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Websites
Sites that clarify your offer and convert visitors into conversations.
We craft high-converting websites, ecommerce experiences, SaaS products, and AI solutions for startups and growing businesses across the USA and Europe.
Atlas
Premium marketing website
Quiet design for ambitious brands.
A marketing site with clarity, pace, and a clear path to convert.
Trusted by founders at
Selected teams across healthcare, commerce, and product.












Services
We design and build digital products that help your business grow.
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Sites that clarify your offer and convert visitors into conversations.
Storefronts built to sell—fast, clear, and ready to scale.
Product
Product interfaces teams understand on the first session.
Native-feeling apps with calm UX and reliable delivery.
Intelligence
Practical AI that removes busywork—not another novelty demo.
Technical foundations so the right buyers can find you.
Technical · On-page · Performance
Tools shaped around how your business actually works.
Our work
A few recent directions across websites, commerce, and product.

Website
A clinically proven online weight-loss program platform designed to turn research-led guidance into a step-by-step experience that keeps long-term adherence high.

Ecommerce
A custom-gaming-PC Shopify storefront built to support configuration-led shopping, fast delivery, and measurable acquisition across a high-consideration catalog.

Website
A logistics website and custom shipping platform that separates package forwarding from courier booking without losing trust or clarity.
Process
Four clear stages. No theatre—just disciplined delivery.
We clarify goals, audience, and constraints so the work starts with intent—not assumptions.
Structure, interface, and brand expression come together into a clear, premium direction.
We engineer for performance, accessibility, and maintainability from the first commit.
Ship with confidence, then refine with real feedback so the product keeps improving.
Tech stack
We pick tools for clarity, performance, and longevity—not novelty.
Explore all technologies →Clients
Real feedback from clients who shipped with Tretanz. Hover a row to pause and read.
“Tretanz executed an absolutely pixel perfect build of a fairly complicated design in WordPress. They were always online to help me (bearing in mind time difference) and put up with my VERY fussy reviews, constant questions and requests for changes. I would have no hesitation using them again—in fact I plan to soon. 10/10”
Leigh R.
“I was amazed by the service offered, and I am glad this was recommended by the freelancer team. At Tretanz I felt listened, I felt understood and I was in a safe environment where my rhythm and communication style were fully respected. Even in the face of a significant time zone difference, I was able to communicate efficiently and accurately. I am very happy with the one page website I commissioned to them.”
Alessio P.
“Tretanz were fantastic throughout this journey. His ability to articulate the business need into a tech product is remarkable. He is always very good with his communication and very easy to work with. There was never a dull moment while working with him and he also brought in ideas. I would highly recommend Sagar and Tretanz for building a product ground up.”
Unni K.
“Tretanz Infotech truly excels in professionalism, responsiveness, and delivering exceptional results! Collaborating with them has been instrumental in turning my dream startup into reality. Throughout the project, they provided unwavering support, being present at every crucial stage. Without a doubt, I plan to continue working with them in the future and recommend their services to others.”
Ali Houssein R.
“Tretanz executed an absolutely pixel perfect build of a fairly complicated design in WordPress. They were always online to help me (bearing in mind time difference) and put up with my VERY fussy reviews, constant questions and requests for changes. I would have no hesitation using them again—in fact I plan to soon. 10/10”
Leigh R.
“I was amazed by the service offered, and I am glad this was recommended by the freelancer team. At Tretanz I felt listened, I felt understood and I was in a safe environment where my rhythm and communication style were fully respected. Even in the face of a significant time zone difference, I was able to communicate efficiently and accurately. I am very happy with the one page website I commissioned to them.”
Alessio P.
“Tretanz were fantastic throughout this journey. His ability to articulate the business need into a tech product is remarkable. He is always very good with his communication and very easy to work with. There was never a dull moment while working with him and he also brought in ideas. I would highly recommend Sagar and Tretanz for building a product ground up.”
Unni K.
“Tretanz Infotech truly excels in professionalism, responsiveness, and delivering exceptional results! Collaborating with them has been instrumental in turning my dream startup into reality. Throughout the project, they provided unwavering support, being present at every crucial stage. Without a doubt, I plan to continue working with them in the future and recommend their services to others.”
Ali Houssein R.
“This was a complicated project. A seemingly simple website, but with some very specific functionality, which made it a challenging task, with lots of edits to get it right. But Tretanz worked without complaint to get this site how I wanted it and I'll be back to them later to make additions and for other projects. Highly recommended, and for a good price too.”
Matthew T.
“I was very impressed by Tretanz professionalism, creativity and efficiency. They delivered the project on time and within budget, and they were always responsive to my feedback and requests. The site looks amazing and functions flawlessly. I would highly recommend them to anyone looking for a high-quality WordPress website developer.”
Seth C.
“I got Tretanz to design a website and organise the hosting and going live. He was excellent to work with, always answered my questions and made all the changes I asked for super fast. I'm so happy with the end product—my website looks amazing. I would not hesitate using him again.”
Geraldine S.
“I am very impressed with these guys! They know what they are doing and are very flexible to the demands of the clients. I had them design a logo for my company and they ran with so many creative ideas. I just had the sketch and rough ideas but they transformed it into something beautiful. Thank you to Sagar—great job and excellent communication!”
Ebenezer H.
“This was a complicated project. A seemingly simple website, but with some very specific functionality, which made it a challenging task, with lots of edits to get it right. But Tretanz worked without complaint to get this site how I wanted it and I'll be back to them later to make additions and for other projects. Highly recommended, and for a good price too.”
Matthew T.
“I was very impressed by Tretanz professionalism, creativity and efficiency. They delivered the project on time and within budget, and they were always responsive to my feedback and requests. The site looks amazing and functions flawlessly. I would highly recommend them to anyone looking for a high-quality WordPress website developer.”
Seth C.
“I got Tretanz to design a website and organise the hosting and going live. He was excellent to work with, always answered my questions and made all the changes I asked for super fast. I'm so happy with the end product—my website looks amazing. I would not hesitate using him again.”
Geraldine S.
“I am very impressed with these guys! They know what they are doing and are very flexible to the demands of the clients. I had them design a logo for my company and they ran with so many creative ideas. I just had the sketch and rough ideas but they transformed it into something beautiful. Thank you to Sagar—great job and excellent communication!”
Ebenezer H.
Reviews scroll automatically. Hover a row to pause and read.
FAQ
Straight answers for founders and operators evaluating a partner.
Get in touch
Share the problem you’re solving. We’ll reply with a clear point of view—and an honest read on fit.