10-K filed with the Securities and Exchange Commission (SEC), and from time to time, in other filings with the SEC, such as our Forms 8-K and Forms 10-Q.

Any projections of revenue, margins, expenses, earnings, tax provisions, cash flows, benefit obligations, share repurchases, any statements of the plans, strategies and objectives of management for future operations, the execution of cost reduction programs and restructuring and integration plans are also subject to factors that could cause actual results to differ materially from anticipated results.

The forward-looking statements included in this news release are only made as of the date of this news release and NCI undertakes no obligation to publicly update any of the forward-looking statements made herein, whether as a result of new information, subsequent events or circumstances, changes in expectations or otherwise.

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Financial tables follow

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NCI, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share data)

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NCI, INC.

CONSOLIDATED BALANCE SHEETS

(in thousands, except par value)

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NCI, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

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NCI, INC.

RECONCILIATION OF NON-GAAP MEASURES

(UNAUDITED)

(in thousands, except per share data)

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