# Lideum > An ecommerce delivery partner. Storefront, order management and CRM, built as one system rather than three, for merchants on Shopify and Shopify Plus. Lideum Inc. is a United States company with an office in Brooklyn, New York, delivering from four locations on three continents: the United States, Canada, Armenia and India. Commercial and project contacts are in North American hours and the build carries on after their day ends. Contact: hello@lideum.com, +1 833 643 7737, 61 Greenpoint Ave, Suite 695, Brooklyn, NY 11222, United States. ## Services - [Shopify Plus builds](https://lideum.com/services/#s-plus): A storefront built to the shape of the catalog rather than fitted around a purchased theme. Liquid where the platform should carry the rendering, Hydrogen and Oxygen where the front end needs to be its own application. - [Migrations and replatforming](https://lideum.com/services/#s-mig): Moving a live business onto Shopify from WordPress, Magento or BigCommerce, with the catalog restructured to what it actually needs on the way across. - [Custom development](https://lideum.com/services/#s-dev): The parts of a commerce business that no app covers, built as software and documented so your own team can own it. - [Integrations](https://lideum.com/services/#s-int): Getting Shopify and the systems around it to agree on the same numbers, continuously, including when one of them is down. - [CRM](https://lideum.com/services/#s-crm): The email, SMS and push program treated as software rather than as a campaign calendar. Built alongside the storefront where there is one, so the store and the program hold the same view of a customer instead of half each. - [AI and agentic commerce](https://lideum.com/services/#agentic): Assistants search catalogs, build carts and check policies through published servers. The work is making a store answer correctly on that surface, and deciding what it should refuse to answer. - [Platforms](https://lideum.com/services/#platforms): Where the work actually runs. - [Also offered](https://lideum.com/services/#also): Scoped into a build, or taken on their own. ## Case studies - [Lift Foils](https://lideum.com/work/lift-foils/): A configurable product grown into a multi-region storefront - [Atwater](https://lideum.com/work/atwater/): Liquid and Hydrogen together, with CRM alongside - [Luekens](https://lideum.com/work/luekens/): Multi-location inventory across eight Florida stores - [Albert Nobilis](https://lideum.com/work/albert-nobilis/): Several collections a year, in every language and currency at once - [Rose Code](https://lideum.com/work/rose-code/): A ground-up build selling subscriptions from week one - [Lac Bleu](https://lideum.com/work/lac-bleu/): A storefront that resolves from where the visitor is - [The Jazz Groove](https://lideum.com/work/jazz-groove/): Membership, royalty reporting and mobile playback - [Packwire](https://lideum.com/work/packwire/): Custom packaging through an interactive 3D configurator ## Pages - [Home](https://lideum.com/): What Lideum does, and who it has done it for. - [About](https://lideum.com/about/): How Lideum is set up, and who does the work. - [Insights](https://lideum.com/blog/): Notes on Shopify, migrations, performance and the systems behind a storefront. - [Careers](https://lideum.com/careers/): No listed openings. An open application, and the disciplines Lideum hires into. - [Contact](https://lideum.com/contact/): How to start a conversation. - [Global](https://lideum.com/global/): The four delivery locations, on one working day. - [For robots](https://lideum.com/robots/): This page: the sitemap and the machine readable files. - [Services](https://lideum.com/services/): Six engagements, written as what actually gets built. - [Work](https://lideum.com/work/): Eight case studies, index and detail. ## Writing - [Subscription Commerce: Turning One-Time Buyers Into Recurring Revenue](https://lideum.com/blog/subscription-commerce-recurring-revenue/): Acquiring a customer costs several times what keeping one does, and most brands still spend the budget the other way round. Three subscription models that hold, and what each one asks of the build. - [Why Page Speed Is the New Luxury Standard in Ecommerce](https://lideum.com/blog/page-speed-luxury-standard/): A premium brand obsesses over the weight of a bag and the texture of tissue paper, then ships a storefront that takes six seconds to paint. Where Shopify stores actually lose their speed, and how to get it back. - [The Hidden Cost of a Bad Shopify Migration](https://lideum.com/blog/hidden-cost-bad-shopify-migration/): On paper it is export, import, launch. In practice a migration done carelessly costs months of revenue and years of accumulated search authority. What actually goes wrong, and the checklist that prevents it. - [SEO for Shopify: What Most Agencies Get Wrong](https://lideum.com/blog/seo-shopify-what-agencies-get-wrong/): Shopify has a reputation for being bad at SEO, and it is largely undeserved. The platform handles the fundamentals well. What repeats is a short list of mistakes agencies make and then blame the platform for. - [Headless Commerce: Is It Worth the Hype?](https://lideum.com/blog/headless-commerce-worth-the-hype/): Go headless, it is the future, monoliths are dead. There is a real argument inside that pitch and a lot of oversimplification around it. What headless actually buys, what it actually costs, and when it is the wrong answer. - [The Future of Ecommerce is Personalization, Not Discounts](https://lideum.com/blog/future-ecommerce-personalization/): Traffic is soft, so run a sale. Carts are abandoned, so send a code. The playbook trains customers never to pay full price and quietly hands away the margin. What to build instead. - [Custom Theme or Template: How to Actually Decide](https://lideum.com/blog/roi-custom-shopify-theme/): A premium theme costs a rounding error and a custom build costs real money, so the template looks obvious. The honest comparison is not the invoice, it is what each one carries for the two or three years you run it. - [International Ecommerce: Multi-Currency and Multi-Language Done Right](https://lideum.com/blog/international-ecommerce-done-right/): Selling abroad sounds exciting until you are three months in and discovering your checkout will not take iDEAL, your translations read like a machine wrote them, and your German customers cannot see VAT in the price. ## Legal - [Accessibility](https://lideum.com/legal/accessibility/): Conformance with WCAG 2.2 level AA, how it was assessed, and the display settings. - [Privacy Policy](https://lideum.com/legal/privacy/): What is collected through this site, who processes it, and the choices available. - [Terms](https://lideum.com/legal/terms/): The terms for using lideum.com. An engagement is governed by its own signed agreement. ## Files - [sitemap.xml](https://lideum.com/sitemap.xml): Every page, as XML. - [sitemap.xml.gz](https://lideum.com/sitemap.xml.gz): The same sitemap, gzip. - [sitemap.xml.br](https://lideum.com/sitemap.xml.br): The same sitemap, brotli. - [llms.txt](https://lideum.com/llms.txt): What Lideum is, in the form a model reads first. - [robots.txt](https://lideum.com/robots.txt): Crawl rules. Everything is allowed.