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Maci Peterson        

CEO and Co-Founder of "On Second Thought;" Named Essence's "Tech's Newest Innovator" and Washington Business Journal's "40 Under 40"

Maci Peterson is a Millennial entrepreneur and marketing expert. She has been named “Tech’s Newest Innovator” by Essence Magazine, and is a recognized subject-matter expert and advisor on entrepreneurship, innovation and diversity initiatives.

Maci is the co-founder and CEO of On Second Thought, a messaging app whose patented technology lets users take back text messages before they get to the other person’s phone. She has been recognized on Inc Magazine’s “30 Under 30 List” of 2016, and Washington Business Journal’s “40 Under 40 List” of 2015. In addition, Maci has been identified as a rising leader in technology by Revolt TV, and one of the “29 People You Should Know” by BET. Maci began On Second Thought after winning 1st Place in the #StartupOasis pitch competition at South by Southwest in 2014.

Maci’s experience includes years of marketing and business development in the entertainment, media and hospitality industries. She was the founder and editor-in-chief of the former Mwari Magazine, a digital publication for women of the African Diaspora ages 18-24. It was one of the first of its kind, and she grew the circulation to 130,000 readers.

Maci is a member of the Internet Marketing Association’s Women Leaders Group. She was a member of the Founder’s Council at the 1776 Incubator in Washington, D.C., and an alumna of the MindShare Class of 2015. She has been invited to speak at a variety of leadership and business conferences including: South by Southwest, The White House Initiative on HBCUs’ National HBCU Week Conference, Inc Magazine’s GrowCo, IdeaFest and Cox Communications’ Tech Summit.

Speech Topics

The Journey of Raising Money

Maci explains the process of raising money and the many different avenues you can take by incorporating her own experiences of bootstrapping, crowd-funding, investors and pitch competitions into her speech.

Breaking Into the Boys Club of Silicon Valley

At the podium, Maci talks about her journey breaking into a male dominated field and the obstacles she overcame along the way.

Gen-Y Entrepreneurs

In this speech, Maci discusses how the Great Recession impacted our careers and produced a generation of innovative, fearless entrepreneurs.

Building a Business in an Unfamiliar Industry

Maci speaks about her diverse background in marketing, entertainment, hospitality and publishing and discusses how it provided her with a unique skill set that prepared her to start and lead a tech startup.


Maci Peterson Wants to Help You Take Back Your Embarrassing Texts

Have you ever sent a drunken text that you wish you could take back? Or sent a racy text to the wrong person or cussed someone else you wished you hadn't?

On Second Thought: An Innovative Startup to Watch

Hey, On Second Thought (OST) is a mobile messaging app that lets you take back text messages before they get to the other person. Co-Founder Maci Peterson ...

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