Interesting Startups Twitter List by Antonella Stellacci on Listorious

Threadless

Threadless is a community-based tee shirt company that prints awesome designs created and chosen by you!

1,847,007 followers | Follow

TweetDeck

TweetDeck is an app that brings more flexibility and insight to power users. Questions? https://t.co/XOH17KoJ

1,648,101 followers | Follow

Dropbox

Always have your stuff, wherever you are.

700,268 followers | Follow

Klout

The standard measure of online influence. Do you have Klout? -Tweets from http://klout.com/#/klout/list/14897. For support please go to http://support.klout.com

442,953 followers | Follow

Seesmic

Seesmic Social & Seesmic CRM news here. For tips, please check out @SeesmicTips or http://help.seesmic.com.

436,425 followers | Follow

foursquare

foursquare helps you explore the world around you. Meet up with friends, discover new places, and save money with Specials! Questions/support: @4sqSupport

423,402 followers | Follow

Tumblr

Follow the world's creators. Questions? http://tumblr.com/help

269,230 followers | Follow

GetGlue

GetGlue is a social network for entertainment. Check-in & rate things to discover new favorites, see what your friends are into, get stickers & win free stuff.

200,270 followers | Follow

Foodspotting

Find and recommend dishes, not just restaurants. Visit our site and download our app!

161,563 followers | Follow

evernote

Remember everything with the help of the computers, phones and tablets you use daily.

146,699 followers | Follow

Vlingo

Vlingo is your very own Virtual Assistant. Simply speak to Vlingo and it will help you get more done, faster and easier than before.

109,957 followers | Follow

CoTweet

CoTweet - How Business Gets Social.

97,912 followers | Follow

Square, Inc.

Accept payments. Everywhere.

95,504 followers | Follow

posterous

Share smarter with Posterous Spaces. Easily share anything publicly or privately by web, email, or mobile app. For support please visit help.posterous.com

80,855 followers | Follow

chris dixon

Founder & investor

54,031 followers | Follow

bitly

Save, share & discover links across the web with bitly.

35,631 followers | Follow

Instapaper

Official Twitter account for the Instapaper read-stuff-later bookmarking service and iPhone app.

35,078 followers | Follow

Gist

Connected People Change History. All your contacts in one place updated with the latest news everywhere you need it.

34,303 followers | Follow

RunKeeper

Track, measure, and improve your fitness. http://www.runkeeper.com

32,174 followers | Follow

HubSpot Platform

Welcome to our new digs to support and chat with app devs who want to build on the @HubSpot platform. (What is @HubSpot? Watch: http://bit.ly/p8ktrz)

29,115 followers | Follow

Occipital

Occipital helps you capture and share everything in sight with @360Panorama for iPhone, iPad, iPod Touch and Android. Where we're going, we don't need roads.

25,527 followers | Follow

atebits

Apps for iPhone, iPad and Mac. // @lorenb

24,948 followers | Follow

Google Mobile Ads

Official Google Mobile Ads & AdMob Twitter Account

22,620 followers | Follow

feedly

Feed your mind. A fast and stylish way to read and share the content of your favorite sites. Chrome, Firefox, iOS and Android.

17,027 followers | Follow

SocialToo

SocialToo - Your companion to the Social Web. Tools, Apps, and Scripts that complement your social experience.

16,036 followers | Follow

Brizzly

Brizzly is a social media reader. You put your tweets and Facebook messages in it.

15,458 followers | Follow

hunch

Hunch makes great recommendations by learning your tastes

14,838 followers | Follow

David Cancel

Chief Product Officer at @HubSpot. Previously founded @Performable, @Ghostery, @Lookery and @Compete.

13,641 followers | Follow

Shazam

Discover, explore and share more music, TV shows and brands you love. Experience more.

11,875 followers | Follow

Swaylo

Who do you Sway?

11,798 followers | Follow

DISQUS

Disqus is the world's favorite discussion platform. Check us out all over the web. We'll help you @disqushelp.

11,050 followers | Follow

appolicious

Find mobile apps you'll love (iPhone, iPad, & Android)

9,033 followers | Follow

SimpleGeo

We make it easy for developers to create location-aware applications.

8,479 followers | Follow

Mobclix

The Only Real-Time Bidding Mobile Ad Exchange- where the best apps meet the best ads. Mobile Developers- we want to help you monetize your apps!

8,343 followers | Follow

Twitpay

Companies and non-profits use Twitpay's service to power easy, secure social commerce. Also follow @TwitpayConfirm so we can confirm transactions using Twitpay.

7,613 followers | Follow

Jack Welde

Founder and CEO of @Smartling. Entrepreneur, technologist, pilot. Increase your global reach with Smartling. Pro and crowdsource translations.

4,361 followers | Follow

Eric Marcoullier

Co-founder OneTrueFan, Gnip, MyBlogLog and IGN.com. Loves live music, pop culture, building things. Father. Husband. Geek.

4,272 followers | Follow

The Echo Nest

We help everyone build the future of music.

4,272 followers | Follow

FanFeedr

The best in sports team news and information.

3,744 followers | Follow

Jumptap

News, updates and discussions from Jumptap, the leader in targeted mobile advertising.

3,549 followers | Follow

Bump Technologies

Bump(TM) makes connecting as simple as bumping two phones together.

3,316 followers | Follow

Mashery

All things API management, services + strategy. Tweets by @joannpeach, @ingarbrown, and @tiffmashes. Ops availability @masheryops. Developer fun @masherydev

3,016 followers | Follow

Distimo

We Know App Stores

2,895 followers | Follow

Mplayit.com

Your home for Android, BlackBerry, iPhone & Mobile games and apps. Get the best app recommendations. http://blog.mplayit.com

2,764 followers | Follow

TLISTS

TLISTS is a real-time media company.

2,387 followers | Follow

CardStar, Inc.

Go Cardless with CardStar™

1,848 followers | Follow

Ty Ahmad-Taylor

Great products used by lots of people frequently.

1,299 followers | Follow

litl

Ready to hit the reset button on personal computing?

1,289 followers | Follow

CitySourced

CitySourced is a Real Time Civic Engagement Platform. It's Your Community!

1,007 followers | Follow

Skyhook Wireless

Worldwide leader in location positioning, context and intelligence.

937 followers | Follow

80legs

Most powerful web crawling service ever!

681 followers | Follow

Dave Waldman

SVP Bus Dev, Mandalay Digital Group

600 followers | Follow

Sayagle

Sayagle users have exclusive access to our SuperDeals and our cash reward program gives users 5% cash back simply for shopping with Sayagle merchants.

585 followers | Follow