Executive Committee (ExCom) coordinates the Board's work and acts on urgent School matters, if necessary. It provides guidance to the Executive Director. The Committee also oversees staff negotiations, recommends Committee Chairs and develops the Executive Director’s employment contract. It is composed of the officers of the Board with the Chair of the Board serving as its Chair.

Academic Policy (APC) recommends ways to support academic excellence, including maintaining the school’s international character, defining academic goals, and addressing challenges. It updates the Board on progress, informs on academic policy trends, and reviews/recommends changes to existing academic policies.

Advancement (Adv) advises the Board on development of strategies related to fundraising goals. This also includes annual giving, capital and endowment campaigns, fundraising events, and alumni relations. The Committee identifies and cultivates prospects for donations. Additionally, it develops policies on gifts and naming opportunities, coordinates with the Executive Committee on outreach, and oversees the work of any ad hoc Capital Committee.

Buildings, Grounds, and Security (BG&S) oversees long-term planning for facilities and capital initiatives. Its responsibilities include reporting on major issues, monitoring maintenance best practices, liaising with other committees, recommending policies on safety and security, and supporting sustainability in construction and facility operations.

Finance and Audit (F&A) oversees financial planning, budgeting, and policies. Its responsibilities include guiding long-term financial plans, monitoring budget implementation, educating the Board on financial trends, and recommending fiscal policies. The Committee also oversees investments, works with auditors, reviews internal controls, and manages the bidding process through a sub-committee. Additionally, it develops policies related to student financial aid.

Health and Safety (H&S) is responsible for recommending policies to guide the School’s approach to the health and safety for students. The Committee works with the UNIS Administration to ensure the school community: a) Provides a safe and welcoming environment, including for students with health-related issues; b) Maintains an effective student support system focused on emotional/social resilience and global citizenship; c) Is adequately prepared for handling pandemics.

Strategic Planning (SPC) develops and monitors the School’s strategic plan, goals, and performance. It conducts yearly reviews, assesses progress, and periodically reviews the mission statement with input from the Board, administration, staff, parents, alumni, and students. The Committee includes trustees, relevant school administrators, and may include other experts with Trustee approval.

Trustees Committee (TC) is responsible for recruiting and orienting new trustees, recommending sitting trustees based on diversity and expertise, and proposing Board officers and committee chairs. It manages the annual self-evaluation process for the Board and trustees, identifies educational needs, and promotes communication about the Board's activities. The Committee also ensures regular reviews of Board policies and recommends necessary updates or changes for Board approval.