The largest US accounting firms are leaning on their crypto advisory shops as financial institutions and other clients grapple with the maturing regulatory and commercial landscape of digital assets.

Deloitte, PwC, EY, and KPMG — known as the Big Four — say their client bases are expanding with crypto natives and traditional financial institutions intent on learning how to navigate the emerging regulations and evolving accounting rules surrounding the industry.

“The pace of change in this space is different than anything else I’ve seen,” said Matthew Hatch, the fintech and financial services digital assets leader for EY …