Tax Terrapin - AI Tax Advisor in the UK
Stripe Atlas Taxes - Help file your business taxes
Avail Tax - A tax advisor built by builders for builders, so you don't have to deal with IRS bullshit.
Taxfyle - Stop doing your taxes, leave it to the professionals.
Bonsai - One platform to streamline your entire business
neo.tax - automated R&D tax credits for startups = extra month of burn