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Best Customer Support AI Startups in United States

48 startups match both filters.

Crescendo

US est. 2024

AI-native contact center blending agents and humans

Raised
$50M
Stage
S-C
74

Ema

US est. 2023

Universal AI employee for the enterprise

Raised
$86M
Stage
SERIES A EXTENSION
67

Sierra

Verified
US est. 2023

Conversational AI agents for every business

Raised
$2.2B
Stage
S-D
65

Decagon

Verified
US est. 2023

AI agents that actually solve customer problems

Raised
$546M
Stage
S-D
64

Anterior

US est. 2022

Clinician-led AI platform that automates prior authorization and clinical administrative work for health plans.

Raised
$64M
Stage
S-C
62

Toma

US est. 2024

AI voice agents for car dealerships

Raised
$21M
Stage
S-A
61

Hume AI

Verified
US est. 2021

Empathic AI voice and emotion intelligence

Raised
$73.9M
Stage
S-B
57

Agency

US est. 2024

Agentic AI for customer success and customer experience

Raised
$20M
Stage
S-A
57

Canary Technologies

US est. 2018

Hospitality AI platform for 20,000+ hotels worldwide

Raised
$180M
Stage
S-D
57

Hightouch

US est. 2018

Go from insight to live campaign in minutes – powered by all your data, brand knowledge, and AI.

Raised
$150M
Stage
S-D
56

Numa

US est. 2021

AI agents that answer every call and fill the service bay for dealerships

Raised
$48M
Stage
S-B
56

Moveworks

Verified
US est. 2016

AI copilot for enterprise IT and HR

Raised
$315M
Stage
ACQUISITION
55

Salient

US est. 2023

AI voice agents handling borrower customer service for consumer lending

Raised
$60M
Stage
S-A
55

Cresta

Verified
US est. 2017

Generative AI for the contact center

Raised
$280M
Stage
S-D
54

EliseAI

US est. 2017

Conversational AI assistant for property management and leasing.

Raised
$390M
Stage
S-E
54

Atomicwork

US est. 2022

Agentic ITSM and employee service platform

Raised
$39M
Stage
S-A
54

Open

US est. 2023

Unified AI customer support platform that resolves complex L2 and L3 issues

Raised
$8.5M
Stage
Pre-S
54

Domo

Verified
US est. 2010

Business intelligence powered by AI

Raised
$690M
Stage
IPO
53

Giga

US est. 2023

Enterprise voice AI agents that handle customer support like humans

Raised
$61M
Stage
S-A
53

Loman AI

US est. 2024

24/7 AI phone agent for restaurants that never misses a call

Raised
$3.5M
Stage
Seed
53

Siena AI

US est. 2022

Empathic autonomous AI customer service agent for commerce brands

Raised
$11.1M
Stage
Seed
53

Inkeep

US est. 2023

No-code platform to build trusted AI support agents from your knowledge

Raised
$13M
Stage
Seed
53

Krisp

US est. 2017

Voice AI for meetings with #1 noise cancellation, accent AI, translation, and AI note taker.

Raised
$17.5M
Stage
S-A
52

Coval

US est. 2024

Simulation and evaluation platform for voice and chat AI agents, modeled on self-driving car testing.

Raised
$3.3M
Stage
Seed
52

Hello Patient

US est. 2023

Conversational AI for healthcare's front door across voice, text and chat

Raised
$22.5M
Stage
S-A
52

Phonely

US est. 2023

AI receptionist that answers FAQs, routes calls and books appointments

Raised
$19M
Stage
S-A
52

14.ai

US est. 2024

AI-native customer support agency replacing support teams for startups

Raised
$3M
Stage
Seed
52

Gleen AI

US est. 2022

Hallucination-resistant generative AI customer support agent

Raised
$4.9M
Stage
Seed
52

Chatbase

US est. 2023

Custom AI chatbots trained on your data.

Raised
$3M
Stage
Seed
51

Yuma AI

US est. 2022

AI support agent for e-commerce and Shopify merchants

Raised
$5.8M
Stage
Seed
51

Signals

US est. 2026

Proactive AI customer support that engages high-value users

Raised
$500K
Stage
Seed
50

Prox

US est. 2025

AI technical support for complex physical products

Raised
$500K
Stage
Seed
50

Leaping AI

US est. 2023

Human-like AI voice agents for companies and call centers

Raised
$4.7M
Stage
Seed
50

Q Concierge

US est. 2024

Voice AI infrastructure that answers every hotel call

Raised
$3M
Stage
Seed
50

Kore.ai

Verified
US est. 2014

Conversational AI for enterprise customer experience

Raised
$223M
Stage
S-D
49

Pollen

US est. 2026

AI agents that automate customer success

Raised
$500K
Stage
Seed
49

Observe.AI

Verified
US est. 2017

AI intelligence for the contact centre

Raised
$213M
Stage
S-C
48

Resolve AI

US est. 2023

AI SRE for complex production environments

Raised
$190M
Stage
SERIES A EXTENSION
48

AgentPhone

US est. 2026

Phone numbers for AI agents — voice and messaging through one unified API.

Raised
$500K
Stage
Seed
48

11x

US est. 2022

Digital workers that don't just automate tasks – they transform your business with human-like intelligence.

Raised
$74M
Stage
S-B
47

Avoca AI

US est. 2023

The AI Front Office for Home Services, providing always-on agents to answer calls, fill schedules, and streamline operations.

Raised
$125M
Stage
S-B
47

Speechify

Verified
US est. 2017

Turn any text into natural audio with AI

Raised
$40M
Stage
S-A
46

AptEdge

US est. 2018

AI answer engine that speeds up technical customer support resolution

Raised
$11M
Stage
Seed
46

Klarify

US est. 2024

AI agent for therapists that writes clinical notes, treatment plans, and insurance claims automatically.

Raised
$125K
Stage
Pre-S
45

Callab AI

US est. 2024

AI voice agents that plug into legacy on-premises PBX telephony systems without infrastructure migration.

Raised
$500K
Stage
Seed
43

Elyra

US est. 2025

AI voice and email agents that handle restaurant reservations and optimize table allocation in real time.

Raised
$500K
Stage
Seed
43

Boom AI

US est. 2025

AI agents that recover lost e-commerce revenue through personalized real-time conversations.

Raised
$500K
Stage
Seed
43

Forethought

US est. 2017

AI for customer support automation

Raised
$25M
Stage
S-D
39