Try: investor:"y combinator"

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"CM" (Consumer Stealth)

10gen

15desks, Inc

23andMe

27 Sound Entertainment

360logica software testing services

3MD

7digital

9thDown

AbbyAve

Abnexo Information Technology

Abroad101

AC Lion

AcademixDirect, Inc.

Achieve Internet

Acquia

AcroLite Interactive

Actsoup Networks

Adap.tv

AdaptedMind

Adchemy

AdoMado.com

AirBed & Breakfast

Alice.com

Aligned Products & Technologies

AlleyCorp

aloopster

AltScale

Alvazan, Inc

American Dietary Institute

AmericanToGo

Anthony Ettinger

Apartment Therapy

Appbistro

Appcelerator

Applicationville

Applico

ApplyGo.com

AppNowGo!

appssavvy

Aprigo

Apsona

Apture

Apture

Arkayne

Arkotech Corporation

Artha42 Technology Solutions Pvt. Ltd

Artlog.com

Ask.com Partner Networks

Askboth

ATechs

Audacious Inquiry, LLC

Audax Health Solutions

Aurus IT Solutions

Avecora

Avvo

AWSMBX

AWVScan

AxiomBG

B!CODE

B.T.I. Creations LLC and Productions

Babajob.com

Backbase

BackType

Bappio

bayt.com

BeenVerified

Behance

Bellerose Web Media Services

BestThinking

Betterment

BIG Folio

BiggerPockets, Inc.

Bitmain Studios Inc

Bivi

bizzydesk.com

Bleeding Arts, LLC

BlinkFactory, Inc

BlipBoard

Blist

Blue Green Ventures

BookMesh

Boxi.com

Boxwish

Bragin IT Solutions Inc.

Brand Yourself

Brewpot LLC

Bridgetree, Inc.

Bright Hub

Brilig

Briteclick, Inc.

Britenote

BroadSpire Inc

Brushfire Media Group

Bulldog Solutions

Buqoo

Business Catalyst

Business Ecosystems LLC

Business Opputunity / Web 2.0

BusinessElite

Buzapp Inc

buzzd

BuzzPal - The World Is Your Party

CafeMom

CakePC

CallFire

CaptainU

Car Overload

Career Group

CareerCore, Inc.

CareerCore, Inc.

CareerMesh

CareerNumbers

Careersters

Cellbi Software

Center'd

Central Desktop, Inc

Centric Media

Centrro, Inc.

ceoworld.biz

Change.org

Changepond Technologies

Chat Badge

CheckedTwice

Checkster

CHI.MP

Chomp, Inc.

CitizenGroove

CityCam.tv

CityIT Solutions Pvt. Ltd.

Clearspring

Clickmash

ClicksMetro Online Pvt LTd

Clipik

Cloud Sherpas

CloudBack

Coaches Fraternity

Cog Tree, LLC

Cold Brew Labs

CollaborativeHealth LLC

Colleaguester

CollegePeaks

Communispace

CommuniTeach

Compass Labs

ConcepSys Solutions LLC

Concepta Systems, LLC

Conduit

Conduit Labs

Confidential

Confidential

Confidential

Confidential

Confidential

Consolidated Independent

Consumer Stealth Mode Startup

ConsumerTrack, Inc.

Convert

Covestor

Cozi

Crave

Crawdout

Creatio

Crosspollinate

Crowd Science

CROWDPARK

Crushpad

Dabbleboard

DashMob

Dashwire, Inc.

DataFeedscripts.net

Datasisar

Dawdle

Daylife

Dead Meat

DECA

Defined Clarity

Delivery Labs

DeliverySupermarket.com

Design Management RUFFNEKK

Designing Studios

Destination Rewards

Deveel

deviantART

Diary.com

Digg

Digital Artist Management

Digital Canvas

DigitalAdvisor

DISQUS

Distimo

Divvyshot, Inc

DocStoc

DoctorsTalk, inc.

Domdex

DotNutz Solutions

Drupal Professionals

dusoto

Dynamical Software, Inc.

Earth Aid

Earth.org

EasyAutoSales.com

EatItalian.com

eBuddy

ECM Circle, Inc

Ecolect, Inc

eemoh

Efectividads Social Ads

eGrove Systems Pvt Ltd

ekaabo GmbH

Elation EMR

Eleven Learning

Emerging Internet Start Up

Empower Business

EnergySavvy.com

Enformed

Engago Technologies Ltd.

Engine Yard Inc.

English Platform

Enjyn

EPB Consulting

Ethico

Etsy

Eventbrite

EventVue

Evernote

EverS

Everywun

EvoApp

expenio

Experience Project

Explorence

ExtraHop Networks, Inc.

Exvo.com BV

EZClassSites.com

ezLearnezLearn

Facebook

Factor X Solutions Inc

Famigo

Fancy

FanDome

Fanplicity

FanShout

Fantazzle Fantasy Sports Games

fanVocate

Fashion in Business

FashionStake

FastSpring

FeedTheBull

FightLaunch.com

FillAnyPdf .com

FinancialOS, Inc.

Fission Strategy

Fizzy Software

Float Us

Fluther

Flutter

Folloh

FoodieLink

For Sale Buy Green

Fora

Forio Business Simulations

Fosdev

FossaTec Business Systems

FossaTec Business Systems

Free Microsoft Points

FreeCause, Inc.

FreezeCrowd, Inc.

Freshman Fund

Fridge Door

FriendFeed

fring

Frog Industry

FUHU, Inc.

Fusion Inc.

FusionCharts Team

Fuzzedout

Fuzzyshot

g

Gamby Studios

GameLayers

GeckoGo

Generationwhy

GENWI

Glassdoor.com

Global artist agency

Gnip

Go Smart Solutions, LLC

GoBid, Inc.

Going

Goobzy

GoodCrush

Goodfellaz

Goodmail Systems

GoTime

GOTRIbal

GrandOffice

Grasshopper

Grayson Labs

GreenMango

Greenzu.com

Grockit

Grooveshark.com

Group Commerce

GroupSpaces

Groupspeak

Grupo Empresarial DEINEM SA de CV

gtrot

GuideSpark, Inc.

Habit Industries Inc.

Hampshire St Experiment

Hatch Registry Group LLC

hayStocked

HealthCentral

Hed 2 Hed Consulting

Heekya

HelpMyCash

Helptwits

Heyzap

hi5

HireClix

HiveFire, Inc

Honk

Hook

Hotlist

HourVille

HowAboutWe.Com

HubSpot

HuddleHub

Huddler

I Press It

Icarian Records

IdeaMama

iGOMobi

iiNTENSE Media

IKaru Projects

iliketotallyloveit

ILLUMINZ

ImageShack Corporation

iMakeMovie.com

iminlikewithyou

Impact

Indus Net Technologies

Inkling Markets

Innoengineer

Input Ladder

Internacio

InternCircle.com

Internet Startup

InternetSparring.com

InTotality

Inversion Solutions LLC

Invisible Sun Media

Invitacia

Inzic Solutions (Pvt) Limited

iOffer

IQTell.com, LLC

iResume

iSeeCars.com

isleptthroughclass.com

Issuu

IT Apps LLC

itemCASETR.com

Jack The Donkey Inc

Jaman

Jamglue

JamLegend

Jelli

JIBE

Jimdo GmbH

JNJ Mobile

JobGrades.com

Juice Analytics

Just Landed

Jutera Inc

Kaasu Info Ventures

Kaboodle

kaboodle

kaChing Group Inc.

KarmaKorn

Kashless, Inc.

Kayak

Kembrel.com

Key Ingredient

KGB

kgb web

kikin Inc

KikScore

KillYourCube.com

kioosk

Kiwiluv

Klickable Inc.

Knowband

Knowmore

KODA

KONARCHS LLC

Kongregate

Konkuri

Kontera

Kosmix

Kron-Service

Lab Zero Innovations Inc.

Labortopia

LeapFILE

LearnHub

Lesson Nine GmbH (Babbel.com)

Let's Do This

Licensing Planet, Inc.

Lift Media

Lightspeed Venture - Entrepreneur-In-Residence

Lijit Networks, Inc.

Like.com

Link Logik Tech Technologies

LinkLarry

ListBite

ListenLogic, LLC

Livefyre

LiveIntent

LiveOut

Local Motors

LocalBlox

LocaModa

LogicBoxes

LOLapps

LongTail Video

Loud3r Inc

LoveCinema

LoyaltyMatch

LuvitLive

Macroaxis Inc

Maker Studios

Manawa Networks

Manzama.com

Maria Health

Mashable

Mashape

Mashery

Matradee, Inc

Me!Box Media

Media Service Provider Ltd

MeeBee

Meemi.com

Meetcast

Meetlie

Meetup

Meltwater Group

Memeo

Memrise

Mendeley

Mergeskills

metaio

Metaplace, Inc.

Metaweb

MGDevice

MindSmack.com

MindTouch

Mint

Mint Digital, LLC

Mixbook

Mixpanel

Mixtt, Inc.

MobGold

Mobibolt, Inc.

MobiRumor

MochiMedia

Modea

MojoPages

Momentum Design Lab

Mona Lisa Style

Moolah

Move Ventures

Mr Tweet / Discoverio

Mumboe

MUNI-55

Music Mobile Global

MyBeanstalk, INC.

MyGameMug

myGOVERN

myJambi

MyPangea

Naanu

Nan Gabriel Studio, LLC

NashaRussia

NationalBLS, the Buyer Listing Service

NavigatingCancer.com

NearbyThis, Inc.

NeighborPal

Netvibes, Inc.

NEW YORK MEDIA

Newcology

News Distribution Network Inc

NewsGator

nextstop.com

Neybor

NICHE technologies, Inc.

Nityo Infotech

NOLOH

NOM

Ntroduction

nuSage

oDesk

OKIA Recruiting Services

Olapic

OMGPOP

Omnetic Inc.

One Block Off the Grid

Onirico Sistemas

Online Promotions Group

Openfilm, LLC

Openomy

Operative

Opinmind, Inc

OPT

OptioLogic Technologies Pvt Ltd

Oritor

OS3

Outbrain

Outside.in

Panoverse

Paper Culture

Paradigm Analytics

Pareto Networks

Parichute

PathBuilder, Inc.

PawLinks, LLC

PayDivvy

Peerz

People Capital

perceptu

Percussion Software

Pet Holdings, Inc.

Philadelphia Financial Planning Firm

Phosphate

PhotoZen

Physicians Rx Network

PigLit

Pigmata Media Inc.

Pikimal

Pipio

Pique

Plancast

Playfire.com

Playfirst

PlayHaven

Playlist

PlumWillow

Plurk

Policypitch, LLC

Poll Everywhere

Polyvore

Posh Society

PositiveZero

Postabon Inc

Posterous, Inc

Postling

PostRank

PowerHouse dynamics

PrankDial LLC

Predictify

Primed Ventures

ProductWiki Inc.

Project Athena

Proonfile

Provayo

psd2cssonline.com

Pulse of the People, LLC

Punchbowl Software

PurePhoto

PWRG (B2b Stealth)

Q Digital Studio

Qgia LC

QRky Ltd.

Quirky

Quotav8.com

Racked Hosting LLC

Ramamia

RapidFeeds.com

Rapleaf

Ratingworld.com

Real Girls Media

Realty Robot

Recipe Puppy

Red Beacon

redcanary.ca

Redfin

RentJuice

Repfolio

RescueTime, Inc

Resorcetek Systems Pvt Ltd

ResuWe

RetireHub.com

Revenue Architects

ReverbNation

Rhino Cloud Computing Corp.

Riot Games, Inc.

RiotDesign

RiseSmart Inc

RMG

Roblox

RobustLinks

RockinSEO

RockYou, Inc.

RooftopComedy

Roomorama

RossQA

RTI

Rubicon Project

Rype

S&S Ventures - The Sami Group

SaaSease, Inc

SachMani

SaleCamel.com

Sandbox Industries

Santilga

SapnaSolutions

SayHired

SB Nation

Schoology

SchoolRack

ScienceStage.com - The universal online portal for

Sciosys

Scoop St.

Scrapblog

Scribd

Scribnia

SEARCH LABS, LTD

SeatGeek

See logo

Seesmic

Sendside Networks

Shape Up The Nation

Shape Up The Nation

Shareaholic Inc

Sharefam.com

ShareThis

Sharethrough

Shindig

Shiva Media

ShoeDazzle.com Inc

Shop It To Me

Shopfront.com

Shoptastic

ShowClix, Inc.

Showzey

Shutl

SignalFive

Simple Web Works

Simply Hired

Simpz

SiteJabber

sivvle

SkillSlate

SkillSurge Learning Resources

Skydeck

Skyfire

Skyhook Wireless

Sleep.FM

SlideShare

Smarkets

Smartdate

Smartoons

SnappCloud

Snaptalent

Social Concepts

social-media

SocialDynamics

SocialFeet

SocialMedia

SocialMedia.com

socialnews.biz

Socialroster

SOCIALtality

Socialthing!

Soft Gravity Inc.

Soft Illuminations, Inc.

Sokanu

SolutionSet

some name

Songkick

Sophari

Soup.io

Spacekarma

Sparkart

Sparkcloud

Speak 2B Free

Speek

SpinStitch

Splicefeed

sportlog

Sports Enterprises LLC

Spreaker

Sproost, Inc.

Sprout

SproutBox

Sprowtt

Staff One Inc

Stampfeet

Startup Guru

StartupAgents

Startuply

StartUpNetwork.com, Inc.

Stateless Creations

Stealth

Stealth

Stealth

Stealth Live Video Startup

Stealth Mode Wellness 2.0 Startup

Stealth SF Startup

Stealth Start Up

Stealth Video Startup

Stealth-mode start-up

Stimuli Lab

StockTwits

StudentsMove

stuffiminto.com, Incorporated

StumbleUpon

Subtle Disruption

Success Wizard, Inc.

SugarSync, Inc.

Summer Workation

Supercool School

Surfmark

SurveyMonkey

SwapBeats, Inc.

Swingly

Swipht

Synacor

syncables

SynthaSite

Tag Me In

Tagged

Tapulous

Tarams Software Technologies Pvt Ltd

TargetSpot, Inc.

TBD

Team Of Leaders

TeamHomeField.com

TechCrunch

TechSmart Solutions Group

TechStars Boston 2010 Company

techunot inc

Tekriti Software

Telepop

Temperature@lert

Tenant Txt

Textingly

The Branding Spot

The Gaming Krib

The Growth Group

the JAR Group

The Real Talker

The Sage Guide

The Touronomist

The Village

TheCaringSpace.com

TheChange

theDealist

TheHumanCreativityProject

Therify Corporation

Think Studios

Thomas-co Media

Thrive

thumbble

Ticket Text

TicketLeap

Tickle Industries

TickrTalk

Tingz, Inc.

TinkrBox

tipjoy

Tippr

to be discussed

Togetherville

ToITL

TokBox

Tomnica, Inc.

Tonic.com

TonightsOutfit

Top 20 Realty

Tracsion

Treilla

Tripbase.com

TripIt

Triple Point Pte Ltd

True Knowledge

Trulia

Trumpet Technologies

truste

Trusty's

Tsavo Group

TubeMogul

Tumblr

Tumri, Inc

TuneyFish Inc.

Tupalo.com

Twig

Twilio Inc.

Twitter

Twiva

Uloop

Unigo, LLC

unitechange.org

updtr

UpToUs

Urban Spoils

Usa Jobs

Usability.Pro

UsDailySports.com

UserMojo

uShow

Ustream.tv

Vacation Rental Partner

ValueAppeal

Veer West LLC

Velvet View

VendorRate

Venture Incubator S.A.

Veoh

Vibio Inc

Video Suspects, Inc.

Viewzi

Viridus, Inc.

Virtual Organization Management Institute

Virvo Web Development

Visible.net, Inc.

Visual X

VisualCV, Inc.

Vivoneco srl

Viximo

VolunteerBIG

Voxy

Wander Mobile LLC

Wanderfly

WeArePhotographers.com

Weatherista, Inc.

Web development

WebGreek Inc.

WebMySystems Ltd

Webnode

Webs

Weebly

WeGoWeGo Inc

WeLike, LLC

Wellnet

Western Leap, LLC

Wetpaint

Wheeldown, Inc.

Whole Travel

Whooligan

WidgetBox

Wiggio

Wikia

Wikifeeds

Wikinvest

Wildscreen.TV ::new generation quality broadcast::

winzz

Wipus

wis.dm

wiseri

Wize, Inc.

Wolter Group

Woosha

Work Market

Work4 Labs

Workday

workingName

Workstreamer

Workyourcareer.com

WV Labs

Xoopit

Yardbarker

Yola Inc.

Yoono

You Plus

YOUBICWITUS

Youcansee

youngStartup Ventures

Your Mapper

YourTourBook.com

ySage Technologies

YZ Groups

Zaang Inc

Zazzle

Zecco

Zenbe

Zendesk

Zero13 Group

Zilok.com/ Zi Group SA

Zimride, Inc.

Zinch

Zindagi

ZipZapPlay Inc.

Zivity

ZocDoc

Zoosk

zozi

zsaqa

zumeo

Zuno

Zunzoo

Zyglobe

Zynga

Zynx Health, Inc.

Zyoin

[212]MEDIA, LLC

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