Certified Development Professional

Welcome to CDPOnline, where learning is accomplishing your mission.

Scholarships celebrating Jerry Twombly’s 50 years in Development available now!

“Without reservations, I recommend you consider the services of Jerry Twombly and his team at The NonProfit Authority. Their Certified Development Professional program is without a doubt some of the best training available. Why? It works. Do yourself a favor and the organization you serve – take this certification. You will be glad you did.”

D. Clay Perkins, Ph.D
President, Mid-Atlantic Christian University

For 25 years and in three dozen countries, ministry volunteers and professionals have used CDP to meet immediate needs and prepare for long-term impact in their Kingdom work.





CDPOnline makes growing your capacity easy, affordable, and fun!

Dynamic, interactive teaching through video and powerpoints

Application assignments that use your ministry as the example

Personalized feedback from CDP’s team of development experts

Online support & discussion through the Global Development Network

Work at your own pace. Enroll in one course or several at a time.


Scholarships available celebrating Jerry Twombly’s 50 years in Development work.

Contact us today for Scholarship details.


Enroll in CDPOnline Risk Free! We will refund your tuition if you are not satisfied within 14 days of enrolling.

Discover Our Courses

Achieve certification by completing all seven Courses. No set Course schedule or deadlines!

Complete all 7 Courses to become CDP Certified


FREE with Every Course: 1-Year membership to the Global Development Network

Take your training even further with a FREE 1-year membership to the Global Development Network, a dynamic online community of ministry directors, development professionals, volunteers, lay-leaders and other like-minded people furthering the Kingdom of God through nonprofit ministries.

Ready to expand your capacity?

Click the button below to browse our Courses and enroll online.