About The Endurance Group
The Endurance Group began as an outsourced sales and marketing provider for professional services firms, consultants, and insurance and accounting companies. Founded over 20 years ago with a focus on cold calling, the company has since evolved into a tech-forward consultancy leveraging AI to help clients scale outreach and develop their own AI solutions.
Challenge
The Endurance Group’s traditional method involved deep manual research to create custom sales strategies, reports, and outreach materials for clients. However, these static reports became quickly outdated and required constant updates. As VP Conor Sullivan noted, “After all that work, a fresh news story could arrive and make the entire report outdated.” The process was too slow and inefficient to keep up with clients’ evolving needs.
“I looked for a solution that would use what ChatGPT does, which is synthesizing information, but make it so that it would understand my clients and their prospects, becoming an interactive tool where they could ask questions as they arose, as opposed to creating this one-time static report.”
Conor Sullivan
VP @ The Endurance Group
Solution
After evaluating multiple AI tools, The Endurance Group selected CustomGPT.ai for its ease of use, security features, and flexibility.
“CustomGPT was the one that worked the best. We actually have a lot of fun making the AIs and thinking about how we are going to implement this technology to solve the client’s problem.”
The team rolled out AI assistants using CustomGPT’s no-code platform and persona generator to create client-specific chatbots. These bots were embedded in secure client portals and made it easy to synthesize company information in real time, generate personalized outreach, and eliminate the need for manual updates.
“The persona generator allowed me to really play around with what my clients needed and we used that to create, as well as how easy it was to deploy. We basically created client portals where I could put the chatbot directly into that portal so that a client would be able to access it while maintaining security.”
Results
- 4–5x More Client Outreach: Clients now reach out to 4–5 times more target accounts each week using AI-generated content.
- Improved Employee Satisfaction: Staff now focus on building AI solutions instead of writing static reports, making their work more engaging.
- New Revenue Stream: The Endurance Group now offers CustomGPT.ai implementation services to other companies.
“There are different success rates depending on the clients we work with and who they’re targeting, but I can say the efficiency rates have definitely gone up at least 300%, maybe more. And then on our end, I’d say again, it’s very similar.”
Why it Worked
CustomGPT.ai allowed The Endurance Group to build tailored, secure AI assistants in minutes. By leveraging the platform’s no-code interface, document upload, sitemap integration, and persona tools, the team could rapidly deploy solutions that replaced static reports with interactive, always-updated bots. This not only saved time but made it possible to scale outreach efforts and deliver more value to clients.
“Before, my clients could reasonably only reach out to maybe one target account a week because of the time it took to write relevant blog articles, personalized emails, LinkedIn invites, etc. Now, they can quadruple or quintuple that because your technology makes it so easy to write all of this content that otherwise took a long time.“
Conclusion
With CustomGPT.ai, The Endurance Group significantly boosted its operational efficiency, improved client outcomes, and enhanced internal morale. The company now plays a key role as a CustomGPT.ai implementation partner, empowering others to experience the same benefits of AI-powered sales enablement.
“We know how to use the technology, and we can help clients from many different industries solve the pain points that they need.”
