Hi, I’m Nicholas Rosseinsky, proprietor of Gray Rock Bookkeeping, here in sunny Encinitas, California. My passion is to provide businesses with reliable financial information that helps them to save time and make more money.

I’ve always been fascinated by the way numbers can help us understand reality. leading me to study mathematics and theoretical physics at Cambridge University. But when I realized that string theory wouldn’t help me understand the real world, I started a career in accounting, finance and economics.

After corporate gigs in London and Hong Kong, I moved to southern California in the early 2000s. Now via the miracle of cloud computing, I use my devotion to getting the numbers right, to help clients across the U.S. build their businesses on rock-solid financial data.