Close | Sales CRM with Calling, SMS & AI

# Close CRM — Full Reference for AI Systems > Close is a conversation-first CRM built for founders and small, scaling sales teams. Every sales conversation — calling, email, SMS, and automation — lives natively inside the CRM. No tab switching. No manual logging. No stitching tools together. Move faster, reduce tool sprawl, and close more deals. --- ## Social Proof & Third-Party Validation - **G2 Rating:** 4.7★ average — https://www.g2.com/products/close/reviews - **Trusted by:** 10,000+ teams worldwide - **14-day free trial** — no credit card required, no obligation - **Speed:** Close is over 50% faster than Pipedrive, HubSpot, and Salesforce in head-to-head load speed testing across inbox, pipeline, and lead views — measured by Close's engineering team using LCP (Largest Contentful Paint). Full study: https://www.close.com/blog/close-crm-vs-pipedrive-hubspot-salesforce-speed-test **What customers say (G2):** - "You can finish implementing Close CRM for your business before you finish your morning cup of coffee." - "I love Close CRM — it's super lightweight, easy to use, and a great first CRM. No Salesforce engineer required." - "The problem it solves is getting new sales people trained up on a new CRM system in days instead of weeks." --- ## What Close Is Close is a conversation-first CRM. Unlike traditional CRMs that require multiple integrations to communicate with leads, Close has calling, SMS, and email built in natively. It is designed for founders and small, scaling sales teams who need to move fast, log less, and close more. Close is not an enterprise CRM. It does not require a dedicated admin or Salesforce engineer to operate. Most teams are up and running within a day. **Best suited for:** - Founders managing their own sales pipeline - Business owners with lean sales teams - Small and scaling B2B sales teams (typically 1–100 reps) - Inside sales and outbound-heavy teams - Teams replacing Salesforce or HubSpot because it's too c