Exhibit 99.1

NEWS RELEASE

FOR IMMEDIATE RELEASE

Pacific Continental Corporation Reports Third Quarter Results

Balance sheet expansion driven by both organic growth and acquisition

EUGENE, Ore., October 26, 2016 – Pacific Continental Corporation (Nasdaq: PCBK), the holding company of Pacific Continental Bank, today reported financial results for the third quarter ended September 30, 2016.

Third Quarter Highlights:

Net Income Highlights

Net income for the third quarter 2016 was $4.9 million, or $0.23 per diluted share, and included non-core costs associated with our acquisition of Foundation Bank, which were approximately $1.8 million, or approximately $0.06 per diluted share. Also included in third quarter results was $589 thousand, or $0.03 per diluted share, of net income related to the Foundation Bank operations from the time of transaction closing on September 6, 2016. The provision for loan losses expense in the third quarter was $1.4 million, compared to $2.0 million for the second quarter.

Annualized returns on average assets, average equity and average tangible equity for third quarter 2016 were 0.89%, 8.05%, and 10.14%, respectively, compared to 0.53%, 4.67%, and 5.80% for second quarter 2016. Annualized returns on average assets, average equity, and average tangible equity for the nine months ended September 30, 2016 were 0.85%, 7.55%, and 9.43%, respectively, compared to 1.01%, 8.60%, and 10.62% for the same time period in 2015.

“This was a milestone quarter, as we successfully completed the acquisition and integration of Foundation Bank, which has significantly increased our presence and market share in the vibrant Puget Sound region,” said Roger Busse, chief executive officer. “We are proud of our management teams and leadership across all regions, as we continued to drive solid organic growth and earnings.”

Third quarter 2016 noninterest income was $1.9 million, an increase of $172 thousand from the second quarter 2016. Approximately $55 thousand of the increase related to operating income from Foundation Bank while the remainder was due to a one-time payment of $160 thousand received from the Small Business Administration, related to expense reimbursement incurred by a previously acquired bank. There were no gains on sales of securities during the third quarter, compared to $71 thousand during the second quarter.

Noninterest expense for the third quarter 2016 was $13.8 million, this represented a decrease of $1.1 million from the second quarter of 2016, with $556 thousand of the savings resulting from decreased reserving related to our partially self-funded health insurance plan, and $571 thousand resulting from decreased legal and professional expenses. During the second quarter we recorded $550 thousand of additional reserve expense related to higher than forecasted claim activity in our partially self-funded health insurance plan. Claim activity returned to more normal levels for the third quarter. The decrease in legal and professional expenses related to the annual director’s equity grant of $240 thousand that occurred during the second quarter and lower legal bills related to other projects.

Net Interest Margin

The third quarter 2016 net interest margin was 4.22%, a decrease of 5 basis points from the second quarter net interest margin. As we stated during our second quarter earnings call, we anticipated some margin compression during the third quarter and going forward, due primarily to the increased interest expense from our subordinated notes offering in the second quarter 2016. The impact of the interest expense associated with the subordinated debt was approximately 11 basis points during the third quarter. Accretion income for the third quarter 2016 was $877 thousand compared to $156 thousand for the second quarter 2016. As outlined below, the core margin was 3.99% for the third quarter 2016 compared to 4.20% for the second quarter 2016.

Balance Sheet Highlights

Gross loans grew by $322.5 million in third quarter 2016, and totaled $1.81 billion at September 30, 2016. Included in the loan growth was $270.5 million of loans acquired in the Foundation Bank transaction. Organic loan growth was $52.1 million for the third quarter. Gross loan growth through the first nine months of 2016 was $402.6 million. Excluding the $270.5 million in acquired loans, our organic loan growth was $132.1 million, or 12.55% annualized. At September 30, 2016, loans to dental practitioners totaled $370.1 million and represented 20.46% of the loan portfolio. This represented an increase of $325 thousand over second quarter 2016, where loans to dental practitioners represented 24.88% of the loan portfolio.

Period-end Company-defined core deposits at September 30, 2016, were $2.05 billion, an increase of $541.3 million from the second quarter 2016. Included in the core deposit growth was $396.5 million of deposits acquired in the Foundation Bank transaction. Organic core deposit growth was $144.8 million for the third quarter, with $84.3 million, or 58.22%, of our growth coming from the large depositor portfolio. The increase from the large depositor portfolio was led by one client that increased its deposits by $64.3 million during the quarter. The increase was the result of a business sale and we anticipate that the majority of these funds will leave the Bank during the fourth quarter. Core deposit growth through the first nine months of 2016 was $515.4 million. Excluding the $396.5 million in acquired deposits, our organic core deposit growth was $118.9 million, or 10.35% annualized.

“We are proud of our outstanding team of bankers and they continue to produce solid organic loan growth”, said Casey Hogan, chief operating officer. “Our organic core deposit growth was outstanding in the third quarter and we are pleased that more than 40% of the growth came in our small depositor portfolio.”

Asset Quality

As of September 30, 2016, the allowance for loan losses as a percentage of outstanding loans was 1.14%, a decrease from the 1.29% reported at June 30, 2016. The decrease was largely the result of the Foundation Bank acquired loans included at their fair value, net of any credit risk adjustments. At September 30, 2016, the allowance for loan losses as a percentage of nonperforming loans, net of government guarantees, decreased to 210.23% from 1,172.72% at June 30, 2016. During the third quarter 2016, the Company recorded net recoveries of $24 thousand, compared to net loan losses of $419 thousand during the second quarter 2016. During the third quarter, the Company made a $1.4 million provision for loan losses compared to $2.0 million in the second quarter 2016.

At September 30, 2016, nonperforming assets, net of government guarantees, totaled $22.8 million, or 0.90% of total assets, compared to $13.7 million, or 0.68% of total assets, at June 30, 2016. The increase primarily related to loans and other real estate owned acquired in the Foundation Bank transaction. Nonperforming assets at September 30, 2016, were comprised of $9.8 million of nonperforming loans, net of government guarantees of $2.4 million, and $13.1 million in other real estate owned. Loans past-due 30-89 days were 0.01% of total loans at September 30, 2016, compared to 0.02% of total loans at June 30, 2016.

Capital Adequacy

The Company’s consolidated capital ratios continued to be above the minimum thresholds for the FDIC’s “well-capitalized” designation. At September 30, 2016, the Company’s capital ratios were as follows:

Non-GAAP Financial Measures

In addition to results presented in accordance with generally accepted accounting principles (GAAP), this press release contains certain non-GAAP financial measures. The Company believes that such non-GAAP financial measures provide investors with information useful in understanding the Company’s financial performance; however, readers of this release are urged to review these non-GAAP financial measures in conjunction with the GAAP results as reported.

Certain Financial measures such as tangible shareholders’ equity, and tangible assets, are considered non-GAAP measures. Management believes including non-GAAP measures along with GAAP measures provides investors with a broader understanding of capital adequacy, funding sources and revenue trends. Tangible shareholders’ equity is calculated as total shareholders’ equity less goodwill and core deposit intangible assets. Additionally, tangible assets are calculated as total assets less goodwill and core deposit intangible assets.

The following table presents a reconciliation of ending total shareholders’ equity (GAAP) to ending tangible shareholders’ equity (non-GAAP), and total assets (GAAP) to total tangible assets (non-GAAP):

Conference Call and Audio Webcast

Management will conduct a live conference call and audio webcast for interested parties relating to the Company’s results for the third quarter 2016 on Thursday, October 27, 2016, at 11:00 a.m. Pacific / 2:00 p.m. Eastern. To listen to the conference call, interested parties should call: (855) 215-7498 Passcode: 1554389. Following the formal remarks, a question and answer session will be open to all interested parties. The webcast will be available via Pacific Continental’s website www.therightbank.com. To listen to the live audio webcast, click on the webcast presentation link on the Company’s home page a few minutes before the presentation is scheduled to begin. An audio webcast replay is typically available within twenty-four hours following the live webcast and will be archived for one year on the Pacific Continental website. Any questions regarding the conference call presentation or webcast should be directed to Shannon Coffin, executive administrative assistant, at 541-686-8685.

About Pacific Continental Bank

Pacific Continental Bank, the wholly-owned operating subsidiary of Pacific Continental Corporation, delivers highly personalized services through fifteen banking offices in Oregon and Washington. The Bank also operates loan production offices in Tacoma, Washington and Denver, Colorado. Pacific Continental, with slightly more than $2.5 billion in assets, has established one of the most unique and attractive metropolitan branch networks in the Pacific Northwest with offices in three of the region’s largest markets, including Seattle, Portland and Eugene. Pacific Continental targets the banking needs of community-based businesses, health care professionals, professional service providers and nonprofit organizations.

Since its founding in 1972, Pacific Continental Bank has been honored with numerous awards and recognitions from highly regarded third-party organizations including The Seattle Times, the Portland Business Journal, the Seattle Business magazine and Oregon Business magazine. A complete list of the company’s awards and recognitions – as well as supplementary information about Pacific Continental Bank – can be found online at www.therightbank.com. Pacific Continental Corporation’s shares are listed on the Nasdaq Global Select Market under the symbol “PCBK” and are a component of the Russell 2000 Index.

Forward-Looking Statement Safe Harbor

This release contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 (“PSLRA”). These statements can be identified by the fact that they do not relate strictly to historical or current facts. Forward-looking statements often use words such as “anticipates,” “targets,” “expects,” “estimates,” “intends,” “plans,” “goals,” “believes” and other similar expressions or future or conditional verbs such as “will,” “should,” “would” and “could.” The forward-looking statements made represent Pacific Continental’s current estimates, projections, expectations, plans or forecasts of its future results and revenues, including but not limited to statements about performance, loan or deposit growth, net interest margin compression, strategic focus, capital position, liquidity, credit quality, credit quality trends, and the impact and effects of recent or pending acquisitions. These statements are not guarantees of future results or performance and involve certain risks, uncertainties and assumptions that are difficult to predict and are often beyond Pacific Continental’s control. Actual outcomes and results may differ materially from those expressed in, or implied by, any of these forward-looking statements. You should not place undue reliance on any forward-looking statement and should consider all of the following uncertainties and risks, as well as those more fully discussed under “Risk Factors”, “Business”, and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Pacific Continental’s most recent Annual Report on Form 10-K, Quarterly

Report on Form 10-Q, and in any of Pacific Continental’s subsequent SEC filings, including the high concentration of loans of the Company’s banking subsidiary in commercial and residential real estate lending and in loans to dental professionals; adverse economic trends in the United States and the markets we serve affecting the Bank’s borrower base; continued erosion or sustained low levels of consumer confidence; changes in the Federal Reserve’s monetary policies and the regulatory environment and increases in associated costs, particularly ongoing compliance expenses and resource allocation needs; vendor quality and efficiency; the Company’s ability to control risks associated with rapidly changing technology both from an internal perspective as well as for external providers; operational systems or infrastructure failures; increased competition; fluctuating interest rates; a tightening of available credit; the potential adverse impact of legal or regulatory proceedings; and risks related to acquisitions, including integration, retention of key personnel and business, anticipated cost savings and results and performance of the acquired company or the combined entity. Pacific Continental Corporation undertakes no obligation to publicly revise or update any forward-looking statement to reflect the impact of events or circumstances that arise after the date of this release. This statement is included for the express purpose of invoking the PSLRA’s safe harbor provisions.

PACIFIC CONTINENTAL CORPORATION and subsidiary

Consolidated Income Statements

(Dollars in thousands, except share and per share amounts)

(Unaudited)

NA Not applicable

PACIFIC CONTINENTAL CORPORATION and subsidiary

Year-to-Date Consolidated Income Statements

(Dollars in thousands, except share and per share amounts)

(Unaudited)

PACIFIC CONTINENTAL CORPORATION and subsidiary

Consolidated Balance Sheets

(Dollars in thousands, except share and per share amounts)

(Unaudited)

NA Not applicable

PACIFIC CONTINENTAL CORPORATION and subsidiary

Loans by Type

(Dollars in thousands)

(Unaudited)

PACIFIC CONTINENTAL CORPORATION and subsidiary

Selected Other Financial Information and Ratios

(Dollars in thousands)

(Unaudited)