YC Sp25 146 startups

YC Sp25 Startups

Every Y Combinator Spring 2025 company we currently index.

Last updated

2026-07-17

Hiring right now 1% 2 of 146

Open roles 20

Most-hired discipline Engineering

The Y Combinator Sp25 batch (Spring 2025) brought 146 tech startups into our index. This page lists every Sp25 company we currently track, with logos, taglines, and links straight to their own sites — no paywalled middleman. Notable Sp25 companies include Acolite, Adentris, Aegis, Airweave, and Alkali. Each profile surfaces team size, founding year, location, and open roles when their careers page is publicly scrapable. The Sp25 cohort skews toward AI / ML, Dev Tools, and Healthcare — common patterns we see in this batch. Recurring tags across these companies: AI, Artificial Intelligence, B2B, Developer Tools, SaaS. The directory's filter UI accepts any of them as a query. Geographically, the Sp25 batch we have leans toward San Francisco, London, and New York City, with the rest spread across remote-first teams and other hubs. and the listing refreshes whenever the scrape runs, so changes propagate without a manual edit.

Acolite

AI Native Commercial Insurance Broker

Artificial IntelligenceInsuranceOperations

Real-time AI Compliance for Medical Documentation

Health TechB2BCompliance

AI Agents to win denied health insurance claims.

The open-source context retrieval layer for agents

The smarter way to estimate steel.

B2BDesign ToolsAI Assistant

A dual-arm robot built for physical AI.

Artificial IntelligenceHardwareRobotics

Open source, agentic knowledge bases for all of humanity's knowledge.

The agentic system of action for hotel groups and management companies

Artificial IntelligenceB2B

Software to monitor, control, and optimize data centers.

Enterprise SoftwareCloud ComputingMonitoring

Voice AI That Won't Get You Sued

Faster builds, zero effort.

Developer ToolsInfrastructure

Gigascale Nanomanufacturing

Hard Tech3D PrintingSemiconductors

The agentic operating system for modern system integrators.

Generative AISaaSProductivity

AI agents for insurance claims operations

Environments for Long Horizon Tool Use

Reinforcement Learning

Creator marketing that scales like paid ads

MarketingAdvertisingCreator Economy

AIOpsArtificial IntelligenceData Labeling

The authentication framework for TypeScript

Developer ToolsSecurityOpen Source

Let your agent build dashboards and reporting.

B2BAnalyticsData Visualization

AI-powered code security

DevSecOpsMachine LearningCybersecurity

The perpetual sandbox platform

Artificial IntelligenceDeveloper ToolsCloud Computing

Build and share mobile apps in seconds

Test, monitor, and improve your voice and chat AI agents

The AI-Native Consumer + Plaintiff Law Firm

Artificial IntelligenceConsumerB2B

Your AI Chief of Staff

B2BWorkflow AutomationProductivity

Robots for the inspection and maintenance of data centers

Artificial IntelligenceHard TechHardware

Life sciences instrument and reagent manufacturing

BiotechManufacturingAI

All-In-One AI Growth Partner. Built for Trades.

Artificial IntelligenceB2BHome Services

The data gateway for agents.

Developer ToolsSaaSEnterprise Software

Building reinforcement learning environments

Artificial IntelligenceReinforcement LearningData Labeling

Commercial alternative to the Deep Space Network

Hard TechHardwareSaaS

Autonomous security testing for web apps, APIs, cloud, and AI systems

The first AI mortgage lender

FintechReal EstateConsumer

Grammarly for Math ✏️

AI-Enhanced LearningDeveloper ToolsEducation

Deep research on autopilot

Artificial IntelligenceDeveloper ToolsAI

chrt is a logistics platform for time-critical shipping

Autonomous ShippingLogisticsHealthcare

Artificial IntelligenceReinforcement LearningB2B

AI Revenue Platform for Post-Acute Care

Build governed AI agents on your own data, without code

Artificial IntelligenceSalesMarketing

Turn scattered data into one platform for decision-making

Developer ToolsSaaSB2B

Modernizing the police workflow.

Artificial IntelligenceGovTechComputer Vision

The agentic CRM for blue-collar services

AI coworker for Accountants

AI Agents for Security Operations Teams

SaaSComplianceSecurity

The AI Associate for Litigation Lawyers

Give every agent a cloud desktop

AI-powered code review platform

Make real life a video game

AI agents for web testing

Artificial IntelligenceDeveloper ToolsB2B

The AI Operator for Financial Services

Custom models trained on your data

Artificial IntelligenceDeveloper ToolsAI

AI-native operating system for vehicle fleet management

LogisticsTransportationOperations

Open Jobs —

Team 2

Founded 2025

Foundation Industries

We supply hard tech companies with critical components.

ManufacturingIndustrial

Product Native Models

Reinforcement LearningB2BAI

RWE Generation in minutes

Artificial IntelligenceHealth TechB2B

Personal AI healthcare agent, powered by clinical and wearable data.

AI Physics Engine to replace simulations and prototypes

Artificial IntelligenceHard TechHardware

Agentic AI Security and Governance

Artificial IntelligenceDeveloper ToolsSecurity

Vertical AI for highly-regulated manufacturing

SaaSManufacturingAerospace

Conversational robots for physical businesses.

Turn complex documents into AI-ready data

DocumentsArtificial IntelligenceDeveloper Tools

The fastest & most scalable graph-vector database on the market

Developer ToolsOpen SourceInfrastructure

AI-powered operating system for trucking companies.

Understand your users beyond the numbers

Artificial IntelligenceDeveloper ToolsAnalytics

AI native meeting platform

Artificial IntelligenceB2BCustomer Success

AI Driven EPC - Weld Fabrication Contractor

The open-source context layer for data agents

Specialized AI for Critical Industries

AIOpsMachine LearningReinforcement Learning

Automate anything on the web.

Simulation Engine for Benchmarking AI Products

Developer ToolsGenerative AIMachine Learning

We automate your entire product development lifecycle.

Artificial IntelligenceProductivityTeam Collaboration

AI manager for physical stores

GroceryComputer VisionRetail

High Quality Coding & Agentic Data for AI labs

Artificial IntelligenceReinforcement LearningData Science

The data layer for scientific research

Organizational Superintelligence

Turn website workflows into reliable APIs

Function Health for Europe

TelehealthDigital HealthHealth & Wellness

AI Digital Workers for Supply Chain

B2BManufacturingSupply Chain

AI native meeting platform

B2BCustomer SuccessSales

Industrial Robots that Learn and Operate Like Humans

The operating system for the 100x Engineering Team

Artificial IntelligenceSaaSProductivity

Autonomous Security Agents

AI native accounting firm

Experiment tracking for training ML models

AIOpsDeveloper ToolsMachine Learning

AI financial auditors

Artificial IntelligenceAutomation

AI workers for Skilled Nursing and Senior Living Operations

Software tool for designing robots and machines

RoboticsManufacturingAI

Unified Agent Infrastructure

Artificial IntelligenceInfrastructure

Open Source Analytics Agent

AnalyticsOpen SourceAI

ConsumerSocial MediaSocial

Automatically write and update internal docs with every code commit.

Realtime Sales Copilot

SalesSales EnablementAI

Open Jobs —

Team 5

Founded 2025

Notus Autonomous Systems

Arbitrary size interference resistant drone swarms using EHF radios

RoboticsDrones3D Printing

AI employees that automate medical operations for clinics.

AI for Field Inspection Reports

A personal EA in your iMessage

Artificial IntelligenceAI Assistant

Managed GPU-accelerated Spark + SQL at 2x speed and half the cost

Developer ToolsAnalyticsBig Data

Multi-document processing for your risk teams, AI agents, pipelines

DocumentsArtificial IntelligenceFinance

Design a chip in minutes

Transforming healthcare operations with AI agents

Artificial IntelligenceB2BHealthcare

Accelerating data analysis for research

Artificial IntelligenceDeveloper ToolsData Science

Scaling engine for PostgreSQL

AI-Powered Optical Consulting & Software

Hard TechHardwareMachine Learning

Open-source agents to build predictive ML models from a prompt

Machine LearningData ScienceAI

Efficient and compact power supply for AI hardware

Hard TechHardwareEnergy

Deploy AI Agents with a Single API Call

Developer ToolsInfrastructure

We help you get compliant while you focus on your business.

Hands off QA via intelligent browser agents.

24/7 Global Stock Exchange

FintechMarketplaceTrading

AI Mobile App Quality Assurance Tester

Artificial IntelligenceB2BAI

AI-Native Mortgage Broker

FintechConsumer FinanceAI

Training gyms for computer use and software engineering work

Streamlining Data Capture to Report Creation for Heavy Industries

SaaSEnterprise SoftwareAI

Reinforcement learning as a service

Your Agentic Trading Desk — Building the next era of agentic…

AI + human review to solve data cleaning - accessible via API or Excel

InvestingData EngineeringAPIs

Open source platform to build AI agent workflows

Intelligence Infrastructure on People and Entities

B2BEnterprise SoftwareInfrastructure

Artificial IntelligenceDeveloper ToolsB2B

AI agents that help you understand your customers' needs

B2BDesignConsumer Products

Real-world data for multimodal and embodied AI

Artificial IntelligenceMarketplaceRobotics

Open Jobs —

Team 2

Founded 2025

Sygaldry Technologies

quantum-accelerated AI servers

Agentic AI platform for Pharma GTM teams

Artificial IntelligenceBiotechHealthcare

Your new AI-powered math tutor.

Artificial IntelligenceEducationConsumer

Alfi - your group chat with social skills to bring friends closer

Artificial IntelligenceConsumerSocial

Frontier models for critical domains

The Robot Learning Company

The infrastructure that robot intelligence is built and deployed on.

Machine LearningRobotics

Program verification so even your systems engineers can vibecode

Specialized AI for Every Job

Artificial IntelligenceReinforcement LearningB2B

AI-Native IP Enforcement Agent

Vertical AI agents running B2B outbound on autopilot, with human SDRs

AI-optimized ticket resale

Encrypted AI with verifiable privacy

Artificial IntelligenceDeveloper ToolsSecurity

The school for a post-agi world.

Artificial IntelligenceEducationConsumer

Valuemate automates real estate appraisals with AI

Open-source semi-humanoid dev kit → home data → autonomy → 20h/wk

Cursor for Lawyers. Agentic AI in MS Office.

Industrial data layer for robotics training

RoboticsManufacturingData Engineering

Say it and it's done. Voice is the new OS

Secure internal apps. Built by AI in seconds. Powered by your data.

Discover & Build AI Chatbots

Play the latest games in your browser with no downloads

Artificial IntelligenceConsumerGaming

The voice interface replacing your keyboard

Artificial IntelligenceConsumerProductivity

AI tutor for each student.

AI-Enhanced LearningArtificial IntelligenceEducation

AI-powered robotics for scientific lab automation.

Artificial IntelligenceRobotic Process AutomationRobotics

Open Jobs —

Team 5

Founded 2025

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Frequently asked questions

What is the YC Sp25 batch?

Sp25 is the Y Combinator batch code for the Spring 2025 cohort. Companies joining a YC batch go through a 3-month program in California and demo their product at the end. techstartupslist.com indexes 146 tech startups from this batch.

How many companies are in YC Sp25?

Our index currently tracks 146 active tech startups from the YC Sp25 batch. New companies appear here automatically when our daily scraper finds them; companies that shut down are flagged inactive and hidden from listings.

Which companies graduated from YC Sp25?

Among the Sp25 companies indexed here: Acolite, Adentris, and Aegis, and 143 more on this page. Click any profile for category, team size, founding year, and open roles.

Where can I find open jobs at YC Sp25 startups?

Open roles from indexed Sp25 companies appear on our /jobs page, aggregated alongside roles from other indexed startups. Each role links directly to the company's official application page.

How often is the YC Sp25 page updated?

Automated scrapers refresh this page daily. The last index update was 2026-07-17. Inactive companies fall out of the count automatically — we don't keep dead listings live.

YC Sp25 Startups

About YC Sp25

Five standout startups, five open roles, every Monday

Frequently asked questions