The Charles Stiles Standard
Industry Leader, Entrepreneur, Advocate for Exceptional Customer Experiences & Coffee Lover
For decades, Charles Stiles has built his career on uncovering hidden shortcuts and demanding real quality. As the host of Mystery Diners and a respected leader in customer experience, Charles saw what most people never notice — the places where quality is sacrificed for convenience, profit, or speed.
That insight changed how he sees all food and beverage — especially coffee. Great coffee isn’t an accident. It’s the result of intention, standards, and transparency. That realization led to one decision: If something carries his name, it must meet a higher standard.
Charles Stiles Coffee was born out of that standard.
We don’t settle for what’s easy. We source responsibly. We roast in small batches only after you order. We use 100% organic, specialty-grade Arabica beans — never chemicals, fillers, or shortcuts.
What separates exceptional coffee from ordinary isn’t just flavor — it’s integrity. Our roasts are bold, smooth, and layered with complexity — crafted to enhance every morning, every cup, every ritual. From farm to roast to your door, you’ll taste the difference that happens when someone with a lifetime of quality standards sits in the driver’s seat.
This isn’t coffee made by chance.
It’s coffee done right.
Early On
Experiences
Charles Stiles began his entrepreneurial journey by owning, managing, and expanding a series of retail gourmet food and gift stores known for delivering world-class customer service.
in
1996
This early success laid the foundation for the launch of one of the most respected and comprehensive mystery shopping and business evaluation companies, operating across North America, South America, Europe, and Southeast Asia since 1996.
an eye for
Excellence
Fueled by a deep commitment to excellence, Charles has cultivated long-standing partnerships with some of the world’s most iconic and widely recognized brands. His dedication to customer service excellence
has played a pivotal role in shaping the customer experience landscape.
Food Network’s
Mystery Diners Host
Charles has helped spotlight the crucial role customer service plays in a business's success. His visibility on national television, along with his frequent keynote appearances, have made him a trusted voice in customer service and organizational culture development.
since
2001
Charles has been a proud member of the Mystery Shopper Professionals Association (MSPA) since 2001. Over the past 12+ years, he has actively served on the board of directors, including roles as President of MSPA Americas and President of MSPA Global. His volunteer leadership and committee work have significantly contributed to advancing the mystery shopping industry worldwide.
Charles Stiles Coffee
Founded In 2025
In 2025, inspired by his global travels and a deep appreciation for exceptional coffee, Charles founded Charles Stiles Coffee - a premium line of 100% organic, farm-to-table coffee blends. This brand is a reflection of his passion for quality and his experiences sampling coffees and visiting cafes during his time as the host of Mystery Diners.
Charles Stiles Standard Extends Beyond Coffee
For decades, Charles has helped businesses raise their standards — long before launching his coffee brand. His work across industries is built on the same principle:
No shortcuts. Real accountability. Better experiences.
Become a Mystery Shopper
Interested in evaluating real-world customer experiences?
Through iSecretShop, individuals can apply to become mystery shoppers and help businesses improve service standards nationwide.
Improve Your Guest Experience
Businesses looking to elevate customer satisfaction and operational performance
can work with Business Evaluation Services.
From service audits to actionable insights, the focus is simple — measurable improvement.