Who We Serve
We are one of the largest providers of learning experience design, content development, educational technology, and publishing services. We create the highest-quality learning experiences with leading content development companies, higher education organizations, corporations, and publishers.
About our markets
PRE K–12

Adult Learning

Higher Education

Publishing
What We Do
We develop innovative digital and blended learning programs for students of all ages. Our business is built to excel across the spectrum of educational services, including curriculum design, course and content development, and more.
See our services
ContentDevelopment

LearningExperience Design™

CREATIVE

PRODUCTION

PROJECTMANAGEMENT

TECHNOLOGY& INNOVATION
Why Six Red Marbles
We have a long history of innovation, having started as a typesetting company in the 1920s, and we have continually adapted our solutions to match publishing trends since then. Our focus has always been on studying how people of all ages learn and using that knowledge to create world-class, high-quality experiences that keep students interested in learning.
Learn moreWhere You'll Find Us
With offices in Austin, Boston, Brattleboro, Chennai, and Delhi, both our content and our perspective are global. Our team is experienced, dedicated, and knowledgeable. Our process is tried and true. All of this allows us to scale seamlessly without ever sacrificing quality. Want to know more? Let’s talk.
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