"Strategy with Results. Creativity That Connects."
Where your ideas become growth.
Mystellar & Co. is a Toronto-based, women-founded creative performance studio bringing together strategy, creativity, and performance to help ambitious brands build visibility, generate demand, and grow without losing who they are.
One studio, two pillars: performance media and creative content.
Everything runs through one multiplatform ad strategy; content and ads working together to connect your brand with the right audience.
Paid Performance
Google Ads (lead expertise), Meta Ads, and AI-driven ad placements built around real lead volume, not vanity clicks.
Digital Marketing
We help e-commerce and brands find the right strategy to stand out in the market and connect with customers.
Creative & Creators
UGC content production and influencer sourcing — matching brands with creators, and creators with real brand partnerships.
What clients say
Reviews"For the past two years, Ms. Cuellar has supported our non-profit music festival with reliability and hard work. She listens carefully, follows through, and brings creativity and attention to detail to everything from program design to certificates. It's been a pleasure working with her!"
"Madai brought clarity to our marketing. She helped us understand what to prioritize, where to spend, and what was actually working."
"The best part was the combination of creative thinking and performance. We finally had a strategy behind our marketing."
Built by a Latina entrepreneur who's done the work herself.
Mystellar & Co. was founded by Madai Cuellar, a Mexican in Canada, entrepreneur based in Toronto. Her experience spans digital marketing, paid ads, creators, influencers, and business strategy.
We understand both sides of marketing: the numbers and the creative.
What's Moving in Paid Media & Creator Marketing.
A view about what's moving in the industry and how it could help brands achieve the impact they're looking for.
5 signs your business needs a marketing strategy reset
Not getting the results you want from your marketing? Here's how to tell why.
Marketing to the Latin community in Canada: what actually works
Beyond translation — building trust with a market that isn't one audience.
Living in an AI world: what's actually good (and bad) for brands
An honest look at what's helping brands — and what's hurting them.
Let's talk about your brand.
Book a free 15-minute consultation in English or Spanish. We'll look at your digital presence, talk through your goals, and help you identify the right next step for your business.