Exhibit 99.2

ENDORSEMENT_LINE SACKPACK MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext Your vote matters – here’s how to vote! You may vote online or by phone instead of mailing this card. Online Go to www.envisionreports.com/PTRS or scan the QR code — login details are located in the shaded bar below. Phone Call toll free 1-800-652-VOTE (8683) within the USA, US territories and Canada Save paper, time and money! Sign up for electronic delivery at www.envisionreports.com/PTRS Using a black ink pen, mark your votes with an X as shown in this example Please do not write outside the designated areas. Special Meeting Proxy Card IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. Proposals — The Board of Directors unanimously recommends a vote FOR Proposal 1, 2 and Proposal 3. 1. Proposal to approve the Agreement and Plan of Merger, dated as of November 4, 2021, by and among OceanFirst Financial Corp. (“OceanFirst”), Coastal Merger Sub Corp. (“merger sub”), and Partners Bancorp (“Partners”), and the transactions contemplated by that agreement, pursuant to which merger sub will merge with and into Partners, as more fully described in the Proxy statement/prospectus. For Against Abstain 2. Proposal to approve, on an advisory (non-binding) basis, the compensation that certain executive officers of Partners may receive in connection with the mergers pursuant to existing agreements or arrangements with Partners. For Against Abstain 3. Proposal to adjourn the special meeting, if necessary or appropriate, to solicit additional proxies in favor of the merger proposal. 4. In their discretion, the proxy agents are authorized to transact such other business as may properly come before the special meeting or any adjournments or postponements thereof. B Authorized Signatures — This section must be completed for your vote to be counted. — Date and Sign Below Important: Please date and sign your name as addressed, and return this proxy in the enclosed envelope. When signing as executor, administrator, trustee, guardian, etc., please give full title as such. If the stockholder is a corporation, the proxy should be signed in the full corporate name by a duly authorized officer whose title is stated. Date (mm/dd/yyyy) — Please print date below. Signature 1 — Please keep signature within the box. Signature 2 — Please keep signature within the box. 1 U P X 5 2 7 2 6 5

The 2022 Special Meeting of Stockholders of Partners Bancorp will be held online by webcast on Wednesday, March 9, 2022 at 10:00 a.m. Eastern time, at meetnow.global/MJ794ML. To attend the virtual meeting as a stockholder and vote during the meeting, you must have a voter control number (i.e., the information that is printed in the shaded bar located on the reverse side of this form or provided to you by Computershare). Important notice regarding the Internet availability of proxy materials for the Special Meeting of Stockholders to be held on March 9, 2022: The material is available at: www.envisionreports.com/PTRS Small steps make an impact. Help the environment by consenting to receive electronic delivery, sign up at www.envisionreports.com/PTRS IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. REVOCABLE PROXY — PARTNERS BANCORP Special Meeting of Stockholders – March 9, 2022 This Proxy is solicited on behalf of the Board of Directors The stockholder whose signature appears on the other side of this proxy card hereby makes, constitutes and appoints Brooke L. Dickerson and Carolyn Johnson, and each of them (with the power of substitution), proxies for the stockholder to represent and to vote, as designated herein, all shares of common stock of Partners Bancorp (“Partners”) which the stockholder would be entitled to vote if present at Partners’ Special Meeting of Stockholders to be held on March 9, 2022 and at any adjournment or postponement of the meeting. This proxy, when properly executed, will be voted in the manner directed herein by the stockholder. If no direction is made, this proxy will be voted FOR Proposal 1 to approve the Agreement and Plan of Merger, dated as of November 4, 2021, by and among OceanFirst Financial Corp. (“OceanFirst”), Coastal Merger Sub Corp. (“merger sub”) and Partners, and the transactions contemplated by that agreement, pursuant to which merger sub will merge with and into Partners, as more fully described in the proxy statement/prospectus, FOR Proposal 2 to approve, on an advisory (non-binding) basis, the compensation that certain executive officers of Partners may receive in connection with the mergers pursuant to existing agreements or arrangements with Partners and FOR Proposal 3 to adjourn the special meeting, if necessary or appropriate, to solicit additional proxies in favor of the merger proposal. This proxy will be voted at the discretion of the proxy holder(s) upon any other matter which may properly come before the meeting or any adjournment or postponement of the meeting. C Non-Voting Items Change of Address — Please print new address below. Comments — Please print your comments below.