
About Greenstone Financial Group
Our financial advisors specialize in retirement income planning and execution, legacy and philanthropic strategies, investment management and risk mitigation- life, disability, and extended care insurance needs. No matter where you are on your financial journey, we’re here to provide professional advice and guidance, allowing you to move forward with clarity and confidence. Reach out for a free consultation today!
Meet Our Team
Duluth Office

Carl Thomas
- Title
Financial Advisor
- State(s) Licensed
- AK , MN , ND , WI
- Website
- https://connect.thrivent.com/carl-thomas
- Phone
- 907-750-6777

Rickie Derks
- Title
Associate Financial Advisor
- State(s) Licensed
- MI , MN , MO , WI
- Location
Duluth Office
- Website
- https://connect.thrivent.com/rickie-derks
- Phone
- 660-951-8787
- Fax
877-200-8778

Todd Rengo
RICP®, CLTC®
- Title
Financial Advisor
- State(s) Licensed
- AK , CO , FL , IA , MI , MN , MO , OR , WI
- Location
Duluth & Grand Rapids Offices
- Website
- https://connect.thrivent.com/todd-rengo
- Phone
- 218-625-4011
- Fax
877-200-8778

Joseph Weise
- Title
Financial Associate
- State(s) Licensed
- AK , MI , MN
- Location
Ely Office
- Website
- https://connect.thrivent.com/joseph-weise
- Phone
- 218-235-8818

Paul Spindler
- Title
Financial Associate
- State(s) Licensed
- AK , CO , MN , WI
- Location
Duluth & Grand Rapids Offices
- Website
- https://connect.thrivent.com/paul-spindler
- Phone
- 218-625-4010