Exhibit 99.1

NEWS RELEASE

TO BUSINESS EDITOR:

PEOPLES FINANCIAL SERVICES CORP. REPORTS EARNINGS

Scranton, PA, February 12, 2014 – Peoples Financial Services Corp. (“Peoples”) (OTCQB: PFIS), the bank holding company for Peoples Security Bank and Trust Company, today reported unaudited financial results at and for the three and twelve-month periods ended December 31, 2013. Peoples, which completed a merger with Penseco Financial Services Corporation (“Penseco”) on November 30, 2013, reported net income of $5.1 million, or $1.07 per basic and diluted weighted average share, compared to $10.6 million, or $2.37 per share, reported by Penseco for the twelve months ended December 31, 2012. Peoples reported a net loss of $2.8 million, $0.50 per share, for the three months ended December 31, 2013, compared to net income of $2.7 million, or $0.61 per share, reported by Penseco for the three months ended December 31, 2012.

The merger with Penseco had a significant impact on the results of operations. The merger of equals between Peoples and Penseco is accounted for as a reverse acquisition of Peoples by Penseco. As a result of the reverse merger, Peoples is the legal acquirer and Penseco is the accounting acquirer. In a reverse merger the historical financial statements are those of the accounting acquirer. Accordingly, the results for the year ended December 31, 2013, include the operating results of Penseco for the entire year and the operating results of Peoples since November 30, 2013. All prior period information represents the results of Penseco and, consequently, comparisons may not be particularly meaningful. The results for the twelve-month period ended December 31, 2013 also include pre-tax merger expenses of approximately $5.1 million.

INCOME STATEMENT REVIEW

Tax-equivalent net interest income for the twelve months ended December 31, 2013, increased $0.9 million, or 2.6%, to $35.4 million from $34.5 million in 2012. A $0.3 million decrease in tax-equivalent total interest income was more than offset by a decrease in total interest expense of $1.2 million. Growth in average interest-earning assets of $56.7 million, offset partially by a 32 basis point decrease in the tax-equivalent yield on interest-earning assets, were the primary factors contributing to the increase in tax-equivalent net interest income. Specifically, the tax-equivalent yield on the loan portfolio decreased 37 basis points to 4.88% in 2013 from 5.25% in 2012 as the low interest rate environment caused loan repayments to be redeployed into loans originated at reduced rates. In addition, average loans increased $53.7 million or 8.4% comparing 2013 and 2012. The tax-equivalent yield on total investments was also impacted by the low interest rate environment decreasing 24 basis points to 3.17% in 2013 from 3.41% in 2012 as cash flows were reinvested into lower yielding bonds. Average total investments decreased $2.1 million or 1.1% in 2013 compared to 2012. Partially offsetting the decrease in yield and aiding the positive effects of the increase in interest-earning assets was a decrease of 22 basis points in the cost of funds, which was the primary factor leading to the decreased interest expense. The tax-equivalent net interest margin for the twelve months ended December 31, 2013 decreased 15 basis points to 3.90% from 4.05% in 2012. The net interest

margin for the fourth quarter of 2013 decreased to 3.82%, compared to 3.88% for the prior quarter, and 3.97% for the corresponding quarter of 2012. Tax-equivalent adjustments were calculated using the prevailing federal statutory tax rate of 34.0%.

The provision for loan losses totaled $2.4 million in 2013, compared to $924.0 thousand in 2012. The provision for loan losses was $1.0 million for the fourth quarter of 2013 compared to $147.0 thousand for the corresponding period of 2012. The increase in the loan loss provision in the fourth quarter of 2013 was primarily due to the downgrade and placement of two large loans on nonaccrual status totaling approximately $7.0 million.

Noninterest income totaled $11.8 million in 2013, an increase of $321.0 thousand or 2.8% from $11.4 million in 2012. Increases in service charges, fees and commission and income from fiduciary and wealth management services more than offset decreases in revenues from merchant services and mortgage banking activities. The inclusion of Peoples noninterest income from the date of the merger also impacted 2013 results. For the fourth quarter of 2013, noninterest income increased $41.0 thousand to $2.9 million compared to the fourth quarter of 2012.

Noninterest expense for the twelve months ended December 31, 2013, increased $8.1 million or 27.8% to $37.2 million, from $29.1 million in 2012. The recognition of merger related expense of $5.1 million along with a net loss of $1.4 million to extinguish a post retirement life insurance liability were the primary contributors to the increase in noninterest expense in 2013. Also contributing to the increase was the inclusion of the Peoples operations from the date of the merger. For the fourth quarter, noninterest expense totaled $15.8 million in 2013, an increase of $8.7 million from $7.2 million in 2012 due to the aforementioned expenses.

BALANCE SHEET REVIEW

Total assets, loans and deposits totaled $1.7 billion, $1.2 billion and $1.4 billion, respectively, at December 31, 2013. Although loans, net and deposits increased 6.7% and 2.7%, respectively, considering only historical Penseco information, the majority of the total 2013 increases over the 2012 year-end balances were the result of the merger. In accordance with the acquisition accounting for the merger, the historical assets and liabilities of Peoples have been recorded at their respective estimated fair values on the date of the merger. The estimated fair values are subject to change for up to one year after the date of the merger if information unknown relative to closing date fair values becomes available.

Total investments were $317.0 million at December 31, 2013, including $299.7 million securities classified as available-for sale and $17.3 million classified as held-to-maturity. Total deposits consisted of $298.9 million in noninterest-bearing and $1.1 billion in interest-bearing deposits at December 31, 2013.

Stockholders’ equity equaled $238.5 million or $31.58 per share at December 31, 2013, and $132.5 million or $29.65 per share at December 31, 2012. Dividends declared for the 2013 amounted to $1.23 per share, as adjusted for the merger exchange ratio of 1.3636.

Nonperforming assets equaled $16.8 million or 1.42% of loans, net and foreclosed assets at December 31, 2013. The allowance for loan losses equaled $8.7 million or 0.74% of loans, net, at December 31, 2013, compared to $7.0 million or 1.11% at year-end 2012. The decrease in the ratio of the allowance for loan losses as a percentage of loans, net, is primarily a function of

acquisition accounting, whereby the historical loan portfolio of Peoples was recorded at its estimated fair value, including a $14.1 million discount to reflect credit risk, and the Peoples historical allowance for loan losses was eliminated. Loans charged-off, net of recoveries, for the twelve months ended December 31, 2013, equaled $660.0 thousand or 0.01% of average loans, compared to $685.0 thousand or 0.11% of average loans in 2012.

Peoples Financial Services Corp. is the parent company of Peoples Security Bank and Trust Company, a community bank serving Lackawanna, Luzerne, Monroe, Susquehanna, Wayne and Wyoming Counties in Pennsylvania and Broome County in New York through 26 offices. Each office, interdependent with the community, offers a comprehensive array of financial products and services to individuals, businesses, not-for-profit organizations and government entities. The Company’s business philosophy includes offering direct access to senior management and other officers and providing friendly, informed and courteous service, local and timely decision making, flexible and reasonable operating procedures and consistently applied credit policies.

SOURCE: Peoples Financial Services Corp.

/Contact: MEDIA/INVESTORS, Marie L. Luciani, Investor Relations Officer, 570.346.7741 or m.luciani@pennsecurity.com

Safe Harbor Forward-Looking Statements:

We make statements in this press release, and we may from time to time make other statements, regarding our outlook or expectations for future financial or operating results and/or other matters regarding or affecting Peoples Financial Services Corp., Peoples Security Bank and Trust Company, and its subsidiaries (collectively, “Peoples”) that are considered “forward-looking statements” as defined in Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such forward-looking statements may be identified by the use of such words as “believe,” “expect,” “anticipate,” “should,” “planned,” “estimated,” “intend” and “potential.” For these statements, Peoples claims the protection of the statutory safe harbors for forward-looking statements.

Peoples cautions you that a number of important factors could cause actual results to differ materially from those currently anticipated in any forward-looking statement. Such factors include, but are not limited to: prevailing economic and political conditions, particularly in our market area; credit risk associated with our lending activities; changes in interest rates, loan demand, real estate values and competition; changes in accounting principles, policies, and guidelines; changes in any applicable law, rule, regulation or practice with respect to tax or legal issues; and other economic, competitive, governmental, regulatory and technological factors affecting Peoples’ operations, pricing, products and services and other factors that may be described in Peoples’ Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q as filed with the Securities and Exchange Commission from time to time.

In addition to these risks, acquisitions and business combinations, such as Peoples recent merger with Penseco Financial Services Corporation, present risks other than those presented by the nature of the business acquired. Acquisitions and business combinations may be substantially more expensive to complete than originally anticipated, and the anticipated benefits may be significantly harder-or take longer-to achieve than expected. As regulated financial institutions, our pursuit of attractive acquisition and business combination opportunities could be negatively impacted by regulatory delays or other regulatory issues. Regulatory and/or legal issues related to the pre­ acquisition operations of an acquired or combined business may cause reputational harm to Peoples following the acquisition or combination, and integration of the acquired or combined business with ours may result in additional future costs arising as a result of those issues.

The forward-looking statements are made as of the date of this release, and, except as may be required by applicable law or regulation, Peoples assumes no obligation to update the forward-looking statements or to update the reasons why actual results could differ from those projected in the forward-looking statements.

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Details of Net Interest and Net Interest Margin

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