Jeremy Yamaguchi

An easy way to market locally with mail

Capture group moments with friends

Anti-procrastination app for Mac to break bad online habits

Never get a parking ticket again , now also on Android

Learn to sing with bite-sized sessions everyday

Launch + manage your own native ads on Reddit

Turn your audio into easy to use transcripts

Mailchimp for physical mail

AI-powered meeting scheduler, now more accurate than a human

An entire week of incredible food for $99

Co-founder of reddit

Partner at Founders Fund

Snapchat for postcards

On-demand delivery of car rentals; drop off anywhere

Free morale meter for teams using Slack

Performance tracking software for the Millennial workforce

Amazon Prime for laundry & dry cleaning

Find creative ways to close the deals in your pipeline

See and feel through your users' eyes

Two new heart-rate enabled smartwatches + 3G wearable

The law changed. Invest $100+ in startups you love.

Adblocker meets Pinterest to replace ads with inspiration

Embed any web content (YouTube, polls, etc.) in your slides

Register to vote in 30 seconds by scanning your ID 🇺🇸

Tinder for interracial dating

Open source interface to reinforcement learning tasks

Humans make connections. Sometimes they grow, stay, collapse

The first live streaming fitness platform

Browse all emails, SMSs, chat, tweets to & from your company

Mixpanel for advertising

Quickly create a 5-touchpoint email campaign

Easy beautiful logging in the cloud

Custom printed with your logo. Start with just 25 bags.

Tesla's latest, wicked fast, electric SUV

Optimizely and Lawn Love

Build web applications, with your data, without code

Find and frame your favorite albums

Stories from the Y Combinator world

Turnkey software for medical cannabis dispensaries

Smart, minimalist money management.

List your favorite health products, get paid when people buy

On-demand catering - SF/Bay Area

Help Reddit create a series about entrepreneurs

Crowd-voting platform, running a test for SF Election

Dark testing made simple

Clara is a virtual employee that schedules meetings for you.

Direct P2P microlending

No card fees & no chargeback payment API

Win turf on your watch as you run or walk

100x faster video transcoding by the MPEG-DASH creators