At 18, Devan Tiankee is redefining marketing with Daygency, a firm built on accountability, speed, and predictable results.
At just eighteen years old, most people are still deciding what to study, where to work, or what kind of life to build. For Devan Tiankee, the answer came earlier. While studying at the University of California, Irvine, where he earned straight A’s and a place on the Dean’s Honor Roll, Tiankee noticed something that would set the course for his career. Agencies were everywhere, but they were not delivering what business owners wanted most: predictability.
That realization became the foundation of Daygency, a marketing company designed to shift the focus from vanity metrics to measurable outcomes. Instead of promising impressions or reach, Tiankee built his company on a stronger promise: booked appointments within 30 days or a refund.
“Marketing should be the most predictable part of a business, not the scariest. That’s the standard I’m setting,” Tiankee explains.
Challenging the Industry Standard
The marketing industry is crowded with agencies competing for attention, but many leave business owners frustrated. Reports often highlight clicks and views without answering the only question that matters: is the marketing generating revenue? For local service providers in sectors such as HVAC, remodeling, cosmetic dentistry, and med-spas, where each client can mean thousands in lifetime value, clarity is essential.
“Most agencies were selling activities, ads, posts, and campaigns, but not actual outcomes,” Tiankee recalls. “We flipped the model on its head.”
This approach has made Daygency distinct. Rather than selling marketing as a gamble, Tiankee designed it as a system that provides consistency and confidence.
A Guarantee That Sets a New Standard
At the center of Daygency’s model is a guarantee that places accountability on the agency itself. If clients do not see booked appointments in the first 30 days, the company refunds their investment. This risk reversal shifts the burden away from business owners and ensures Daygency has to execute with precision.
“I do not care about vanity metrics,” Tiankee says. “If it does not put revenue on the table, it does not matter.”
For Tiankee, accountability is not just a sales strategy. It reflects his personal belief that success can be engineered. His company focuses on what moves the bottom line while rejecting the distractions of surface-level analytics.
Balancing Academic Excellence and Entrepreneurship
While many entrepreneurs pause formal education to focus on business, Tiankee has managed to do both. As a full-time student, he has learned to apply a disciplined, systems-first mindset that carries directly into his business operations. This approach drives Daygency’s model of building growth engines rather than selling isolated campaigns.
Daygency’s client framework includes lead generation funnels, automated nurturing sequences, ROI calculators, and appointment booking systems that connect marketing directly to revenue. Clients gain clarity and consistency instead of uncertainty and short-term fixes.
“Our clients do not want to gamble on marketing. They want something they can trust will work every single month,” Tiankee explains. “We have proven that predictability is possible, and it is changing how local businesses think about growth.”
What Makes Daygency Different
Several factors distinguish Daygency in a crowded marketplace. The company specializes in high-ticket local services, tailoring its strategies to industries with high client lifetime value. It introduces transparency by showing business owners the math behind profitability and launches systems with speed rather than long delays.
Unlike competitors who focus on reach or engagement, Daygency tracks only meaningful outcomes such as qualified leads, booked appointments, and revenue growth. The focus is not on activity but on accountability.
“Success is not optional. It is engineered,” Tiankee emphasizes, summing up the mindset that drives both his business and personal goals.
A Relentless Drive to Build
Behind the guarantees and systems lies Tiankee’s determination. Known for discipline, curiosity, and execution, he adapts quickly, takes risks that others avoid, and pushes through obstacles with persistence. His journey as an 18-year-old founder highlights the resilience needed to scale a business while excelling academically.
Colleagues and clients alike describe him as focused and unwilling to compromise on standards. That mindset has already set Daygency apart as a trusted partner for local businesses seeking more than promises.
Looking Forward
Daygency is continuing to expand, with a clear trajectory toward growth. The focus is not on flashy campaigns, but on building sustainable systems for local businesses who want real confidence in their marketing. For Tiankee, the mission is simple: to make marketing a predictable part of business operations rather than a source of uncertainty.
For service providers, the takeaway is clear. Marketing can be engineered to deliver consistent results. Daygency is proof of that shift.
To explore how Daygency builds predictable growth systems for local service providers, visit book.daygency.org. Follow the company’s journey on Instagram.
