Nov 19, 2025 11:59:11 PM

Companies


Showing 3601-3625 of 5661 companies
YC W14
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PipelineDB

Open-source time-series data analytics extension for PostgreSQL

PipelineDB is an open-source PostgreSQL extension that enables realtime reporting use cases by continuously aggregating large streams of time series data down into summary data. It shines the most at larger scales, where storing lots of raw time-series data and aggregating it over and over again becomes inefficient. The amount of value that PipelineDB adds is directly proportional to the amount of continuous aggregation that an analytics use case can benefit from. PipelineDB should be used for analytics use cases that only require summary data, like realtime reporting dashboards. PipelineDB is not a good fit for exploratory analytics on siloed datasets.

YC S24
Pipeshift logo

Pipeshift

Modular Orchestration Platform for Open Source AI

Pipeshift is a modular orchestration platform for building with open-source AI components — embeddings, vector databases, LLMs, vision models and audio models — across any cloud or on-prem. Enterprises get to deploy their AI workloads in production faster and more reliably. Additionally, as we see more model and hardware architectures coming in the market, Pipeshift future-proofs the infrastructure investments by offering flexibility through their modular MLOps stack that allows enterprises to bring down their GPU infrastructure costs without any additional engineering efforts on their end.

YC S19
Pippin / Rent the Backyard logo

Pippin / Rent the Backyard

Autonomous homebuilding factory for the $1.7 trillion housing crisis.

Pippin is building the autonomous homebuilding factory for the $1.7 trillion housing crisis. Building a home requires human labor to: measure, cut, lift, drill, paint, and attach. This labor is used for a building’s: structure, vapor barriers, windows, insulation, siding, roofing, electrical, plumbing, fixtures, appliances, and cabinetry. The construction industry solves this complex variety of tasks by dividing them among tiny companies of specialized artisans. Few lessons learned are shared and the industry has had no growth in labor productivity since 1947. Building technology, methods, and materials have advanced and the constraints limiting home manufacturing can now be removed. Regulations have changed to allow small and simple accessory dwelling units (a.k.a. ADUs or backyard homes), making it easier to mass-produce housing. Pippin started in the ADU market with its brand "Rent the Backyard" and will build duplexes, quadplexes, and eventually large apartment buildings.

YC W24
Piramidal logo

Piramidal

Foundation Model for the Brain

Understand & control neural syntax.

YC S21
Pirouette Pharma logo

Pirouette Pharma

We make injections as easy as pushing a button!

At Pirouette, we have developed a low-profile, disk-shaped, rugged injection device with a patient-centric focus on affordability, portability, and usability. The patented device, based on extensive patient input, is designed to make administering an injection as easy as pushing a button. This allows individuals with limited or no training to easily and intuitively perform an injection on themselves or others.

YC W23
Pirros logo

Pirros

Github for Construction

Pirros is reshaping and revolutionizing how Architecture and Engineering firms manage design details. Our software empowers AECO design professionals (Architects, Engineers, Contractors, and Owners) to streamline their detail management process more effectively, reduce errors, and speed up project delivery. We’re building the system of record for detail management in a $12T+ industry that’s been underserved by technology for too long! About Us Backed by top-tier investors and angels (YC, Funders Club, PlanGrid, Elephant) We’ve just closed our Series A of ~$17 million PROFITABLE, ~$3M ARR and growing revenue at +10% month-over-month 200+ firms using us today, growing 10% MoM, 120% NRR Co-founders both come from structural Engineering, so we have industry experience

YC W17
Pit.AI logo

Pit.AI

Solving intelligence for investment management.

Pit.AI Technologies aims at solving intelligence for investment management. We combine bleeding-edge AI research with powerful computing to automatically mine profitable trading strategies in financial markets. Our proprietary pipeline departs from the standard portfolio optimization paradigm in that it avoids making unrealistic assumptions on how markets behave, and it applies the expressiveness of our AI techniques on large scale data to automatically detect and exploit new sources of market inefficiencies, rather than testing or verifying human-generated trading ideas, intuitions, or forecasting models. We believe that the investment management industry is at the dawn of a new AI-led era where trading idea generation will be automated and cost-effective, management fees will be a thing of the past, and fund managers will no longer be paid for merely showing up.

YC S22
Pivo Technology Inc logo

Pivo Technology Inc

Digital Bank for Freight Carriers in Africa.

Africa has experienced robust macroeconomic growth over the last five years and was the second fastest growing region in 2019 with a GDP of $2.6T, a 3.7% increase on 2018. Nigeria makes up $0.5T, 50% of which comes from Small and Medium Enterprises (SMEs) – a huge number of these operate within large manufacturing supply chains. Starting with Freight Carriers Pivo makes financial services easily accessible for truck owners and truck drivers by providing a bank account, debit card and digital invoicing tools so they can get paid faster and avoid cash flow problems. This will be further augmented by more fundamental financial products such as credit, transaction management, and expense management, to improve their cashflow.

YC S22
Pivot logo

Pivot

Your AI FP&A Analyst

Pivot helps you visualise, analyse and model your company's financial data way faster than Excel.

YC W24
Pivot Robotics logo

Pivot Robotics

AI for Robot Arms in Factories

Pivot Robotics makes AI software for robotic arms that helps manufacturers automate their most labor intensive tasks. We are starting out with the dangerous task of metal grinding and are currently deploying our software on 10+ robots in a cast-iron foundry.

YC S12
Pixate logo

Pixate

Mobile application prototyping. Now part of Google.

Pixate was acquired by Google, Inc. in July 2015. * Pixate was founded in May 2012 with the goal of enabling designers and developers to create beautiful, native mobile apps quickly and easily. Pixate's flagship product, the Pixate Engine for iOS, integrates a CSS-based styling engine, graphics rendering system, and a SVG-subset for supporting scalable vector graphics. The CSS-based stylings can be changed at run-time and can be downloaded and updated on-demand. The Pixate Engine for iOS version 1.0 is currently available for purchase or for trial download at pixate.com. Pixate was a Y-Combinator Summer 2012 participant and raised early funding through a successful Kickstarter campaign in 2012.

YC W12
Pixelapse logo

Pixelapse

Github for designers. We automatically keep track of revisions of…

Pixelapse is the best place to share designs and work together. We build tools to improve the design process and make collaboration easier. Pixelapse simplifies version control and makes it accessible for designers to share and discuss their work with their friends, colleagues and the world.

YC F25
Pixley AI logo

Pixley AI

The first platform where parents & kids can co-create AI cartoon shows

Pixley is revolutionizing early education. No more passive learning: lectures, worksheets, deskwork. Kids don’t just watch content – they create it. With Pixley, any drawing or picture becomes an animated character, and every episode is shaped by the child’s imagination. On the flip side, parents have complete control over what their kids learn. They choose the academic or moral lesson each story teaches, making screen time both safe and educational. For the first time, children and parents have complete control of the media they consume. We’re harnessing brand-new video gen technology that’s set to revolutionize how the world creates and learns. Generating animated, narrative-consistent content from a child’s input in real time demands breakthroughs in generative AI, safety, and personalization – and Pixley has cracked it. The market opportunity is massive. Families already spend billions on streaming and educational media, but the content is one-size-fits-all. By giving kids a true voice in what they watch, while giving parents control, Pixley makes early education personal, fun, and effective. We are college dropouts that have been building together for years, winning several hackathons and working with video gen along the way. We built Pixley after we saw the flood of low-quality, algorithmic AI content and knew that kids and parents deserved better.

YC S21
Plai logo

Plai

Run ads with AI

Plai is the AI advertising tool built for marketing teams and agencies. Thousands of advertisers are using Plai to create Facebook Ads, Google Ads, and TikTok Ads from a ChatGPT prompt. Plai automatically finds your target audience, generates your creative, and launches your ad campaigns like a pro in seconds, no experience required. Whether you need to acquire new leads for your startup, sales for your e-commerce store, or grow your brand, Plai is your super app for marketing.

YC S24
Planbase logo

Planbase

AI workforce management for healthcare

Planbase has everything health clinics need to manage their team in one place: capacity planning, employee scheduling, credentialing and payroll.

YC W17
Plane logo

Plane

#1 easiest-to-use payroll for startups

Plane is an all-in-one people platform for fast-growing teams. We build easy-to-use payroll and compliance tools that help companies go global from day one.

YC S21
Planet A Foods logo

Planet A Foods

Building the next generation food ingredient champion.

Imagine a world without chocolate. Horrifying, right? But the supply of cocoa is endangered and chocolate is as bad as meat for our planet. We make future-proof chocolate using precision fermentation. Doing this, our chocolate is 10x more sustainable and 20% cheaper than conventional chocolate. In order to mimic the organoleptic properties of chocolate (tender, smoothly melting taste release) we are working on the flavor itself but also on replacing the cocoa butter. 55 Mio lbs of chocolate are consumed every day. By 2035 we will substitute a big chunk of it through our sustainable chocolate. In addition, we are working on extending our technology platform to additional ingredients such as palm oil.

YC S17
Plasticity logo

Plasticity

Natural language processing APIs for developers.

Plasticity builds APIs that help developers create human-like natural language interfaces. We believe in a future where computers can actually understand language and communicate.

YC S15
Plate IQ logo

Plate IQ

Automated Accounts Payable

Plate IQ makes accounts payable simple. Automated accounts payable software replaces manual data entry by digitizing your invoices down to the line item, automatically assigning them your proper GL codes, syncing the information to your accounting software, and providing analytics around purchasing. Plate IQ also offers one-click bill pay, inventory, and cloud-based data storage that allows businesses to go paperless.

YC S15
PlateJoy logo

PlateJoy

PlateJoy is building the technology to power disease prevention and…

PlateJoy uses 50 data points about how you eat and live to determine what you should be eating and provides customized meal plans and shopping lists to help you reach your goals. We provide a digital Diabetes Prevention Program, available for free to over 60M covered lives, paid for by insurers.

YC W16
Plato logo

Plato

Plato is the mentorship platform for engineering leaders

Plato turns the company's engineering and product managers into better leaders. We help resolve challenging management situation as they arise, in real-time thanks to video one-on-one conversations, AMAs, and more with experienced technical leaders form Google,Netflix, Lyft, Box, etc.

YC F24
Platus logo

Platus

Instant Legal Infrastructure - Draft, Sign, Notarize & Process

Platus delivers fast, reliable legal infrastructure with a no-code platform and API, designed to support SMBs with instant access to notarization, legal drafting, e-signing, and workflow automations. Our solution removes the high costs and slow processing of traditional legal services, by empowering businesses to seamlessly manage compliance and legal tasks.

YC W21
Platypus logo

Platypus

The Distributed Data Operating System

For Business Operators: Connect & automate processes on top of any data, crazy fast. For Engineering Teams: Connect any data, across any stack, in any format, crazy fast.

YC W15
Platzi logo

Platzi

Latin America's School of Technology

Platzi cracked online education. It teaches courses on design, marketing and programming with a 70% completion rate, to over one million students worldwide. The classes include real-time collaboration among students and industry leaders as teachers. It aims to be the professional home for lifelong learning of advanced skills.

YC F25
Play Health logo

Play Health

Perimenopause health platform redefining women's midlife care

Play Health is a perimenopause health platform redefining midlife care for women.  Despite affecting over 30 million women in the U.S. alone, perimenopause remains one of the most overlooked stages in women’s health. The science is complex, the data is sparse, and most existing solutions are either too generic or too narrow to deliver meaningful insights. Women are left navigating life-altering symptoms with little guidance and few tools built specifically for them. Play Health changes that. We combine personalized tracking, at-home hormone testing, and AI-driven analytics to deliver actionable, data-first insights, and build the most advanced longitudinal dataset in perimenopause to date. This unlocks improved health today and enables the discovery of new diagnostics, therapeutics, and standards of care for tomorrow. Play Health is led by successful, second-time, YC founders Andrea Mazzocchi and Ian Miller, with an exit and a unicorn between them.