Try: investor:"y combinator"

Browse by Industries

Browse by Region

23andMe

27 Sound Entertainment

2NgageU Inc.

360logica software testing services

4th Main Software Inc

Abroad101

Academia.edu

Achieve Internet

Actsoup Networks

addmired.com

Adjix

AirBed & Breakfast

AirMe

Aligned Products & Technologies

AlikeListcom

Allied Consultants

AlwaysOn

Anonymous

AppDiscover.com

Applico

ApplyGo.com

appssavvy

Arkayne

Arkotech Corporation

ArtsApp

ASMALLWORLD

ATechs

Audacious Inquiry, LLC

Aurus IT Solutions

Avvo

Babajob.com

bayt.com

BeenVerified

Behance

Berkeley and Stclair Inc

Best Travel Deals

BestThinking

Betterment

BiggerPockets, Inc.

BigMouth Productions

BiiCast, Inc.

Bitmain Studios Inc

Bivi

Bizmore

Bleeding Arts, LLC

Blellow

BlipBoard

BlitzLocal

Blue Frog Gaming

Blue Green Ventures

Book Bros. Group, LLC

BookMesh

Boxi.com

Brewpot LLC

BroadSpire Inc

Bulldog Solutions

Buqoo

Business Opputunity / Web 2.0

Busy Bee Advertising

BusyEvent | Tools for Event Management

buzzd

CafeMom

CaptainU

CareCloud

CareerCore, Inc.

CareerCore, Inc.

Causes

Center'd

Centric Media

Centrl Inc.

ceoworld.biz

CHI.MP

Chomp, Inc.

CitizenGroove

CityIT Solutions Pvt. Ltd.

Clearspring

Clickmash

ClicksMetro Online Pvt LTd

Cloudize, Inc.

Coaches Fraternity

Cold Brew Labs

Colleaguester

Come Recommended

Communispace

CommuniTeach

Company X

Compass Labs

Conduit Labs

Confidential

Confidential

Confidential

Confidential

Confidential

Confidential - Stealth Mode

Covestor

Cozi

Crushpad

D2see

Dawdle

Dead Meat

DeliverySupermarket.com

DeNA Global, Inc.

Design Management RUFFNEKK

deviantART

Diary.com

ditty.fm

DOGMA STUDIOS

dotblu, inc.

Dubit LTD

DYMPOL, Inc.

EasyAutoSales.com

EatingVine

eBuddy

Ecarder

ECM Circle, Inc

Efectividads Social Ads

EGG HAUS, Inc.

ekaabo GmbH

Emerging Internet Start Up

Enjyn

Ethico

Etsy

EventVue

Everywun

Experience Project

ezLearnezLearn

Facebook

Famigo

Fanplicity

FanShout

FeedTheBull

FightLaunch.com

FinancialOS, Inc.

Fission Strategy

Fluther

FoodieLink

For Sale Buy Green

Free Microsoft Points

FreeCause, Inc.

FreezeCrowd, Inc.

Freshman Fund

FriendFeed

FriendFinder Networks

Frog Industry

FUHU, Inc.

Funji, Inc

FutureFridays

GameLayers

GetGlue.com

GiveAndDate.com

Global artist agency

Going

GoodCrush

Gravity College Inc

GreenMango

Grockit

Grooveshark.com

Groupspeak

Grows Up

Gruvie

Hampshire St Experiment

Hangout Industries

hayStocked

Heekya

Helptwits

Heysan!

hi5

HiDef Web Solutions LLC.

Honk

Hotlist

HourVille

HowAboutWe.Com

HubSpot

Huddler

Hygea

IKaru Projects

iliketotallyloveit

ImageShack Corporation

iMakeMovie.com

imeem

iminlikewithyou

imleagues

Indylist

Infinitely Beta

Innity

Inside Lacrosse

Internacio

InternCircle.com

Internet Startup

InternetSparring.com

InTotality

InvestP2P

Invisible Sun Media

Invitacia

Involver

Inzic Solutions (Pvt) Limited

iOffer

iScripts.com

isleptthroughclass.com

Issuu

itemCASETR.com

J-Squared Media

Jack The Donkey Inc

Jamglue

JNJ Mobile

Just Landed

Kaasu Info Ventures

kaboodle

KarmaKorn

Kashless, Inc.

KGB

kgb web

KickApps

kioosk

Knexus

Knowmore

Kongregate

Kyte

lady luck creative

Large Animal Games

LearnHub

LearnVest

Lesson Nine GmbH (Babbel.com)

Lightspeed Venture - Entrepreneur-In-Residence

Likematter

ListBite

ListenLogic, LLC

LiveFyre

Loanio, Inc.,

Local Motors

LocaModa

LogicBoxes

LOLapps

LOLplaying

Loopt

LoveCinema

LoyaltyMatch

LuvitLive

Macroaxis Inc

Manawa Networks

MapWith.Us

Margarita Ramirez Design Studio

Mashable

Me.dium

MeeBee

Meemi.com

Meetlie

Meetup

Mendeley

Mergeskills

Mindbloom

MindGames

Mixtt, Inc.

MobGold

Mobibolt, Inc.

MobileGuard

MobiRumor

MochiMedia

Modea

MojoPages

Monadik

Moon Shot Media LLC

Move Ventures

Mozes

Mr Tweet / Discoverio

MUNI-55

MyBeanstalk, INC.

MyGameMug

myJambi

NashaRussia

NavigatingCancer.com

NearbyThis, Inc.

NeighborPal

Netvibes, Inc.

Newcology

nextstop.com

Ning

NOM

Noteswap.com

OculusAI

OdylFarm

omodello

oneforty

OneRecovery

Onirico Sistemas

Online Promotions Group

Opentumblr

Opinmind, Inc

Paddle

Parichute

PawLinks, LLC

Peanut Labs Media

Peerz

Pelago

Penthouse Internet

People Capital

perceptu

Pet Holdings, Inc.

Phosphate

PhotoZen

Physicians Rx Network

Pipio

Pixable

Playfire.com

Playlist

playNOLA Sports & Social

Plurk

Pocket Tales

Policypitch, LLC

Polyvore

Posh Society

Posterous, Inc

Postling

PostRank

Predictium LLC

Primed Ventures

ProductWiki Inc.

Project Athena

Pulse of the People, LLC

Pure Focus, LLC

Q Digital Studio

Quarkis Co. Ltd.

Qvinci Software

r!bb!t

Rapleaf

Raspee

Ratingworld.com

rec.fm

RelationshipSecure

Rent the Runway

Rentomodo

Repower@Home (Alliance for Climate Protection)

resu.me

RetireHub.com

Revenue Architects

ReviewMyWeb.com

RGlobe

RhinoGATOR

Riot Games, Inc.

RJB

RMG

RobustLinks

Rock the Sandman

Rockstar Music, Inc.

RockYou, Inc.

RossQA

SachMani

Santilga

Sarlex Partners

Say Hi!

Say-Hey-Hey

SayHired

SB Nation

Schoology

ScienceStage.com - The universal online portal for

Sciosys

Scribd

Scribnia

SEARCH LABS, LTD

Securesphere Consulting

Seesmic

seeyu.com

Shape Up The Nation

Shareaholic Inc

Sharefam.com

ShareThis

Sharethrough

Shhh....

Shhh....

ShoeDazzle.com Inc

Showzey

ShuffleChat

SignalFive

SilvanTech

Single-Woman.TV

Singleplatform

Sketchl TV

Skyfire

Sleep.FM

Smartdate

Smartoons

Snooth

Social Concepts

Social Over

SocialDynamics

SocialMedia

Socialroster

SOCIALtality

Socialthing!

SocialVision Inc

Sokanu

Sole Envie, Inc.

Soversa LLC

Sparkcloud

Sparkler.TV

Spectra LLC

SpeedDate.com

Spirofrog

Splicefeed

sportlog

Spreaker

StaffingForce

Stateless Creations

Stealth

Stealth

Stealth

Stealth

Stealth

Stealth Gaming Startup

Stealth Mode Startup

Stealth SF Startup

stealth startup

Stealth-mode start-up

Stella & Dot

Stimuli Lab

Strings

StyledOn

Supercool School

Swingly

syncables

SynthaSite

Tag Me In

Tagged

Targeted Technology Solutions

TBD

Team Of Leaders

TechSmart Solutions Group

TechStars Boston 2010 Company

Tekriti Software

Tenant Txt

textaurant, Inc.

The Gaming Krib

The Growth Group

the JAR Group

The Nashville Stars

The Texas Producer

The Village

TheCaringSpace.com

TheHumanCreativityProject

Thomas-co Media

Tickle Industries

Tickle Spot Magazine

Tingz, Inc.

Tiny Pictures

Togetherville

TokBox

Touted

Treilla

Triangle Design

Trulia

Trusty's

Tumblr

TuneyFish Inc.

Twitter

UNBOUND Technologies

Unigo, LLC

UpToUs

Urban Apt Group

uShow

Veedow.com

Vendisys

VendorRate

Venture Incubator S.A.

Vibio Inc

VideoBloom, Inc.

Virtual Organization Management Institute

VisualCV, Inc.

ViViDpink Design Studios

Vivoneco srl

Viximo

VolunteerBIG

Wander Mobile LLC

Wattzy

Web development

WebJuice

Webs

WeGoWeGo Inc

Wellnet

Whooligan

WhyDoWork Inc.

WidgetBox

Wikinvest

Wildscreen.TV ::new generation quality broadcast::

Wipus

wis.dm

Wise Eyes inc.

Woosha

Workstreamer

WV Labs

Xobni

Yoomba

Yoono

You Plus

YOUBICWITUS

Zaang Inc

Zecco

Zimple, Inc.

Zimride, Inc.

Zinch

Zivity

Zonline Sports Inc.

Zoosk

Zuno

Zunzoo

Zynga

[212]MEDIA, LLC

Hmm... are we missing a start-up? Let us know.