The Advisory Alliance Network of more than 30 Executive Consultants offers access to executive-level expertise to support your company's continued success. Our consultants have had the honor of working with leading organizations, in a variety of industries.
Below is a small sampling of the expertise that can be provided to your organization.
Managing Principal
Executive Consultant
Executive Consultant
Executive Consultant
Executive Consultant
Executive Consultant
Executive Consultant
Executive Consultant
Executive Consultant

Executive Consultant
David Sullivan, Executive Consultant with The Advisory Alliance, has more than 20 years of corporate experience as coach and advisor to senior management and human resources executives on bridging the leadership gap in their organizations. He specializes in the design and delivery of leadership, management, and supervisory development processes across multiple industries, including insurance, oil & gas, chemicals, telecommunications, and manufacturing. His work has been utilized by Boral Industries, ALICO, Preferred Networks, and organizations now part of AkzoNobel and NiSource.
David’s approach is specifically linked to the strategic and tactical objectives of an organization and the future competency development needs of an individual or functional team. His work in these areas has been recognized for excellence by major corporations, business associations, the Center for Creative Leadership, government agencies, and institutions of higher learning. The learning and individual development programs he has designed have proven especially valuable in succession, career planning, and productivity improvement initiatives.
David's work has included the design and delivery of:
- A low cost/high impact leadership development and talent management process, which included leading executive and high potentials teams in 360 degree feedback; personality type and job competency assessments; debate forums; and annual preparation and tracking of individual and functional development plans, linking to corporate strategies and values, job skills, and career planning.
- Training programs in more than 25 skill areas aligned with company growth strategies and performance objectives.
- Special e-learning programs on corporate values, compliance, code of conduct, and diversity & inclusion.
- Processes to attract and retain high-potential MBAs and scientists, which included an innovative recruiting and career planning processes, delivery of on-campus presentations, and a new corporate on-boarding process.
- An expert witness training program (assessment and skill enhancement) to help prepare energy company executives and engineers to give effective and fact-based testimony in federal and state courts, before regulatory/public utility commissions, and administrative law proceedings.
David has delivered numerous presentations on organizational and leadership development, witness training, and other human resources topics before corporate, government, and professional societies, and has presented at The Conference Board and Lominger conferences. David has been awarded first place finishes three times in the First State Communications Awards Program, and has appeared in Pension World magazine. He attended Boston College and the University of Delaware and has a B.A. in Economics.