About Us

Focused On Your Success

Founded in 1986, SST has established a national reputation for professional excellence and the highest ethical standards.

SST Accountants about page image
SST Logo mark
SST Accountants about page hero image

The Unique SST Difference

SST is more than just another accounting firm. Since its establishment, SST has set itself apart with a reputation for tailored service, professional excellence, specialized expertise and client relationships built on trust. SST’s other distinguishing factors include:

Each SST client receives a dedicated account team, allowing for a seamless client-firm relationship. All services are client-centered and prioritize your unique needs, including short- and long-term adjustments for success.

We believe that relationships are our greatest capital. At SST, we take an honest approach to our work. We value transparency, and by fostering trust and open communication, we create a solid foundation for success.

SST prioritizes integrity, honesty and service to others before self. Doing so fosters a strong sense of community in which both clients and employees feel valued.

SST helps clients find success throughout the natural ebbs and flows of the business cycle, offering a holistic suite of accounting and consulting services that complement all aspects of financial planning.

SST guiding principles image

Guiding Principles

SST is driven by a mission to create success by serving others through trusted partnerships. We’re focused on your success and are guided by the following core values daily.

  • Service to others before self
  • Teamwork and relationships
  • Integrity and honesty
  • Continuous improvement
  • Long-term perspective

Volunteer Involvement

Our commitment to serve goes beyond the office. At SST, community service is supported and encouraged. Our team members sit on the boards of various nonprofit organizations and participate both individually and as a group in a wide range of service opportunities.

SST is proud of our involvement with the following organizations:

6 Stones logo
AFSP logo
Child & Family logo
Community Partners of Dallas logo
Feed my Starving Children logo
HHM logo
KC Shepherd's Center logo
Minnie's Food Pantry logo
New Friends New Life logo
Tango Charities logo
The Church Network logo
Vogel logo
Young Men's Service League logo
6 Stones logo
AFSP logo
Child & Family logo
Community Partners of Dallas logo
Feed my Starving Children logo
HHM logo
KC Shepherd's Center logo
Minnie's Food Pantry logo
New Friends New Life logo
Tango Charities logo
The Church Network logo
Vogel logo
Young Men's Service League logo
Graphic showing a global map using dots for landmasses

Global Reach

SST offers global perspective through Integra International® (Integra), an association comprised of more than 100 independent accounting, tax, audit and consulting firms dedicated to advising businesses around the world and delivering specialized best practices. With Integra, SST’s clients gain access to global capabilities, receiving seamless service no matter where in the world business takes them.

Our Leadership

SST’s unparalleled service reflects a leadership team that’s dedicated to the success of both our clients and team members. Get to know our partners below.

William H. Sims, CPA Headshot

William H. Sims, CPA

Audit & Attestation

CEO, Partner

View William H. Sims, CPA Profile
Eileen Keller, CPA Headshot

Eileen Keller, CPA

Audit & Attestation

Partner Emeritus

View Eileen Keller, CPA Profile
Emily M. Cook, CPA Headshot

Emily M. Cook, CPA

Client Accounting & Advisory Services

COO, Partner

View Emily M. Cook, CPA Profile
Ryan Schilhab, CPA Headshot

Ryan Schilhab, CPA

Tax

Partner

View Ryan Schilhab, CPA Profile
Chris Adams, CPA Headshot

Chris Adams, CPA

Audit & Attestation

Partner

View Chris Adams, CPA Profile
Christina Ramser, CPA Headshot

Christina Ramser, CPA

Tax

Partner

View Christina Ramser, CPA Profile

Latest Insights

Dirty Dozen 2026: Understanding the Most Common Tax Scams 

Each year the IRS releases its “Dirty Dozen” list to …

Read More

Understanding Deduction Changes Under the OBBBA: What to Expect for the 2026 Tax Season

The One Big Beautiful Bill Act (OBBBA) introduces some of …

Read More

Year-End Giving: What Donors & Organizations Need to Know 

As year-end giving accelerates, both donors and charitable organizations are …

Read More

When Is Per Diem Actually Tax-Free? Key Rules and Common Pitfalls 

Many companies use per diem stipends to cover employee travel …

Read More