Best Alternatives to Circleback

Kustomer is an AI-powered customer service CRM platform providing a unified customer history view and conversational support tools for e-commerce, retail, and direct-to-consumer br

Walnut is a Tel Aviv, Israel-based interactive sales demo platform — backed by Y Combinator (W20) with $56 million in total funding including a $35 million Series B in January 2022

Front is a customer operations platform combining a shared inbox, CRM, and team collaboration tools to help businesses manage high-volume customer communications across email, SMS,

Spiff (now Salesforce Spiff) is a sales commission management and incentive compensation platform automating the calculation, payment, and transparency of sales commissions for rev

Retell AI is a voice AI infrastructure platform providing APIs and tools for building conversational AI phone agents with low latency, natural turn-taking, and integration with maj

Artisan is a San Francisco-based AI workforce automation platform — backed by Y Combinator (W24) with $46 million in total funding including a $25 million Series A in April 2025 le

Leaping AI is a voice AI platform building autonomous agents that handle inbound and outbound phone calls for contact centers — replacing repetitive call center workflows with LLM-

AiSDR is an AI-powered sales development representative (SDR) platform that automates outbound prospecting, personalized email outreach, and follow-up sequences for B2B sales teams

Fiber AI is a San Francisco-based AI B2B prospecting and data platform — backed by Y Combinator (S23) with seed funding from TRAC, Y Combinator, and Soma Capital — providing GTM te

Help Scout is a remote-first customer service platform providing email-based shared inbox, knowledge base, and live chat tools for small and mid-size businesses — designed around t

Aether is an AI-powered go-to-market platform for home services installers — specifically solar, roofing, HVAC, and landscaping companies — that automates the technical sales workf

Topo is a Paris, France-based AI sales agent platform — backed by Y Combinator (W24) with $500,000 raised in a pre-seed round in April 2024 — deploying custom-trained AI sales deve

Octolane AI is a San Francisco-based AI-native CRM platform — backed by Y Combinator (W24) with $3.1 million in total funding including a $2.6 million oversubscribed seed in April

Freshworks is a cloud-based business software company providing customer support, IT service management, sales CRM, and marketing automation tools for mid-market companies and grow

DryMerge is a San Francisco-based AI CRM automation platform that eliminates manual data entry by monitoring emails, calendar events, and business activities and automatically upda