Achievements
- Built expertise in R&D tax credits over 27 years at PwC and Grant Thornton
- Shaped regulatory policy and exam practices for R&D credits as Senior Partner at Grant Thornton
- Led the training and mentoring of numerous R&D credit specialists in top firms
- Represented clients in IRS and state audits, appeals, and mediation hearings
- Co-founded SPRX in 2021 to develop AI solutions for maximizing R&D tax credits
- Pioneered automation tools to simplify complex tax credit processes and help companies get their deserved incentives
The scoop on Mark Andrus
Aight, so peep Mark Andrus. This guy’s the real deal in the world of taxes and startups. So, he jumps into the scene back in ’94 at PricewaterhouseCoopers, right? Fresh outta college – he’s got a Master’s in Tax Accounting from BYU, super sharp. Dude spends years crushing it at PwC, then moves on to Grant Thornton in ’99, where he becomes a Senior Partner. Basically, he’s the guy shaping the rules around R&D tax credits, training up teams, and crushing IRS and state audits. No bullshit, he’s been the guy everyone calls when shit gets complicated with R&D credits.
But here’s where it gets interesting – after over 27 years deep in the tax game, Mark’s like, “Okay, I’ve seen enough. Let’s build something new.” So, in 2021, he jumps out, retires early, and co-founds SPRX. This ain’t some random startup – it’s his brainchild, using AI to automate and maximize R&D tax credits. Think about it, he took his lifetime of experience, saw a problem, and built a tech solution for it. That’s pure startup hustle right there.
And what’s crazy – Mark’s motivation? It’s all about making a real impact, streamlining something super complex, and helping companies get their deserved credits without the bullshit. Dude’s been the guy behind the scenes, but now he’s jumping into the spotlight to change the game with SPRX. His vision? Making tax credits smarter, faster, and more accessible.
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Talk to herSadly, Mark passed away in summer 2024, but his legacy? It’s still very much alive. His leadership and ideas continue to push SPRX forward, and honestly, the guy’s story is a perfect example of what it means to be a true innovator – someone who’s not afraid to jump into the deep end, build something meaningful, and leave a mark.
TL;DR – Mark Andrus is a legend in the tax world turned startup founder. He spent decades perfecting R&D credits, then used that knowledge to create AI-powered solutions. He’s all about making complex things simple and helping businesses crush their goals. No cap, this guy’s the real deal.

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