Thom was elected as Mayor in May 2017 and May 2021. He is on track as the first Seabrook Mayor to serve 8 consecutive years. He also previously served 16 years on Planning & Zoning Commission; the 2010 Comprehensive Master Plan Commission; and Seabrook EDC. 

Mayor Kolupski is committed to improving life quality, resident safety and economic diversity & tourism promotion. He has procured a $38 million grant for a new wastewater treatment facility; secured grants for flood mitigation projects; championed development projects to increase ad valorem tax revenue by millions; and lowered property tax rates for five years. He is the only Seabrook mayor to issue five Disaster Declarations (Harvey, Laura, Nicholas, Covid-19, Uri).

Thom owns an Architectural/Engineering Project Management firm, is experienced in multi-million dollar construction projects and has been a Seabrook resident for 22 years with his wife, Tamara, and children Colin (Texas State Trooper), Evan (Construction Manager) and Paige (Landscape Architect).