Founders Directory LogoFounders Directory

Discover the next generation of startups.

A curated directory of high-growth companies backed by the world's most prestigious venture capital firms.

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DrChrono logo

DrChrono

YCombinator

The essential platform for modern medical practices and patients.

DrChrono develops the essential platform and services for modern medical practices to make care more informed, more interactive, and more personalized. The open platform powers telehealth, electronic health record (EHR), practice management, medical billing, and revenue cycle solutions for physicians and patients, and is fully extensible via a robust API and marketplace of applications and services. The platform is used by thousands of physicians and millions of patients, and is facilitating millions of patient appointments and is processing billions of dollars in medical billing. For more information about DrChrono, visit www.drchrono.com

San FranciscoY Combinator LogoWinter 2011AcquiredHealthcareTelemedicineAPISan Francisco
Drip logo

Drip

YCombinator

Never miss a lead

drip finds the leads, sends first messages, follows up, and books meetings autonomously. Every conversation syncs for your team.

San FranciscoY Combinator LogoSpring 2026ActiveB2BRecruitingMessagingSales EnablementSan Francisco
Drip Capital logo

Drip Capital

YCombinator

Digital trade finance and B2B commerce company

Drip is a financial technology company building modern infrastructure to make trade finance and B2B commerce easy and accessible for small businesses worldwide. Its AI native, predictive underwriting, and processing engine streamlines credit assessment and automates end-to-end transaction workflows. To date, Drip has facilitated more than $8 billion in cross-border trade for 11,000 businesses across 60 countries. Working to close the $1.8 trillion global trade finance gap, Drip enables small and midsize businesses to trade with confidence across borders. The company has built a strong partner ecosystem — including leading capital providers such as Barclays, TD Bank, and the IFC, as well as logistics firms, insurance brokers, and B2B invoicing platforms — to expand distribution and impact. Drip is backed by global investors including Accel, Sequoia, Wing VC, Sumitomo Mitsui Banking Corporation, GMO Payments, TD Bank, and Y Combinator.

IndiaY Combinator LogoSummer 2015ActiveFintech
Dropbox logo

Dropbox

YCombinator

Backup and share files in the cloud.

Dropbox is building the world’s first smart workspace. Back in 2007, making work better for people meant designing a simpler way to keep files in sync. Today, it means designing products that reduce busywork so you can focus on the work that matters. Most “productivity tools” get in your way. They constantly ping, distract, and disrupt your team’s flow, so you spend your days switching between apps and tracking down feedback. It’s busywork, not the meaningful stuff. We want to change this. We believe there’s a more enlightened way to work. Dropbox helps people be organized, stay focused, and get in sync with their teams.

San FranciscoY Combinator LogoSummer 2007PublicSan Francisco
Duranium logo

Duranium

YCombinator

Reshoring critical metal production

China and Russia control the world’s critical minerals. We can produce Titanium, Magnesium, Aluminum, Zirconium & Hafnium in the U.S. more profitably than any existing process, and carbon neutrally via co-production. Carbochlorination is the primary process for producing critical metals like titanium, hafnium, and zirconium, and was once the standard for magnesium. The problem: conventional carbochlorination relies on purchasing carbon feedstocks, wastes valuable byproducts, and is highly CO₂-intensive. Duranium changes this with a novel reactor that recycles CO₂ emissions back into feedstock (CO) while generating a valuable co-product (bleaching agents). This closed loop slashes emissions and delivers Chinese-level metal pricing without subsidies — unlocking the full potential of carbochlorination for U.S. critical mineral production.

San FranciscoY Combinator LogoSummer 2025ActiveManufacturingAdvanced MaterialsClimateTechSan Francisco
Dyspatch logo

Dyspatch

YCombinator

AI Email Production - Emails on brand, guaranteed to work, fast.

Dyspatch is an AI-powered communications platform that transforms how teams build and manage transactional email at scale. Our platform uses AI to accelerate email creation — from generating and refining content to automating localization across 300+ locales — so your Product, Marketing, and CRM teams can ship polished, dynamic emails without touching code or waiting on developers. A centralized hub for creation, approval, and publishing, Dyspatch connects directly to your existing cloud email provider or messaging service. Upload your templates in minutes, and let AI handle the heavy lifting: optimizing copy, personalizing at scale, and streamlining the entire review-to-send workflow. Built for teams that move fast. No devs required.

Victoria, CanadaY Combinator LogoWinter 2014ActiveSaaSB2B
Earendil Robotics logo

Earendil Robotics

YCombinator

Drone swarm defence at a small-unit level

Earendil Robotics builds cUAS solutions for the modern warfighter, enabling effective air defence at the small-unit level. We deliver spotting, engaging, and destroying capabilities through advanced sensors, autonomous interceptors, and integrated systems. Our product lineup covers every stage of the kill chain, complemented by the Drone Warfare Academy that trains soldiers to eliminate enemy drone threats in contested environments. Backed by worldwide frontline combat experience, we equip units with combat-proven tools to counter evolving aerial threats.

San FranciscoY Combinator LogoSummer 2026ActiveDronesSwarm RoboticsARSan Francisco
EasyPost logo

EasyPost

YCombinator

The shipping infrastructure of the internet.

EasyPost is the missing API that makes it quick and painless to integrate shipping into your application. Some of the biggest names in retail rely on EasyPost to ship faster, smarter and cheaper. We manage the headaches involved with dated carrier technology so our customers can focus on what makes their business great. Integrate once with EasyPost and seamlessly add carriers, generate shipping labels, track packages in near real-time and insure your shipments. EasyPost is growing fast! Check out our jobs page and join the excitement: https://www.easypost.com/jobs

San FranciscoY Combinator LogoSummer 2013ActiveLogisticsSupply ChainSan Francisco
eBrandvalue logo

eBrandvalue

YCombinator

Real-time Nielsen ratings for Brands.Accelerate marketing and product…

eBrandValue, Inc. is a Mountain View, CA-based company that acts as a BI platform for brands and leverages social data to forecast sales and provide competitive intelligence. Its unique proprietary algorithm essentially captures consumer behaviour and brand affinities using social data to identify the most effective profile changing events. 

 eBrandValue has become a de facto forecaster of sales in many industries by accurately predicting and reporting the real-time sales, ROI, brand performance and market share-impact of brands in comparison to all of their competitors. These predictions are confirmed by Nielsen’s ScanTrack, which once again emphasises the catalytic impact of next-stage intelligent social media analysis to sales strategy.
 eBrandValue enables brands to measure the efficacy and ROI of their events and campaigns, and to track and analyse influencers within their industry. It also provides Meme-Based Netnographic Segmentation which reveals the dimensions that define a brand and encapsulate the nature of social media postings in the sector, thus allowing brands to track their positioning vis-à-vis competition in real-time.
 eBrandValue recently graduated from Y Combinator’s Winter’15 batch, and received press coverage at VentureBeat. Additionally, eBrandValue was also showcased as part of the Start Up Academy during Cannes Lions as one of the ten globally selected startups that are currently disrupting the marketing/agency business.

San FranciscoY Combinator LogoWinter 2015ActiveAnalyticsSocialSan Francisco
ED1TH logo

ED1TH

YCombinator

Jarvis IRL

A personal AI HUD that lives in a pair of glasses. Think Jarvis. It reads your email, runs your calendar and puts directions in your eye. 25 grams, no cameras, all day.

San FranciscoY Combinator LogoSpring 2026ActiveHardwareConsumerAI AssistantSan Francisco
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