Customer Service Startups funded by Y Combinator (YC) 2026

Calltree makes enterprise-grade AI support reps for call centers. Our AI reps take voice calls and chats like other AI support agents but can also use internal enterprise tools like a homegrown CRM or internal dashboards, like the highly trained humans working there today.

We run customer operations for regulated industries with AI. Our QA layer reviews every interaction, human and AI, cutting manual QA by 99%. On top of it sit specialist agents for onboarding, remediation, reactivation, and retention that own accounts from approved to transacting, chasing customers over WhatsApp, email, and SMS

Stormy runs the office so your crew can run the work. Every call answered, day or night. Every quote followed up until it is a yes or a no. Jobs booked, crews scheduled, parts tracked, invoices sent and collected. Marketing that brings the work in, and an AI agent for every person on your team — all working from the same job record. Built for the shops that keep physical things running: forklift and heavy equipment service, HVAC, electrical, plumbing, roofing, logistics and yards.

Build and run an AI support agent that resolves even your most complex tickets end-to-end. If a tool has an API, you can securely connect it to your agent - just by chatting with Parahelp. For example, you can connect Stripe so your agent can resolve billing questions and refund requests.

Conduit is the leading AI agent platform for hospitality operations. Operators can create, test, and run AI agents on Conduit's harness purpose built for hospitality. On-brand agents handles the full guest journey, converting inquiries into bookings and driving upsell revenue, then runs internal operations and surfaces insights for leadership. All connected to the systems operators already use. Trusted by over 1000+ global hospitality brands across 120+ countries.

Open is an AI-powered, all-in-one customer support and communication platform — used in production by: Print.com, Mollie.com, Viva.com, More.com, Orderchamp.com, OneCarNow.com, and other major enterprise companies. We specialize in solving and automating complex support cases across email, web, phone, SMS, and WhatsApp. We’re a research-based company currently working on releasing Support-Bench, the world’s most comprehensive AI customer support benchmark. Our team consists of +3 programming language builders, a nationwide cybersecurity competition winner at age 16, and a dentist.

Letterbook is the AI-native alternative to Zendesk, Freshdesk, Zohodesk, and Intercom. We help companies manage and resolve customer support tickets across email, in-app feedback, and website forms. Our AI will triage your tickets, write replies, and build your knowledge base.

Frigade AI is an in-app assistant that intelligently guides and onboards your users through your product. Our agent learns your product's interface, gives contextual guidance that adapts to each user, and takes actions directly on your users' behalf. Learn more at Frigade.com

Founded in Vancouver, British Columbia, Ariglad The first AI platform that integrates with support channels and release notes to auto-maintain your knowledge base. Ariglad suggests new articles, updates existing ones, detects duplicates, and merges them. Basically, it puts your knowledge base maintenance on auto-pilot. This is led by Co-Founders Sophie and Ali. They are both completely obsessed with this problem and their customers, who have partnered with Ariglad to become immensely more efficient.

Atlas is a modern, all-in-one customer support platform that is built with AI first. We help you solve your customers problems faster by understanding them more completely with a suite of customer tools like session recording, bug tracking, and event feeds. You can think of us as the next generation Zendesk / Intercom combined with Log Rocket and Linear. Learn More: https://atlas.so/ Products: - Chat Widget - Ticketing - Omni channel Support (chat, email, WhatsApp, Slack Connect, and SMS) - Customer Timeline - Session Recording - Help Center - AI Chatbot - Customer Insights

cloud humans introduces claudIA, every startup's CX super agent. ClaudIA is a GPT based bot who can answer any customer support tickets with zero tech effort and already integrated with your current flows and systems. With ClaudIA, you can automate 55-90% of your customer's enquiries while maintaining the same service level you are proud of. Gain efficiency, scalability and quality today. Try it free (demo): https://www.cloudhumans.com/us/claudia-demo Reach out if you have any questions: bruno@cloudhumans.com

Chatwoot is an AI-powered customer support platform that enables businesses to deliver exceptional support experiences. Built as a modern, open-source, and self-hosted alternative to tools like Intercom and Zendesk, Chatwoot brings all your customer conversations into one place. You can connect email, website live chat, social media accounts, WhatsApp, and more, making it easy to manage every interaction from a single, unified platform.

OutRival's AI Agents make outbound calls, send texts, and write emails for enterprises in education, insurance, and travel. We drive revenue through millions of proactive conversations monthly. Companies go live in under 2 weeks.

Observe.AI, a leader in Contact Center AI, transforms customer experiences and improves agent performance by helping top brands analyze 100% of calls and streamline quality assurance workflows. With Observe.AI, businesses transcribe every call with high accuracy and coach agents while gaining full visibility into their customer service operations. Observe.AI brings the power of agent assistance, automatic speech recognition, and Natural Language Processing (NLP) to modern contact centers and their frontline teams. Observe.AI is trusted by more than 150 customers and partners, including Root Insurance, Alcon Laboratories, Tripadvisor, and Pearson. Backed by Menlo Ventures, Next47, NGP Capital, Scale Ventures, Nexus Ventures, Emergent Ventures, Steadview Capital, 01 Ventures and Y-Combinator, Observe.AI’s headquarters is in San Francisco with an office in Bangalore, India. For more information, visit www.observe.ai.

HiOperator provides customer support as a service. Banish your ticket backlog and free up your in-house team for higher level tasks.

Welcome to Netomi AI, where we are revolutionizing the world of customer experiences through cutting-edge artificial intelligence. Our mission is clear: to create AI that not only solves mission-critical problems for the world's largest brands but also fosters genuine customer love. Backed by industry titans like Y-Combinator, Index Ventures, Jeffrey Katzenberg, and Greg Brockman, Netomi AI is at the forefront of defining the future of AI-driven customer engagement. At Netomi, we embody our core values in everything we do: Passion: We love what we do, genuinely. We persevere, creatively problem solve, and grow from adversity. Customer Focus: We obsess over creating a positive impact and deliver experiences that meet or exceed the needs of our customers, and their customers. One Team: We believe in working collaboratively as One Team to meet shared objectives and goals. Joining Netomi AI means being part of a dynamic, fast-growing team that values innovation, creativity, and hard work. As a key player in the Generative AI revolution, you'll have the opportunity to significantly impact our success while developing your skills and career in the ever-evolving field of AI. Netomi AI is not just a workplace; it's a community of visionaries shaping the future of customer engagement. If you're ready to be part of something extraordinary, where your passion aligns with our values and vision, we invite you to explore opportunities with us. Your journey to redefine customer experiences with brand-safe AI starts here. Mission To empower the highest quality customer experiences with brand-safe AI. Vision Building Brand and Customer Love

Built for the marketer doing five jobs at once. Easily install an Olark AI agent to answer questions, qualify visitors, and know exactly when to bring in a human. Olark is easy-to-use live chat software that lets you talk to customers on your website. Olark can help you track leads, drive sales, increase conversions, and provide great customer service. Real-time visitor information like login name, geographic location, purchase history and cart contents help you personalize every interaction and strengthen customer relationships. Sign up and start making your customers happier today! Use our previewer on https://olark.com to try it on your website in less than 60 seconds.

We make it easy for small and medium businesses to build an AI sales agents for their websites and social media, augmenting their sales capacity. This assistant provides personalized shopping recommendations to customers and is available 24/7 to answer their questions.

Artificial intelligence for modernized customer support. We provide end-to-end AI-powered solutions for business to connect with and support their customers. By leveraging the state of art deep learning and natural language processing technology, we make the customer support teams more intelligent and efficient.

Acquired by Google, integrated natively into Google Maps.