Tennyson LLC was founded to help transform the way people work using proven principles of behavioral change. Any change in a business requires a change in its people. Behavioral change happens when a person has the motivation, ability, awareness and opportunity to do something differently.

During more than a decade of working with outstanding individuals in the finance sector, founder Sarah Tennyson saw over and over again that technical capability alone is not enough to reach the highest levels of success.

Inadequate self-awareness, poor communication, lack of empathy, weak political savvy or an inability to resolve interpersonal conflict derail individuals and teams more often than technical or functional deficiencies.

Our mission is to help people develop the behavioral skills that they need to  progress in their careers and deliver business results.

Download Sarah’s Bio


Sarah will be presenting at the following events.

Succession Planning and Leadership Transition PRMIA (Members Only). 11 January 2017.

Hot Topic Roundtable ATD New York Chapter. 25 January 2017.

Can’t we all just get along? Multigenerational Seminar SHRM NY Chapter. 26 January 2017.

How to Prepare the Next Generation of Leaders for Your Business Manhattan Chamber of Commerce. 22 March 2017.

Lumina Spark Free Taster Session Primary, 26 Broadway, New York City, 31st March 2017.

Our Philosophy


Motivation x Ability x Awareness



Everyone needs external motivation to some degree, but self-motivation is cheaper, more powerful and more enduring. We help people find, understand and relate to the “why?” behind the change you want them to make.


We help develop the personal and professional skills that enable your people to influence, lead, manage, negotiate, inquire, sell or present with greater positive impact.


Without awareness of what you’re doing now and what “different” looks like, you must rely on luck or trial and error to lead you to success. We focus on building awareness so your people develop by design, and take the most direct path towards results.


We partner with our clients to ensure that participants have ongoing opportunities for practice, feedback and reflection, even after our program has ended.


As a strategic alliance partner, we provide you with access to the full range of Lumina resources, access to an international community of affiliates, and ongoing support for qualified practitioners.

In conjunction with our alliance partners, Action Lab A/S from Denmark, we are proud to introduce the Action Labs® methodology to our clients.

In alliance with our partners Odyssey, we apply the Odyssey Behavioral Decision Making Model to facilitate organizational change by transforming behavior.