JPMorgan is making a fresh push to gain more work from private equity and infrastructure firms as the Wall Street bank makes a long-term bet on growth in a tough dealmaking market. 

The US bank is hiring dealmakers and expanding its coverage of the infrastructure sector, which it sees as a key driver of fee growth in the coming years, according to Guillermo Baygual, who co-heads its infrastructure and strategic investors group alongside New York-based Avery Whidden.