Client Testimonials may or may not identify individuals by name and company name, due to organizational restrictions, but all testimonials are on file and will be shared upon request and with the written approval of any individual endorser and client company.

"Just wanted to let you know I've been promoted to Corporate SVP and reinstated as a Corporate Officer. You played a big part in helping me turn things around. Thanks for your candor and damn good advice."

Corporate Senior Vice President & Corporate Officer ∣ Global 50 Telecommunications Company

"I want to share our experience and satisfaction with kellerconsulting™ for over 15 years. One of the most important factors in our business can be summed up in a quote from Benjamin Franklin: "Without continual growth and progress, such words as improvement, achievement, and success have no meaning." This has been and continues to be the foundation of the relationship between Air Liquide and kellerconsulting™. We have enjoyed many engagements focusing on the principles of Continuous Improvement, Integration, People Skills, and Operational Excellence."

Throughout the years, Graden Keller has been our trusted thought partner and external sounding board for many projects and organizational changes. He is valued as a true friend, not only to the staff, but also to the company. Graden has a special way of opening up the hearts and minds of those who are willing to learn. Those who will listen and see are greatly rewarded. Graden makes the process fun; all along keeping us aligned with business acumen, and having clear metrics for success.

I personally subscribe to many of the principles of success outlined in the book GOOD TO GREAT, and it has been a pleasure working with Graden and his remarkable staff to realize those principles in building a world-class team of experts and engineers to drive our industrial complex. I look forward to our future of both personal and business growth opportunities."

Charles Neely Harper, Air Liquide ∣ Global Director, Smart Manufacturing & Infrastructure ∣ Chief Technologist, Smart Innovation Operations ∣ International Group Fellow ∣ Large Industries World Business Line - Worldwide Industrial Management

"Not very many make a difference in people's lives and clearly you do. Our company is much better for it and this is so appreciated. On a personal note, you have and always help me be a better father to my children (which means everything to me), a better spouse to my wife, a better friend to my friends and hopefully a better leader to our company."

President ∣ North American Packaging, Transportation & Distribution Company

"As an organization and numerous of us, individually, are much better as managers, leaders and people because of our relationship with you. Your influence on the organization has produced lasting benefits, and I see your guidance and advice as an integral part of our growth as an organization and as an executive and management team. Our work with you has been transformational.

You have taught us that oftentimes in business tough decisions need to be faced and made, and honest communication should be shared. We greatly appreciate and value our engagement with you over the years. Your work has made a difference in our actions. We will continue to praise your services and recommend you to others. Your contribution has been extremely beneficial to the development of the organization and to me as a leader."

Chief Executive, State River Authority

"As I think back to the beginning of our journey toward Operational Excellence through Continuous Improvement, it is amazing to realize how far we’ve come in such a short time. You have a talent and unique approach to bringing us all together."

Vice President ∣ North American Energy Transportation, Storage & Processing Company

"The group is a buzz following the session this week. I think they really feel like they are empowered and can make things happen. I thought it turned out great. I could tell that some worked last night. This is starting to get a bit frightening, as well as powerful. This is truly a great experience for me to watch such change occur - and cooperatively. When people have a desire to make a difference the power they have is significant."

Senior Vice President ∣ North American Energy Transportation, Storage & Processing Company

"The managers are trusting each other more and working in unison to accomplish bigger things. This would simply not have happened last year at this time. Another example would be in the way the entire team is dealing with personnel issues. A year ago we hung on to poor performers. The entire culture around this area has changed. Our employees are applauding this transformation! It’s exciting to see all of this happening. We still have some growing to do, but we are really on the cusp of becoming a learning organization."

HR Director ∣ Governmental Entity

"Your group made our division team-building event the best we have ever had. I continue to hear positive comments months later. I am sure the lessons learned from that day played a big part in our receiving the President's Award for Teamwork. I look forward to more opportunities for us to collaborate."

CIO ∣ Global Energy Transportation and Storage Company

"Facilitation of our session series was nothing short of excellent! Your group knows how to set the stage and to quickly determine the overall nature of the audience. You, in particular, use your skills throughout the sessions to glean quality participation and trust from the participants. You are unassuming and more of an observer, but you apply your skills to help the participants understand and learn from the experiences of the session. Definitely worthwhile."

CFO ∣ GLOBAL 50 Banking & Financial Services Company

"As you know, we get regular visits from the federal government and receive ongoing scrutiny from many other regulatory/scientific organizations to evaluate our performance. The following is an excerpt from the last report we received from the most important of all our external oversight agencies: "As has been the case during the previous annual reviews, there is evidence in all areas of activities of many best practices being implemented at a level of excellence that is in many cases setting the standard for the industry. Sampling and testing performance is outstanding, field monitoring results are excellent, technology integration is particularly effective, environmental activities are now outstanding, and quality control improvements have been considerable over the past year. The company is particularly open on all issues and focused on continuous improvement in all areas. The workforce is truly outstanding." These sorts of statements are the outcome of the work you and your staff have been doing with us. Our client was so proud when this report came out."

Division Manager ∣ Global Scientific Research & Development Company

"I have heard nothing but positive feedback from those that participated in the conference last week. It sounds like you were right on target with your vision of what our leaders were requesting and that the conference was exceptionally designed to provide the desired deliverables. Thank you for all that you do to continue to help us grow individually and as a team."

Senior Manager ∣ Global Scientific Research Organization

"Over the past three years your trusted advise and counsel have been invaluable in helping us achieve our goals. I particularly want to thank you for the extraordinary coaching you have provided to the members of the senior management team. Thank you for everything."

CEO ∣ North American Packaging & Distribution Company

"Graden met with our management team over the course of several years. He was always a careful listener and worked hard to help us become a more cohesive team. His individual attention helped me to identify areas of personal strength and strategically work on ways to continue to grow as a leader."

Senior Scientist ∣ Chemical Division ∣ Global Research & Development Corporation

"Thanks to your thoughtful insight and skilled facilitation... we have a good start to transformational change."

Senior Partner ∣ Consultants & Business Advisors ∣ Federal Services

"Please thank everyone at your firm for the great job they did last week. The "strategic dialogue" method was very effective; I certainly understand the difference between discussion and dialogue now! We are moving forward with our strategic action plans and I look forward to our follow-up meeting in two months."

Senior Executive Vice President ∣ Global Channel Support & Technology Services

"I can look at the behaviors I chose to change, and know that I have been successful in changing them. I delegate very differently now, allowing others to find solutions within a framework which I establish. I am finding it much more natural to be an effective listener. I made a conscious effort when I began this process to build relationships with my peers and I have done that. I am finding ways to bring humor into the work environment ... Wow! Without your guidance these things would not have happened. I am happier and once again enjoy coming to work knowing that what I do everyday is critical to the success of my department, my peers, and the company as a whole. Thank you."

Vice President ∣ Fortune 500 Insurance & Financial Services Company

"Your insight and ability to see the big picture really helps me get outside my own head. You give me so much to think about, it is hard for me to take it all in and process it in the short amount of time we have to talk. Thanks for being here."

Communications & Marketing Director ∣ Global Energy Distribution Company

"I've told many colleagues, It is always a pleasure to soak in your insights. I always feel the need to just stop and think about things for a while after spending time with you. I am so glad that it’s all about attitude because that’s the main thing I have going for me. I am always eager to put the tools you provide to work. Thanks for your motivation and leadership to do what needs to be done. Thank you for what you are doing for our company my friend. Your influence has made it a better place to work."

Top Producer on National Sales Force ∣ Manufacturing & Distribution

"I just wanted to thank you for these past two days. As a result of your work, my management team is a different group of people; communicative, open, and energized. It has invigorated everyone's drive. I don't want to lose the momentum that we have created, so I intend to get back here, roll up my sleeves and get to work. I am picking up a copy of Crucial Conversations. If you have any other recommendations for "must reads" let me know. As far as my personal vision goes, I have always been one to create my own internal fire. Thank you for throwing gasoline on it!"

Senior Manager Business Development and Oversight ∣ Chemical & Engineering Division ∣ Global Scientific Research Company

"It was a pleasure to meet you and nice to put a face to a name. Many of our employees are familiar with you and your work and it was nice to see first hand why you are always spoken of with such high regard. Look forward to working with you again, soon."

Senior HR Director ∣ National Energy Production and Transportation Company

"Just the two hours we spent over dinner discussing my department, and how I can become a more effective leader; your insight into my employees and how I might differently approach leading them and developing them was worth the entire fee we paid for you to be here this past week."

Director ∣ Scientific Research & Development Company

"I want to thank you for everything, I use all you helped me to understand on a daily basis in my current job, and I love who I have become through the growth I have gained through working with you."

Quality Control Manager, North American Food Manufacturer