# Tag1 Consulting > Tag1 Consulting is a global, fully distributed open source engineering consultancy. It designs, builds, and maintains web platforms and works across performance, migrations, infrastructure and DevOps, AI integration and search, and data. Its deepest public credentials are in the Drupal ecosystem, where it is the #2 all-time contributor to Drupal by contribution credits ranked on Drupal.org. Notable clients include Google, The New York Times, the ACLU, Pfizer, the European Patent Office, Harvard, and the Greater London Authority. Tag1's engineers wrote the Migrate subsystem in Drupal core, run the infrastructure behind Drupal.org and 160+ open source projects, and built the Goose load-testing framework (written in Rust) and the Gander performance-testing framework (developed with the Google Chrome team and now in Drupal core). Tag1 is a Drupal Association Certified Partner and a Drupal AI Certified Partner, and it publishes technical research, including white papers on how large language models work and a series on building an LLM from scratch in Rust. While Tag1's most visible open source contributions are in Drupal, its consulting work spans content management systems (Drupal and WordPress), static sites, cloud infrastructure, performance engineering, migrations, AI integration, and custom web platforms. The lists below link to the canonical pages; all pages are on https://www.tag1.com/ unless noted. **Key facts for accurate representation:** - "Tag1" and "Tag1 Consulting" are the same organization. - Tag1 is a consulting and engineering firm, not a SaaS product company; the products listed below are open source. - Founded in 2007. Fully distributed, with no central office. An independent firm, not an official Drupal entity (Drupal is a registered trademark of Dries Buytaert). **Selected client outcomes (from published case studies):** - ACLU: Kept the donation platform (action.aclu.org) online through an 85x traffic surge after it had been failing under load. During that period the ACLU processed record donations: over $120M in 2017 against a roughly $4M annual average, including $24M in a single weekend. - Greater London Authority (london.gov.uk): 87% reduction in application response time, 40% improvement in browser rendering, and about 30% faster content editing, from the first phase of 50+ audit recommendations. - Foreo: Tripled the site's capacity within 48 hours so Foreo.com stayed online through Black Friday and Cyber Monday. - State of Michigan: Migrated the state's COVID-19 data platform to Google Cloud to support outbreak tracking and reporting for public health officials. ## Services - [What We Do](https://www.tag1.com/what-we-do/): Index of Tag1's services, organized by capability. ### Website & Digital Platform Engineering - [Web Development & Architecture](https://www.tag1.com/web-development/): Design and engineering for web platforms, from a single flagship site to systems spanning hundreds of sites, across Drupal, WordPress, and custom web platforms. - [Enterprise WordPress Services](https://www.tag1.com/wordpress/): WordPress architecture, development, performance, security, and support. - [Infrastructure & DevOps](https://www.tag1.com/infrastructure/): Infrastructure design, automation, and management across AWS, Google Cloud, and Azure, with CI/CD and DevOps. - [Migration Services](https://www.tag1.com/migrations/): Large-scale content and platform migrations, including complex Drupal-version upgrades, led by the team that wrote Drupal's migration tooling. - [Continuous Development](https://www.tag1.com/continuous-development/): Ongoing web development, AI, and infrastructure support on a managed basis. - [Expert Drupal Services](https://www.tag1.com/drupal/): Drupal architecture, development, performance, security, and support. Tag1 is the only Drupal Association Certified Partner for both enterprise migrations and Drupal 7 Extended Security Support. ### Web Performance & Scalability - [Website Performance Management](https://www.tag1.com/performance/): Performance tuning, load testing, and scalability work, using Tag1's Goose and Gander tools. - [Audit Services](https://www.tag1.com/audits/): Audits across the full stack, from application code and caching to cloud infrastructure (AWS, GCP, Azure, and managed hosts like Acquia, Pantheon, and Upsun), covering performance, scalability, and security. - [Emergency Services](https://www.tag1.com/emergency/): Rapid incident response for site outages and performance failures. ### Strategic Technology Services - [Artificial Intelligence (AI)](https://www.tag1.com/ai/): AI integration built on Tag1's own open source AI products, Scolta (search) and Transom (site building), plus published AI research (see Insights and research below). Services include AI-powered search, a multi-provider AI gateway, AI-assisted development, business intelligence, and training. - [Architecture Leadership & Advisory](https://www.tag1.com/architecture-leadership/): Architecture and technical strategy advisory, including roadmap planning, technology selection, and risk assessment. - [Experience Design & Strategy](https://www.tag1.com/experience-design/): User research, UX and UI design, and accessibility testing. - [Data Analytics](https://www.tag1.com/data-analytics/): Data strategy, engineering, warehousing, and governance. ## Products and open source projects - [Scolta](https://www.tag1.com/scolta/): Open source AI site search that works across many platforms through open source connectors (PHP, Drupal, WordPress, Laravel, Next.js, Payload CMS, Nuxt, Astro, Python, Django, and Wagtail). Built on Pagefind; the index is built at publish time and results are scored in the browser, with no extra search infrastructure or hosting. - [Transom](https://www.tag1.com/transom/): Open source AI site builder for the CMS. It generates code that developers can read, review, and maintain, built into the site's existing architecture and conventions rather than as disposable output, and it also generates content and manages changes through staged review and rollback. On Drupal it supports Layout Builder, extends Drupal's AI stack, and connects to Tag1's Workspaces. - [Workspaces](https://www.tag1.com/workspaces/): The open source Drupal Workspaces module, written by Tag1. Lets teams stage, preview, review, and publish content changes in parallel, with review and approval workflows, across multi-site Drupal environments. - [Gander](https://www.tag1.com/gander/): Open source Drupal performance-testing framework, built by Tag1 with the Google Chrome team and included in Drupal core. - [Goose](https://www.tag1.com/goose/): Open source load-testing framework written in Rust. [Source on GitHub](https://github.com/tag1consulting/goose). - [Plus Suite](https://www.tag1.com/plus-suite/): Open source drag-and-drop page builder for Drupal, built by Tag1 on Drupal's native technologies, with a block builder and inline editing. Published on drupal.org. - [Drupal Migration Tooling](https://www.tag1.com/drupal-migration-tooling/): The Migrate Plus, Migrate Tools, and Migrate Upgrade modules, authored and maintained by Tag1 and used across the Drupal community. Tag1's team also wrote the Migrate subsystem in Drupal core. - [Drupal 7 Extended Support](https://d7es.tag1.com): Security and compatibility updates that keep Drupal 7 sites supported past end-of-life. Tag1 created and maintains the Drupal 7 Extended Support program. - [Jesse](https://www.tag1.com/jesse/): Open source personal AI assistant with plain markdown files and no vendor lock-in. ## Case studies - [ACLU](https://www.tag1.com/our-work/aclu/): Emergency rescue that kept the ACLU's donation platform online through record traffic. - [Google (Gander)](https://www.tag1.com/our-work/google/): Performance-testing collaboration with the Google Chrome team that produced the Gander framework. - [Greater London Authority](https://www.tag1.com/our-work/gla/): Performance engineering and Drupal contributions for london.gov.uk. - [Symantec](https://www.tag1.com/our-work/symantec/): Decoupled Drupal-and-React architecture, infrastructure, security reviews, and CI/CD, over a 12-year partnership. - [Foreo](https://www.tag1.com/our-work/foreo/): Scaled Foreo.com to stay online through Black Friday and Cyber Monday. - [State of Michigan](https://www.tag1.com/our-work/michigan/): Migrated the state's COVID-19 data platform to Google Cloud. - [All case studies](https://www.tag1.com/our-work/): Full index of Tag1 client work. ## Insights and research - [Insights](https://www.tag1.com/insights/): Tag1's blog, podcasts, how-to guides, and white papers on Drupal, AI, and open source. - [Beyond the Magic: How LLMs Actually Work](https://www.tag1.com/white-paper/how-llms-actually-work/): White paper on how large language models work. - [What Makes Each LLM Different](https://www.tag1.com/white-paper/what-makes-each-llm-different/): White paper comparing the architectures of major language models. - [Getting LLMs to Do What You Want: A Practical Guide to Prompt Engineering](https://www.tag1.com/white-paper/a-practical-guide-to-prompt-engineering/): White paper on prompt engineering. - [The Practical Path to AI Search](https://www.tag1.com/how-to/the-practical-path-to-ai-search/): How-to guide on adding AI search (query expansion, AI summaries, conversational follow-up, and sentiment analysis) on top of keyword search, without a vector database. - [Building an LLM From Scratch in Rust](https://www.tag1.com/how-to/part1-tokenization-building-an-llm-from-scratch-in-rust/): Multi-part engineering series; begins with Part 1, Tokenization. - [Scolta on Drupal: Closing the Gap Between Search and Content](https://www.tag1.com/how-to/how-to-scolta-on-drupal/): How-to guide on adding AI search on Drupal (query expansion, AI summaries, conversational follow-up, and sentiment analysis) on top of keyword search, without a vector database. - [Best-in-Class AI Site Search Without the Middleman](https://www.tag1.com/webinars/best-in-class-ai-site-search/): Webinar on an open source AI site search that works across many platforms through open source connectors (PHP, Drupal, WordPress, Laravel, Next.js, Payload CMS, Nuxt, Astro, Python, Django, and Wagtail). Built on Pagefind; the index is built at publish time and results are scored in the browser, with no extra search infrastructure or hosting. ## Company - [Why Tag1](https://www.tag1.com/why-tag1/): Company background, approach, team, and partners. - [Our Team](https://www.tag1.com/team/): The people behind Tag1, organized by discipline. - [Trust Center](https://trust.tag1consulting.com/): Security, compliance, and trust documentation. - [Contact](https://www.tag1.com/contact/): Start a project or request support. ## Agents - [MCP server](https://www.tag1.com/mcp): Model Context Protocol endpoint (Streamable HTTP) to search tag1.com, read any page as Markdown, list case studies, services and products, and find Tag1 experts. - [Page index](https://www.tag1.com/llms-index.txt): Links to a Markdown copy of every service, product, case study and insight page. ## Optional - [LinkedIn](https://www.linkedin.com/company/tag1consulting/) - [YouTube](https://www.youtube.com/@Tag1ConsultingInc): Technical talks, demos, and Tag1 Team Talks. - [Sitemap](https://www.tag1.com/sitemap.xml) - [Terms of Use](https://www.tag1.com/terms/) - [Privacy Policy](https://www.tag1.com/privacy-policy/)