Built by senior operators, not generalists.
You're here because you're trying to ship something — a product, a brand, more customers — and you want it done by people who can actually do it. Below is who we are.
Celeri Studio has been building and growing software for startups and small businesses since 2018. We pair shipping engineers with growth operators under one roof — so you don't have to coordinate a dev shop, a marketing agency, and a freelance designer who don't talk to each other.
On the build side, we ship across the stack: native iOS and Android apps, macOS and Windows desktop, web on whatever framework fits, AWS architecture for teams that need to scale, AI agents for teams that need to move faster, plus the consulting work that informs those choices in the first place.
On the growth side: brand and visual identity, landing pages, SEO and GEO (generative engine optimization), keyword research, A/B testing, paid ads, and the new craft of prompt marketing.
We're based in Toronto, work bilingually in English and 中文, and serve startups and small businesses across North America and beyond. Real receipts on the work page — not stock case studies.
WHY CELERI
Three things you don't get from a generalist agency.
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01
Engineering + growth under one roof
Most marketing shops can't ship a production app. Most dev shops can't write an ad that converts. You hire one team, one accountable owner — nobody points fingers when something breaks.
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02
Real receipts, not stock case studies
Every number on the work page is from a business we've built and grown end-to-end. You see real receipts — not stock case studies, not other people's wins.
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03
Senior operators ship the work
Most agencies sell with a senior, then deliver with juniors and account managers. We don't have either layer. The same people who scoped your project are the ones shipping it — and on the phone when something breaks.
We work in regulated environments.
We're familiar with Canadian privacy and email rules (PIPEDA, CASL), platform restrictions in cannabis, wellness, and licensed-trade verticals, and the compliance work that comes with fintech, healthtech, and B2B SaaS in regulated markets. We won't ship anything that gets your account flagged or your data leaked.
Tools we ship with
What we ship with day to day. We swap tools when better ones show up.
- Astro
- Next.js
- React
- Tailwind CSS
- TypeScript
- Python
- Node.js
- Swift
- Kotlin
- Electron
- AWS
- Vercel
- Cloudflare
- Docker
- Postgres
- Stripe
- Square
- Looker Studio
- Plausible
- Figma
Where we work
Tell us what you're building.
First call is free. Reply within 24h. 中英文皆可.