# Leat Solutions — Andrew Johnson > Independent cloud architecture and automation consulting. Case studies from CRM migrations, infrastructure modernization, security hardening, and operations programs. ## Case Studies - [147,000 Customer Records Migrated from Keap to HubSpot Without Disrupting Active Sales](https://leatsolutions.com/case-studies/147k-contact-crm-migration-hubspot): The Keap Max Classic (Infusionsoft) platform had become a bottleneck. - [18% Employee Productivity Boost Using Tools The Business Already Owned](https://leatsolutions.com/case-studies/18-percent-productivity-boost-microsoft-365): A 50-person organization was relying on long email threads and a central file server that nobody used consistently. - [$50K in Annual Energy Savings from a Data Center Operational Overhaul](https://leatsolutions.com/case-studies/50k-energy-savings-data-center-optimization): A telecommunications company's R&D lab had grown into a liability: cluttered space, failing cooling infrastructure, unmanaged assets, and energy costs spiraling out of control. - [First Complete Technical Map of a Company That Had Never Been Documented](https://leatsolutions.com/case-studies/legacy-system-reverse-engineering-documentation): Inherited a stack with halfway built integrations, an outdated vendor mix, and zero documentation. ## About - [Home](https://leatsolutions.com)