Niall Horan teamed up with Tourism Ireland in December 2022 to create a promotional video highlighting top attractions in Ireland. Alongside Lewis Capaldi, the video showcases their favorite moments and experiences, encouraging viewers to visit the island. It includes footage from their documentary 'Niall Horan’s Homecoming: The Road to Mullingar'.

Niall Horan entered into a multi-year partnership with Callaway Golf in January 2023, focusing on engaging golfers worldwide and making the sport more accessible, particularly to younger players. This collaboration aims to celebrate their shared passion for golf and broaden its appeal through various content and initiatives.

Niall Horan became a brand ambassador and investor in WHOOP in September 2025. This partnership aligns with his commitment to promoting recovery, sleep, and overall well-being while collaborating on exclusive content and community initiatives.

Niall Horan became a shareholder and strategic partner of VENU in November 2025, contributing to the company's advisory council and shaping the future of live entertainment.