About us
About us
Founded in the bustling heart of New York City in 2009, Presto-Changeo emerged as a boutique ecommerce agency committed to crafting exceptional, high-performance modules and apps to enhance ecommerce experiences globally. Together with our full-service design and development partner, EIP Concepts CA, Inc., we've cultivated a rich tapestry of expertise in all facets of ecommerce. Now based in California, we pride ourselves on our long-standing history, global reach, and trust that we've fostered with our clients over the years. Entrust us with your ecommerce needs, and we'll transform them into solutions that drive productivity, enrich features, and elevate your online shop to new heights.
What we do
PrestaShop was where our journey began, developing dynamic modules, crafting bespoke websites, and actively supporting the PrestaShop community in its forums. Our founder and lead developer, Tomer (tomerg3), not only moderated these forums but also contributed to the technical review of "PrestaShop 1.3 Beginner's Guide" by Packt Publishing.
After a transformative 12 years committed to PrestaShop, we have pivoted towards SaaS (Software as a Service) with the Wix platform. This transition allows us to simplify app usage, streamline installations, facilitate updates, and provide tools to enhance your Wix site, enabling seamless third-party service integrations and leveraging proven methods to boost sales.
Our expert design and development team, operating under the EIP Concepts CA, Inc. banner, is adept at crafting tailored solutions to cater to your specific ecommerce needs. From creating distinct B2B sites to hyper-local shops with precision targeting, we've done it all.
Our philosophy is simple: to build a company we ourselves would love to collaborate with. We strive not only to meet your expectations but to consistently exceed them, with exceptional customer support, stunning user experiences, and top-tier quality work.
What sets us apart? Our unrivaled, top-quality apps and a US-based customer service team that goes above and beyond to ensure your satisfaction. Trust us with your ecommerce journey, and we'll turn it into an exceptional success story.
Highest quality apps & US based customer service set us apart!
Meet our team

Tomer Grassiani
Founder, Tomer's background was in Machine Translation / AI with 10 years at Meaningful Machines, before transitioning to E-commerce and starting PoCo. He's an avid rock climber and a pool shark.
Suren Mikaelyan
Head of Development, Suren studied physics for 6 years but found his passion in web development. PoCo can’t “get rid of him” for more than 8 years. He enjoys hiking but sometimes can’t find the road back.
Vahe Babayan
Senior Developer, Vahe thought he would be a microchip engineer, but soon he fell in love with web development. He started to work for PoCo ages ago and thinks it's only the beginning. Vahe’s biggest dream is to learn to play a piano but he’s just too lazy for that.
Asya Vardanyan
Junior Developer, Asya recently got her degree in computer science and now building her career at PoCo. She has a lot of fun with drawing and addicted to movies..
See what others have to say
about us on the Wix Marketplace.

“Great app and support. We had to disable the script to stop the reviews showing on our website (which is a button and easy). We're happy and everything is working well.”
— Tane48

“We are using the integration for campaigns & flows. All is working well, issues are quickly addressed and fixed. Thanks Tomer for all the help!”
— Joachim167

“Tomer was wonderful when helping me connect my wix form to Klaviyo. The process is very simple however, I had missed a step and they were more than happy to guide me through it.”
— Nicola518

“Before i start, I want you to know that this is an honest review. No bull crap. When I first downloaded the app to my store, I didn't realise I could not import Australian specific reviews for my Australian store. However, there were other countries available. I contacted the STAMPED support team and they added Australia there for me and even more amazing, they did all the same day. OMGGG!! They literally made my night. Highly recommended. ”
— Buddyfavourites

“Really impressed with the integration and with the customer service. It just works. Tomer and the team are excellent. Always willing to help.”
— Story1961

“so far so good!!!!”
— desbraids

“Before this app I was having trouble placing embedded Klaviyo forms in the footer of my Wix site. Not only did this app have the answer to my issues, but the team a PoCo walked me through installing it and making sure my forms work! Highly recommended.”
— Mic1188

“I am truly impressed by such developers. I am already using this app since few days and i am truly amazed. Nice feature, nice design, fits perfectly design of my site and the most important is doing what it suppose to do. Very easy to integrate. Basically you wait for 5-10 minutes, then all reading shows up as per your set up. It is already the third app i am using from Presto-Changeo. Great job indeed, and excellent support if need it, whenever need it. Without any doubts 5 stars++++.”
— Atelieruldepictura
100% Satisfaction Guaranteed!
We stand by all our apps as well as our customer support, and we're committed to making sure that each of our apps work correctly for every customer. If for any reason you are unhappy with an app, if you misunderstood what it does, or simply have a case of buyer's remorse, contact us and we'll gladly issue a refund.