There are approximately 317 million active Twitter users worldwide as of January. With such a large number, it can be tough to figure out the right people to follow. But don’t worry, we’ve done the hard work for you. We’ve pulled together a list of 15 inspiring Twitter accounts for any aspiring entrepreneur.

Related: 4 Reasons to Love Twitter

From Richard Branson to Randi Zuckerberg, these 15 successful people share everything from motivational quotes to business ideas to some of their favorite books, podcasts and tech gadgets.

Check out 15 inspirational Twitter accounts every entrepreneur should follow.

Richard Branson, @richardbranson

Billionaire founder of Virgin Group, entrepreneur, investor and philanthropist Richard Branson has a Twitter account worth following. With more than 10.5 million followers, Branson shares daily motivation, his views on current events and other interesting news covering everything from entrepreneurship to mental health to literature. You can feel his optimism through his posts, and his tweets are bound to lift your mood and have you feeling inspired.

Over half a century in business, I’ve learned to see shifts in success and forks in the road as huge opportunities: https://t.co/5Qs0M7nXT2 pic.twitter.com/u3K03s4Ple

— Richard Branson (@richardbranson) May 3, 2017

Kevin Rose, @kevinrose

Kevin Rose

I tried Pilates for 6months, loved it, great ab work. My instructor in has just launched a home video Give it a try: https://t.co/x4sLWVfu9d

— Kevin Rose ? (@kevinrose) February 9, 2017

Steve Case, @stevecase

Steve Case

The Best Jobs for Your Personality Type https://t.co/sztEZSwFDt “Everyone has different strengths, weaknesses & traits” pic.twitter.com/Bxoiq64stk

— Steve Case (@SteveCase) May 2, 2017

Tim O’Reilley, @timoreilley

Founder and CEO of O’Reilly Media, Tim O’Reilly‘s twitter account is a source for interesting studies, news and novel ideas. To his 1.98 million followers, the media mogul shares thought-provoking articles on topics covering everything from politics to technology to big business. He also shares some of his favorite audiobooks, books, quotes, facts and more.

Great explainer of key economics concepts and their role in innovation. Must read! https://t.co/wV6BpKD1Gr via @stratechery

— Tim O’Reilly (@timoreilly) April 20, 2017

Randi Zuckerberg, @randizuckerberg

Even with a famous brother, Randi Zuckerberg has made her own footprint on the world. Zuckerberg is the CEO and founder of Zuckerberg Media, as well as a powerful voice for women. On Twitter she engages and sparks conversations with her followers, introduces them to other entrepreneurs and shares helpful business lessons, all while showing her bubbly and optimistic personality.

LIKE or DISLIKE? Post Intelligence: an AI social media coach helps you craft the best messages and send them at the best moment

— Randi Zuckerberg (@randizuckerberg) April 26, 2017

Lewis Howes, @lewishowes

If you’re seeking constant inspiration and some midday pick-me-ups, look no further. Former pro athlete, bestselling author, entrepreneur and podcast host, Lewis Howes‘s Twitter is a treasure trove of inspiration for aspiring entrepreneurs. With more than 122,000 followers, he shares daily quotes and tips on how to be your best self, as well as his latest podcast episodes where he interviews business stars from Gary Vaynerchuk to Sara Blakely.

Your Life Is Your Message To The World. Make Sure It’s Inspiring https://t.co/akazVxQHIu pic.twitter.com/p1xAbYyEBh

— Lewis Howes (@LewisHowes) May 3, 2017

Steve Blank, @sgblank

A top Silicon Valley entrepreneur and professor at Stanford, Berkeley and Columbia, join the 181,000 people following the brilliant mind of Steve Blank. Perfect for tech entrepreneurs and startups, Blank’s Twitter is chock full of posts about venture capital, product market fit, enterprise software, creativity, career advice and more. Blank hits pretty much every topic relevant to aspiring and established tech entrepreneurs.

There should be a lemon law for bad VCs https://t.co/17LMDv1Mrt

— steve blank (@sgblank) April 28, 2017

Guy Kawasaki, @guykawasaki

Guy Kawasaki

Sheryl Sandberg opens up and reveals the raw emotions of grieving. https://t.co/RBF9jLpQbh pic.twitter.com/PkNsYKd2CV

— Guy Kawasaki (@GuyKawasaki) April 30, 2017

Caterina Fake, @caterina

Innovator and serial entrepreneur, Caterina Fake has founded and co-founded a number of companies including Flickr, Hunch and more. Suffice to say, she knows a thing or two about getting started. And on Twitter, she shares with her 118,000 followers inspirational interviews, her views on education, her favorite books, highlights from conferences and much more. She’s an activist and a voice for women, and every week shares her TOI (things of interest).

TOI from this week (i.e. Things of Interest) https://t.co/y86AbGCMR6 pic.twitter.com/BVDjwCK4dL

— Caterina Fake (@Caterina) March 17, 2017

Kelly Hoey, @jkhoey

Perhaps one of the lesser known Twitter accounts, but none the less inspiring, Kelly Hoey‘s posts are bound to motivate you. She’s the author of the book Build Your Dream Network, a motivational speaker and an angel investor. From interview tips to relationship building strategies, Hoey’s account will teach you how to build your personal brand and grow your network.

Turning a “cold” email into a warm job interview: @jessicapeltz mastered this in her post-college job search https://t.co/UcL9wD9JgI #BYDN pic.twitter.com/Al9NpOnTTK

— Kelly Hoey (@jkhoey) May 1, 2017

Grant Cardone, @grantcardone

As an author, motivational speaker, real estate investor and sales expert, there’s much to be learned from Grant Cardone. Small-business tips, sales, real estate, health, success, leadership — he pretty much covers all of the bases. With more than 401,000 followers, Cardone’s posts provide motivation, free resources, quick tips and more.

Never walk away from a good thing in hopes of a better thing, make the good thing a better thing by bringing another level. #careeradvice

— Grant Cardone (@GrantCardone) May 3, 2017

Gerard Adams, @iamgerardadams

Gerard Adams, co-founder of Elite Daily, entrepreneur, investor and “millennial mentor,” is a source for inspiration. If you’re feeling uninspired, stuck or simply in a bad mood, just turn to his Twitter account. Adams posts daily motivational lines that can turn your day around and get you back on track.

Don’t be afraid to get back up and try again, love again, live again, and to dream again. Don’t let a hard lesson harden your heart.

— Gerard Adams (@IAMGerardAdams) April 21, 2017

Barbara Corcoran, @barbaracorcoran

Entrepreneur, investor, speaker, author and one of the stars of Shark Tank, Barbara Corcoran‘s Twitter is one of the best resources for entrepreneurs. From bouncing back from failure to having the right mindset to discovering your passion — Corcoran wants to help her 600,000 followers to reach their entrepreneurial dreams.

The essence of a great entrepreneur is the ability to bounce back… from anything!

— Barbara Corcoran (@BarbaraCorcoran) May 1, 2017

Gretchen Rubin, @gretchenrubin

Bestselling author, public speaker and happiness advocate, Gretchen Rubin‘s optimistic approach to life and business is portrayed through her Twitter account, which is followed by more than 130,000 people. Rubin shares how to develop good habits, her creativity hacks, relaxation exercises and other strategies to help boost your happiness levels.

Trying to keep a habit? Try the strategy of inconvenience. Change your surroundings, not yourself. #BetterThanBefore

— Gretchen Rubin (@gretchenrubin) May 2, 2017

Sallie Krawcheck, @salliekrawcheck

Sallie Krawcheck

How to Build a Great Company: Insights for Start-Up CEOs (and Everyone Else) https://t.co/7oHaxeLM0V

— Sallie Krawcheck (@SallieKrawcheck) April 27, 2017