Alternatives to Sierra

Cloud contact center software provider.

Enterprise AI platform enabling businesses to build and deploy AI agents for automation and service.

A collaborative platform for designing, prototyping, and launching AI agents for chat and voice.

AI-powered customer service platform for seamless human-AI collaboration.

Helping critical organizations accelerate AI adoption

Cloud-based contact center solution for unified customer experiences across all channels.

Enterprise Conversational AI platform for automating customer interactions and business processes.

Live chat and AI chatbot platform for customer support

Builds agentic AI applications to turn complex business operations into autonomous, intelligent workflows.

Generative AI for contact centers.

Voice AI agent platform handling more calls per second than the US 911 system, $60M ARR with a 35-person team.

AI QA & training platform that reviews 100% of customer conversations to increase CSAT.

Ultravox.ai (formerly Fixie.ai) is building human-like voice AI agents and models for natural, real-time communication.

Aisera delivers an Agentic AI platform leveraging artificial intelligence and machine learning to automate and transform enterprise service desk operations across IT, HR, finance, legal, facilities, and customer service domains.

Customer experience automation platform with email marketing, CRM, and marketing automation.

Enterprise-grade AI agents that automate sales, support, HR, and collections processes via WhatsApp.

Lyzr AI provides a full-stack agent framework and infrastructure for enterprises to build and manage autonomous AI agents.

Truffle AI provides an AI agent development platform that enables businesses to build, customize, and deploy AI agents to automate and unify workflows in minutes.

Ema is a Universal AI Employee platform that provides secure, compliant, and conversational AI agents for enterprises, automating complex workflows across various business functions.

LangGraph is an open-source framework for building, managing, and deploying long-running, stateful agents as graphs.

One control plane for trustworthy enterprise AI — performance, observability, guardrails, and governance across the full lifecycle.

Enterprise AI agent platform for building, operating, and scaling secure AI agents to automate complex business processes.

Voice and agentic AI platform enabling businesses to create conversational experiences.

AI-powered customer service automation platform using agentic AI to resolve customer inquiries.

PolyAI is a leading provider of enterprise AI agents for customer service, specializing in creating the world's most lifelike conversational voice assistants that resolve millions of customer inquiries.

Propane is building the operating system for AI-native Customer Intelligence

No-code AI agent platform for automating business operations like customer support and sales.

AI voice agents automating outbound healthcare revenue cycle management calls.

An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby.

AI-powered customer service automation platform for e-commerce and retail brands.

Enterprise-grade conversational AI platform for building intelligent virtual assistants and contact center automation.

White-label AI voice agents and chatbots for automated customer support and task automation.

Visual IDE for programming and deploying AI Agents without writing code.

AI receptionist for tourism and experience operators that answers calls and books directly.

Agentic platform for building, running, and optimizing AI agents across voice, SMS, chat, and web.

Observe.AI is an AI platform for contact centers that automates calls, assists agents in real-time, and optimizes QA processes to enhance customer experience and operational efficiency.

AI agents for customer interactions.

Agency builds custom AI Agents that operate 24/7/365, offering consulting, development tools, and an observability platform to help businesses automate.

Agentic AI-based ERP automation for core finance processes.

The mid-market agent platform delivering enterprise reliability with speed and flexibility.

Element1 develops Azara, an AI platform that automates workflows through human-centered, no-code text-to-action agents.

AI coworkers for fraud and risk teams that automate investigations and provide explainable decisions.

kluster.ai has been acquired by MITO. kluster.ai services were sunset on June 9, 2026.

A history of innovation combined with a trusted track record makes TranzAct the shipper’s choice for making their supply chain a competitive advantage.

Humoniq provides voice and text AI agents to automate end-to-end customer support operations for travel companies.

AI platform for financial services, enabling intelligent automation and agentic solutions for banks and fintechs.

Open-source autonomous AI agent platform that automates complex digital workflows.

Spanish SaaS platform providing AI agents for customer service and process automation.

Orange Slice uses AI agents to analyze online signals and firmographic data, helping B2B sales teams identify and engage high-intent prospects who are actively looking to buy.

AI-powered platform for building and deploying custom AI agents.

Generative AI friends and AI-powered virtual characters (Shapes) for social platforms.

Avon AI provides an enterprise-grade management platform for AI agents in production, enabling organizations to monitor and control their GenAI agents with confidence.

Building the agentic operating system for the enterprise.

LlamaIndex empowers developers to build agents that extract insights and take action on complex enterprise documents, combining industry-leading parsing with a trusted agent framework.

Always-on AI DevOps engineer that diagnoses CI failures, fixes flaky tests, and ships fixes.

A UK challenger bank offering a digital-first banking experience with a focus on innovative AI-powered financial tools.

Vibecode is a platform that helps developers build and deploy AI agents.

AI-powered platform automating customer support and sales processes for enhanced efficiency and satisfaction.