Knowledge Delivery Systems (KDS) raised $6 million in a Series D funding round from growth equity firm Edison Ventures. The company will use the funding to accelerate its sales, marketing, and product development activities, according to Digital Journal.

KDS Chief Executive Officer Alvin Crawford said: "Knowledge Delivery Systems is excited to work with Edison Ventures and welcomes them on the board of directors. Our stellar team is committed to providing the best professional learning solutions in the education industry, and we selected the Edison team as a partner because of their track record as one of the leading education technology investors in the country. KDS is now poised to partner with educators to dramatically improve the effectiveness of PD, resulting in increased student achievement."

The New York-based educational firm's software allows 50 teachers at a time to undergo week-long online education, trainings, and certifications while working in their own school districts. The cloud-based software is now being used in Philadephia, Chicago, and New Mexico, VentureBeat said.

Launched in 2001, KDS presently employs 50 people in its team. While it began as a webinar program, its main focus now is on teachers' online education, the report detailed.