X0708 D LIVE 0002141390 Thayer Street Partners Opportunity Fund III, L.P. 228 PARK AVENUE SOUTH, PMB #27027 NEW YORK NY NEW YORK 10003 212-256-8740 DELAWARE None None Limited Partnership true 2026 N/A TSOF III GP, LLC 228 Park Avenue South, PMB #27027 New York NY NEW YORK 10003 Executive Officer General Partner of the Issuer N/A Thayer Street Partners Management, LLC 228 Park Avenue South, PMB #27027 New York NY NEW YORK 10003 Executive Officer Manager to the Issuer (the "Manager") Joshua S. Koplewicz 228 Park Avenue South, PMB #27027 New York NY NEW YORK 10003 Executive Officer Managing Partner of the General Partner of the Issuer; Managing Partner of the Manager Pooled Investment Fund Other Investment Fund false Decline to Disclose 06b 3C 3C.7 false true false true false 0 Keel Harbour Capital Limited None None None Avenida da Liberdade, No 245 3B Lisbon S1 PORTUGAL 1250-143 true STIFEL, NICOLAUS & CO., INC. 793 None None 677 Washington Boulevard Stamford CT CONNECTICUT 06901 All States false Crito Capital, Empresa de Investimento, S.A. 161724 None None Av. Ant?nio Augusto de Aguiar n.? 21 1st Floor Lisbon S1 PORTUGAL 1050-012 true 450000000 0 450000000 Includes amounts offered by Thayer Street Opportunity Partners Fund III-B, L.P. false 0 0 true 0 true 0 true Manager or designee will receive a management fee payable by the Issuer quarterly in advance equal to a percentage of either capital commitments or invested capital as specified in the Issuer's partnership agreement and management agreement with Manager. false Thayer Street Partners Opportunity Fund III, L.P. /s/ Joshua S. Koplewicz Joshua S. Koplewicz Managing Partner of the General Partner of the Issuer 2026-07-07