Top 64 E-Commerce Search Software SaaS Companies in May 2026

Los Altos, California, United States

Fast Simon brings integrated AI conversion optimization to automate manual work and replace expensive, complicated, long implementations by point vendors. Designed from the ground up for automation & self-service, Fast Simon delivers AI-Search, Collection filters, Merchandising, Personalization, Similar Styles, and Complete-the-Look to increase merchants’ conversion rate and AOV. Our integrated platform not only replaces point solutions, but also delivers a superior experience due to the number of data streams fed into its AI engine. Fast Simon uses shopper behavior signals, store signals, and merchant policies to deliver personalized search, collections, upsell, cross-sell, ad-platforms, data feeds, and campaigns. Fast Simon, Inc. is an independent US corporation based in Silicon Valley, California.

Budapest, Unknown, Hungary

www.prefixbox.com Prefixbox is a leading AI-powered product search and discovery solution for E-commerce retailers. Prefixbox's powerful product discovery suite of AI Search, AI Agents, and Product Recommendation help retailers increase conversion rate by 45% without manual optimization. Their robust product discovery solution is used by leading retailers like Carrefour, Leroy Merlin, and Bauhaus. Prefixbox AI Search is now natively available in the Shopify app store and is the first of its kind to earn the 'Built for Shopify' badge. For more information visit: www.prefixbox.com

Belgrade, Serbia, Serbia

Things Solver - member of ASEE is an AI and Engineering company located in Belgrade, Serbia. We are operating worldwide in efforts to find the most valuable approaches and solutions for handling data. We are made of agile and competitive teams, that believe that we have to be flexible and smart to efficiently answer to all of the challenges. We have a strong technical and industry expertise, that we utilize on our projects. We are working with cutting-edge technologies and approaches and are highly committed to open-source solutions and sharing of knowledge.

Eynsham, Oxfordshire, United Kingdom

Red Technology is a leading ecommerce solutions provider, combining ecommerce agency services and authoring a sophisticated ecommerce platform. We design and build responsive, multichannel B2B, DTC & Retail ecommerce solutions for mid-to-large sized retailers, manufacturers, wholesalers and distributors leveraging our ecommerce platform, tradeit. The tradeit ecommerce platform provides our customers with tremendous competitive advantage due to its combination of powerful promotions engine, flexible content management system, comprehensive order management system and omni-channel integration capabilities. Customers include: Healthspan, Pets Corner, F.Hinds, Calendar Club, Canagan, Westcoast, Capital Hair & Beauty, Tropicana Wholesale, Amoena, McAdams, Sass & Belle, Longacres, Alan Howard, and Silmid. Follow us for the latest news and updates on Red Technology, tradeit and UK ecommerce.

Belgrade, Belgrade, Serbia

Syncit Group is a successful European IT company specialized in end-to-end eCommerce development. Our goal is to deliver maximum business value to customers by creating, developing, and maintaining high-quality software solutions to meet their specific needs. This customer-first approach makes us fully committed to mutual satisfaction, benefits, and trust. The key point of our success is the fact that we are a small, adaptable, highly efficient, and skilled team of technology and business experts. Let us help you with #WebDevelopment, #AppDevelopment, #Magento, #SoftwareEngineering, #eCommerce, #SearchEngineOptimization, and much more!

San Francisco, California, United States

Open-source Retool for enterprise

Denmark

Relewise is an AI-powered platform that builds personalization into your ecommerce strategy by delivering unique digital user experiences across B2C and B2B. Our single-index architecture lets Relewise process behavioral signals and contextual data to generate AI-driven insights at scale, delivering intelligent search results and recommendations in milliseconds. Through a consumption-based model, Relewise adapts to your business needs, paying only for the personalized experience your users expect. We keep it real—no hot air, just straight talk and a determination to build something better. Personalize. Connect. Relewise. Book a demo to see it in action: https://www.relewise.com/book-a-demo

Melbourne, Victoria, Australia

Welcome to Okkular, where innovation meets fashion ecommerce excellence. We specialize in harnessing the power of Generative AI to empower merchandisers and ecommerce teams with cutting-edge tools for creating compelling content effortlessly. We envision a future where every product page is enriched instantly with engaging customer centric narratives thereby enabling accelerated growth and enhanced revenue generation. Join us in shaping the future of online fashion retail through advanced technology and unparalleled creativity. Discover how we can elevate your brand's online presence and customer engagement today.

San Francisco, California, United States

RichRelevance (now Algonomy) is the global leader in Experience Personalization, driving digital growth and brand loyalty for 200 of the world's largest B2C and B2B brands and retailers including REI, Burberry, CDW, ShopDirect, ATEA, Komplett, Coop.SE and more. The company leverages advanced AI technologies to bridge the experience gap between marketing and commerce to help digital marketing leaders stage memorable experiences that speak to individuals – at scale, in real-time, and across the customer lifecycle. Headquartered in San Francisco, RichRelevance serves clients in 44 countries from 9 offices around the globe.

San Francisco, California, United States

Searchanise is a leading provider of smart search, filter, and marketing solutions for platform-based and custom e-commerce stores. Our flagship product, the Searchanise Search & Filter app, has been boosting sales, enhancing user experience, and increasing conversion rates for online retailers since 2013. In 2022, we introduced the Searchanise Upsell & Marketing app. The tools inside are designed around the customer journey to help you engage, sign up, convert, upsell, and drive repeat sales from your customers. Use this all-in-one app to increase your conversion rate, boost your average order value, and drive more sales. Our newest addition, the Visitor Counter, launched in autumn 2024, uses real-time visitor counts on product pages to leverage social proof and further increase sales by creating a sense of urgency. With a community of over 16,000 e-stores worldwide, including renowned brands like Durex, Fossil, CBS, MediaMarkt, Lonely Planet, Sennheiser, and Decathlon, our apps are trusted across top e-commerce platforms like Shopify, BigCommerce, WooCommerce, CS-Cart, Magento, and Wix. Generating over $500 million in monthly sales for our users and earning 1,100+ five-star reviews on the Shopify App Store, Searchanise is celebrated for its easy installation, rich customization, and outstanding customer support. Visit our website and start a free trial today to see how Searchanise can elevate your e-store’s performance.