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Simple AI

YC S24

San Francisco, US · Founded 2024 · 11 employees · Hiring · 13 known investors

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Simple AI builds AI agents for revenue teams that automate customer interactions across voice, text, chat, and email channels. The agents perform sales and support tasks like booking appointments, following up on leads, handling objections, and personalizing recommendations to close deals.

Also known as Simple AI Lab Company · TBD

AI & Machine LearningEnterprise SoftwareSaaSSales TechArtificial IntelligenceSalesCall CenterOperationsAIUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (S24)

Simple AI was founded in 2024 by Catheryn Li and Zach Kamran.

CLCatheryn Li
Catheryn LiCo-Founder & CEOShe previously led software engineering at Y Combinator for four years, overseeing Startup School and related internal platforms, and holds degrees in computer science and mathematics from MIT.
ZKZach Kamran
Zach KamranCo-Founder & CTOZach Kamran is co-founder of Simple AI and previously worked on Bookface while at Y Combinator.
ZK
Zach Kamran Catheryn LiFounder
JL
Jona LeeRecruiter

Investors · 13

SBXilisted by SBXiCambridge · $10K – $1M

How we know: SBXi's portfolio page · Y Combinator's founder network · Not right? Tell us

Think+ Ventures Management, Llclisted by Think+ Ventures Management, LlcPalo Alto · $200K – $500K

How we know: Think+ Ventures Management, Llc's portfolio page · Y Combinator's founder network · Not right? Tell us

True Ventureslisted by True VenturesSan Francisco · $500K – $3M

How we know: funding news · upstartsmedia.com · trueventures.com · Y Combinator's founder network · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · funding news · upstartsmedia.com · open dataset · 5k.vc investor directory · Not right? Tell us

Agrolimen Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

Andreessen HorowitzreportedMenlo Park · $500K – $50M

How we know: Y Combinator's founder network · Not right? Tell us

Capitalize VCreportedChicago · $100K – $200K

How we know: Y Combinator's founder network · Not right? Tell us

HNVRreportedPortola Valey

How we know: Y Combinator's founder network · Not right? Tell us

Massive Tech VenturesreportedSeattle

How we know: funding news · upstartsmedia.com · Y Combinator's founder network · Not right? Tell us

Recursion Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

Roadrunner VenturesreportedAlbuquerque · $1M

How we know: Y Combinator's founder network · Not right? Tell us

Also in the syndicate · 1

First Harmoniclead

Funding

SEC filings, press & company announcements

$14M disclosed across 1 of 4 rounds · 2026

Source: company announcements and press reports — follow each round's link for the claim.

Images

Simple AI photo

Related companies · 10

DialpadDialpad provides a platform that transforms customer conversations into actionable intelligence for businesses. The company serves organizations seeking to improve their operations through conversation analytics and insights.
Caseflood.aiCaseflood.ai provides intake software for high-end law firms, helping them manage client onboarding and case intake processes.
Synthflow AISynthflow provides a platform for building AI voice agents using a modular, API-connected builder with in-house telephony, testing sandbox, real-time call monitoring, and data fine-tuning. It targets enterprises that need to deploy and manage voice automation at scale.
AriniArini is an AI-powered front desk system for dental groups, DSOs, and private practices that handles patient calls and text messages 24/7, offering scheduling, call routing, and custom workflow management. The platform integrates with existing practice management software and phone systems to book appointments and reduce missed calls.
GoodCallGoodcall is an AI phone assistant platform designed to integrate with business communication and productivity tools to enhance customer service and operational workflows across various industries.
DodoDodo operates a multi-agent AI system that handles phone and text communications for clinics, managing tasks like appointment scheduling, prescription refills, patient intake, and follow-up care while integrating with existing clinic software.
Curious ThingVoice AI for customer engagement, supporting onboarding, validation and surveys through natural conversations.
SigmaMind AISigmaMind AI provides a Voice AI platform for developers and enterprise teams to build and deploy AI agents that can execute actions across voice, chat, and email channels. The platform is used for customer support automation, sales follow-up, appointment booking, and other enterprise communication tasks.
SmithSmith.ai provides an AI Receptionist backed by optional North America-based human agents that screens calls, books appointments, handles payment collection, and updates CRMs for mid-market companies. It also offers Virtual Receptionist plans staffed by live agents available 24/7, plus call analytics and transcription dashboards.
CareforceCareforce provides software solutions for preventive care coordination and patient engagement, enabling healthcare organizations to automate appointment scheduling, referral management, and care workflows while improving clinical outcomes.

Companies working in the same space as Simple AI.

Legal entities · 1

corporate structure
Simple AI Lab Company

In the news

Simple AI Raises $14M in Seed Fundingfinsmes.com · Feb 2026Simple AI - AI phone assistant for consumersycombinator.com · Dec 2024Simple AI - a better Siriycombinator.com · Aug 2024

Frequently asked questions

What does Simple AI do?
Simple AI builds AI agents for revenue teams that automate customer interactions across voice, text, chat, and email channels. The agents perform sales and support tasks like booking appointments, following up on leads, handling objections, and personalizing recommendations to close deals.
Who founded Simple AI?
Simple AI was founded by Catheryn Li, Zach Kamran in 2024.
Who are Simple AI's investors?
Simple AI's investors include Samsung Next, SBXi, Think+ Ventures Management, Llc, True Ventures, Y Combinator, Agrolimen Ventures, Andreessen Horowitz, Capitalize VC and 4 more.
How much funding has Simple AI raised?
Simple AI has disclosed $14M raised across 1 of its 4 known rounds.
Where is Simple AI headquartered?
Simple AI is headquartered in San Francisco, US.