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
We’ve developed thousands of textbooks and interactive learning programs for prek-12. Learn More

Adult Learning
We leverage learning sciences' best practices to build adult learning content that professionals connect with. Learn More

Higher Education
We’ve built thousands of innovative online courses and designed custom interactive media for higher ed. Learn More

Publishing
We partner with some of the largest publishers in the world to ensure quality content. Learn More

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
Our content team produces materials that can align with any educational frameworks or standards. Learn More

LearningExperience Design™
Our LXD approach puts the learner at the center of all content and curriculum we create. Learn More

CREATIVE
We create high-quality products and ensure they always provide meaningful experiences for learners. Learn More

PRODUCTION
Our team is well versed in all aspects of both print and digital production and can tackle projects big and small. Learn More

PROJECTMANAGEMENT
We keep the trains running on time with an experienced and process-driven project management team. Learn More

TECHNOLOGY& INNOVATION
To engage modern students, we’re constantly pushing the educational content envelope through tech and innovation. Learn More

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.

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Where 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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