Trios

Istanbul, Istanbul, Turkey

Website design, e-commerce software, and SEO consultancy from İstanbul since 2002

Operating out of İstanbul since 2002, Trios works across the span from website design to web portal software development, taking on projects for brands as varied as Hot Wheels, Barbie, Sera Group, Planac Mimarlık, and the Yuvam Dünya Derneği nonprofit. The client list mixes global toy brands with regional architecture firms and civil society organizations, suggesting a practice built around custom builds rather than templated output.

Services cover website design, frontend and backend development, application development, and e-commerce software, paired with technical and content SEO consultancy. Trios also handles social media consultancy and management alongside digital brand, project, and content strategy work, positioning the studio to take a site from initial design through to the software and content that keep it running.

Recent and named work includes a micro website built for Hot Wheels and a micro site with contest software developed for Barbie's Dream Birthday campaign. Trios is currently renewing the website for the Tunnel Turkey 2026 Global Symposium and has agreed with Esersan to build a new site, alongside earlier development work for Sera Group and Planac Mimarlık's web presence.

24
YEARS IN BUSINESS
8
SERVICES

Capabilities

Services

What these services involve

Accessibility Remediation
Accessibility Remediation for web development buyers. Clear scope, measurable outcomes, and reliable delivery.
API and Systems Integration
API and Systems Integration for web development buyers. Clear scope, measurable outcomes, and reliable delivery.
Backend Development
Backend Development for web development buyers. Clear scope, measurable outcomes, and reliable delivery.
Frontend Development
Frontend Development for web development buyers. Clear scope, measurable outcomes, and reliable delivery.

Agency details

Founded
2002 (24 years)

About this agency on Agency List

Trios holds an Agency List Score of 73 out of 100.

That score is higher than 36% of the 36,919 agencies Agency List has assessed so far.

The Agency List Score measures how well an agency documents its work in public: named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than to the client.

It does not measure client satisfaction, price, or availability.

How the Agency List Score is measured

Assessment date

Agency List assessed Trios in September 2026, reading 2 pages published on trios.com.tr.

The score reflects what Trios had published by that date; anything published since has not been read.

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