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About Us
A CPA firm built for long-term partnerships with businesses nationwide.
Schumacher Sama LLP has served businesses across the country since 1960. Our team focuses on long, trusted relationships — not transactional work.
A Note From the Partners
We took over a firm that's been quietly doing right by Wisconsin business owners since 1960 — and we don't take that lightly.
Our job, the way we see it, isn't to file your taxes once a year. It's to sit on your side of the table all year long, ask the questions no one else is asking, and help you make decisions based on what your numbers are actually telling us—not just a gut feeling.
If that sounds like the kind of CPA relationship you've been missing, pick up the phone. We'd genuinely like to meet you.
Ryan Schumacher, CPA
Partner
Mike Sama, CPA
Partner
Why Choose Us
Guided by experience. Proven by decades.
Hear directly from our partners on how we work with clients — from proactive tax planning to the long-term relationships that shape everything we do.
We're a Wauwatosa-based CPA firm serving small and mid-sized businesses nationwide, from local companies in Milwaukee and Southeast Wisconsin to independent insurance agencies across the country.
We're more than accountants. We're long-term financial partners focused on clarity, confidence, and proactive strategy — so you stay ahead of tax deadlines, surprises, and big decisions.
Our team includes Certified Public Accountants, QuickBooks ProAdvisors, and seasoned advisors who have spent their careers serving business owners from coast to coast.
What We Stand For
Calm, clear, and consistent — every quarter, every year.
Proactive, not reactive
We plan ahead of deadlines and decisions, not after them.
Clarity over jargon
Plain-English advice you can actually use to run your business.
Long-term partnership
Many of our client relationships span decades and generations.
5-STAR GOOGLE REVIEWS
Trusted by business owners and agency principals nationwide.
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"We have been clients of Schumacher Sama for 37 years. They are professional, great to work with, always doing their best for their clients. We highly recommend their firm for all your accounting needs!"
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"They answer all my questions without fail. They walk me through everything I need to help save me money. Their approach is methodical and calm and they find creative ways to deal with all my tax situations."
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"Whenever I have a question they are quick to answer and I can trust it's been done correct. Highly recommend everyone over at Schumacher Sama!"
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"Mike Sama is a great CPA with Schumacher Sama. He and I have partnered on a few things in the past and I trust him to 'do right' by my clients. I refer to him with confidence."
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"I have referred clients to Mike Sama and the Schumacher Sama team in the past and they are very happy with their service."
Meet the Team
The people behind every return, every reconciliation, every plan.
Hover any portrait to see what they do here, what they love about the work, and a fun fact.
Partners · 2 people
Ryan leads client engagements across the firm, with deep focus on proactive tax strategy for business owners and independent insurance agencies nationwide.
Favorite part of the job
Helping small businesses achieve their goals.
Fun fact
I brew beer.
Ryan Schumacher, CPA
Partner · Since 1999
Mike partners with owners on long-range planning, succession, and the financial decisions that shape the next chapter of their business.
Favorite part of the job
Working with our clients and staff to achieve results.
Fun fact
Despite being an accountant, I enjoy thinking outside the box.
Michael Sama, CPA, CMA
Partner · Since 2008
Tax · 5 people
Bob has served Schumacher Sama clients since 1992, bringing decades of hands-on tax and accounting experience to closely held businesses.
Favorite part of the job
Every day is different with all of the different aspects the job entails.
Fun fact
I enjoy playing softball.
Bob Drought
Senior Accountant · Since 1992
Amanda is an IRS-Enrolled Agent supporting individual and business tax clients with year-round planning and compliance.
Favorite part of the job
My favorite part of my job is being able to learn new things every day. Every client is unique!
Fun fact
I love adventuring and trying new things.
Amanda Phanthourath, EA
Accountant · Since 2022
Eric is an IRS-Enrolled Agent and tax manager focused on individual and business tax preparation, planning, and representation.
Favorite part of the job
Assisting clients with their unique situations.
Fun fact
In my free time I enjoy playing volleyball.
Eric Grosskreutz, EA
Tax Manager · Since 2023
Shari leads tax engagements for business and individual clients, focusing on year-round planning and strategy rather than one-time compliance.
Favorite part of the job
Helping clients plan and execute tax strategies.
Fun fact
I love to travel and want to fill the pages of my passport with stamps from around the world!
Shari Schmidt
Tax Manager · Since 2026
Katie supports business clients with monthly accounting, tax preparation, and day-to-day advisory across a wide range of industries.
Favorite part of the job
Working with a variety of clients and learning new skills.
Fun fact
I collect antique cameras and love to bake.
Katie Wonnacott
Senior Accountant · Since 2025
Accounting · 3 people
Ashley supervises the accounting services team, keeping monthly financials, reporting, and client work moving cleanly through the firm.
Favorite part of the job
The collaborative environment that makes me feel like part of a team. The shared goals and genuinity of our office for helping clients is a rewarding experience.
Fun fact
I'm an avid crafter and comic book collector.
Ashley Faulhaber, CPA
Accounting Supervisor · Since 2020
Judy has managed payroll for our small business clients since 1974, keeping filings accurate, on time, and headache-free.
Favorite part of the job
Working with clients and staff to help them through the complexities of payroll and deductions.
Fun fact
I enjoy old movies and opera music.
Judy Shabman
Payroll Manager · Since 1974
Marilyn supports closely held companies with day-to-day accounting and financial reporting across a broad range of industries.
Favorite part of the job
Learning the uniqueness of my clients' businesses.
Fun fact
I enjoy listening to bands perform at summer festivals.
Marilyn Gest
Accountant · Since 2019
Administration · 3 people
Renee coordinates the client experience end-to-end, making sure every touchpoint with the firm is warm, organized, and on time.
Favorite part of the job
Working with all of the people (both colleagues and clients)!
Fun fact
I'm a professional singer.
Renee Krause
Client Excellence Coordinator · Since 2020
Stephanie focuses on client experience and process — turning the way work moves through the firm into something clients feel every step of the way.
Favorite part of the job
I thrive on streamlining processes to create seamless, efficient systems that enhance the client experience at every step.
Fun fact
I've run multiple half-marathons, self-published a book, and own a coaching business!
Stephanie Nichols
Client Excellence Coordinator · Since 2025
Shelley keeps the office running behind the scenes so partners, staff, and clients can stay focused on the work that matters.
Favorite part of the job
I enjoy working with our staff and clients. Every day there is something new to be learned.
Fun fact
I love being outdoors in the summer, preferably doing activities on a lake.
Shelley Massman
Admin · Since 2020
About Schumacher Sama — frequently asked
How long has Schumacher Sama been in business?
The firm has served business owners since 1960 — more than six decades of continuous practice, now based in Wauwatosa, Wisconsin and serving clients nationwide.Where is your office located?
We're at 10400 W. Innovation Dr., Suite 301, Wauwatosa, WI 53226, just off Innovation Drive in the Milwaukee Regional Medical Center area. Parking is free and on-site.Are your accountants licensed CPAs?
Yes. Our team includes licensed Certified Public Accountants, along with certified QuickBooks ProAdvisors and experienced accounting professionals.What makes you different from a national tax chain?
You work with the same CPA year after year — someone who knows your business, your industry, and your goals. That continuity is why many of our client relationships span decades and even generations.Do you work with clients outside Wisconsin?
Yes. We serve small and mid-sized businesses and independent insurance agencies across the United States. Secure portals, video calls, and multi-state filing experience mean location isn't a barrier.Do you serve individuals as well as businesses?
Yes. We prepare individual returns, particularly for business owners and their families, where personal and business tax planning need to work together.
Ready for a clearer financial future?
Schedule a free consultation. We'll review your goals and show you what a proactive partnership looks like.
