Sleipnir

Intelligent tax compliance.

Partner-reviewed. Frontier AI enabled. Data privacy guaranteed.

Services

  • Fund compliance — investment funds, general partners, management companies and executives
  • Business entities — compliance and planning
  • Business owners and individuals — compliance and planning

About

In the summer of 2026, a problem emerged for the tax business. Frontier AI model improvements began to outpace the ability of traditional tax service providers to adapt and adopt. Weekly breakthroughs among competing models began to produce tax compliance results more accurate than the best CPAs at faster rates than the leading CPA firms, and at considerably cheaper rates than any offshore labor could afford.

Many organizations tried their best to implement “AI tools” in their traditional bureaucratic manner, but failed to deeply extrapolate where the technology was headed as they tried to fold minor improvements into the existing organizational hierarchy. It became obvious to me that clients and the general public were paying the price as a result.

Sleipnir was created with the commitment to constantly solve this problem. We believe the rate of change will increase exponentially as super intelligence matures, and only lean organizations can achieve parity. Sleipnir exists because businesses and taxpayers deserve to capitalize on the benefits of tomorrow’s technology without paying yesterday’s legacy prices.

Brendan Ryan, CPA

Brendan Ryan, CPA, MST

Managing Partner

Previously Senior Tax Manager, Financial Services, at RSM US LLP (2016–2026), specializing in hedge fund, private equity, and fund-of-funds tax. Currently a tax subject-matter expert for AI training at SpaceX Super Intelligence (2026–present).

CPA licensed in New York and North Carolina. MS in Taxation, Baruch College.

Contact

[email protected]

Wilmington, NC