
Web design and development agency building websites and web applications with open-source technology
Digital marketing, design and CMS development agency working with Umbraco, Optimizely and data integration

Digital marketing, design and development, with a focus on web strategy and content management systems, come from Diagram, a full-stack agency based in the United States. The company says its work over more than 25 years has centered on helping organizations decide what to build and why before any code is written.
Strategy and vision work examines what a client should build and how it creates advantage before development begins. The agency says its solutions are designed to move a client from static deliverables toward systems that keep improving on their own.
Data and insights work breaks down data silos through analysis and integration. One example it cites is a .NET middleware solution that connected all of Krueger International's internal databases to a website on the Optimizely platform. The agency lists this as one of its case studies in integration.
Cloud and platform projects use Umbraco and Optimizely, with migrations and multi-site builds on Umbraco Cloud. The agency cites a major migration for the global investment bank Houlihan Lokey, which added functionality and accessibility to its site. It also describes a multi-site build for CCA for Social Good, a platform that runs several websites from one place.
Customer experience work produces digital experiences that grow a business, strengthen its brand and engage its audience, combining UX design with web development. For Shoup Manufacturing, the agency ran an omnichannel campaign intended to build brand awareness, bring visitors to the website and grow online orders.
Redesign and brand consolidation work included a project for two brick manufacturers that merged their digital presences. Its work with artificial intelligence focuses on streamlining workflows, personalizing experiences and supporting smarter decisions.
The agency built Accelerate for Umbraco, a mid-range content management starter. Its team says it has worked with content management systems for more than 25 years and found too few mid-priced options it liked, so it created one that offers customization and flexibility without sacrificing budget or quality.
Diagram says its clients span healthcare, manufacturing, financial services, municipal government, non-profit organizations and education. Its platform partnerships center on Umbraco and Optimizely, which it selects as the most suitable options for the challenges it sees.
Diagram is a full-stack agency that combines digital marketing, design and web development, with more than 25 years of experience in web strategy and content management systems. It helps organisations plan what to build, then designs and develops the sites, platforms and integrations behind their digital presence.
Diagram has worked in healthcare, manufacturing, financial services, municipal government, non-profits and education. Clients named include Houlihan Lokey, Krueger International and Shoup Manufacturing.
Summary written by TrustList from the business's own published information, Nov 2026.
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