With countless influencers on Twitter, it’s hard to choose just a few to highlight. But that didn’t stop us from trying. Below are a few of the technology innovators, retail pioneers, nonprofit champions and boss ladies we’ve been following in the Twitterverse.

Reshema Savjani, Founder, Girls Who Code

Sheryl Sandberg, COO of Facebook and best-selling author

Arianna Huffington, Founder, The Huffington Post

Angela Ahrendts, Senior Vice President, Retail and Online Stores, Apple

Susan Wojcicki, CEO, YouTube

Ekaterina Walter, content marketing guru and best-selling author

Debra Sterling, Founder and CEO, GoldieBlox

Ingrid Vanderveldt, Founder, @EBW2020

Maria Shriver, Founder, The ShriverReport

Dyllan McGee, Founder and Executive Producer, MAKERS

Did we miss a favorite Twitter influencer of yours? Want to share with the rest of the Inner Circle? Drop me an email at csullivan@napco.com and I’ll be sure to include them in a follow-up list!