Real people, building real relationships.

E&A is a planning, engineering, environmental and field services company with roots planted firmly in the Midwest. As a company, we take pride in our responsibility to create and support the infrastructure and landscapes our families, friends and neighbors enjoy. Our role as a trusted and experienced partner is often behind-the-scenes. We serve our clients in matters of compliance, making informed decisions and building communities. We are truly invested in the betterment of our communities.


55 years later...

In 1966, a gallon of gas averaged $.32, color televisions were gaining popularity and in Omaha, Leon Black and Don Elliott formed the predecessor to E & A Consulting Group, Inc., Elliott and Black.

The company catered to both private and public clients, offering civil engineering services for land development, land surveying, construction administration and residential SID maintenance services. Key projects included the Roanoke residential SID and various projects for the Nebraska Department of Roads and Metropolitan Utilities District.

Much like the televisions of 1966, E&A has evolved beyond the dreams of its creators.

In addition to its Omaha headquarters, E&A opened a Lincoln office in 1998 and in 2008, acquired the Phoenix-based, O’Neill Engineering, Inc. In 2016, O’Neill officially changed its name to E&A and then in early 2018, the company closed its Arizona location.

Fifty-five years later, the firm still offers civil engineering and surveying services to private and public clients, in addition to many other services, allowing us to more comprehensively serve our clients. We remain committed to providing innovative engineering answers for every project and look forward to growing with the changing needs of our clients over the next 55 years.

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Engineering Answers to create better communities.

At our very core, it’s about our people and our customers. Our company exists for them and due to them. We are only as successful as they are and ultimately, we are accountable to them. We strive to support meaningful growth and opportunities to both our people and our customers.

Inside the office, E&A provides a learning environment with opportunities for professional development and excellent benefits. Our culture is fun, charitable and family-oriented and our employees are expected to deliver quality work, be responsive, solution-focused, timely and dependable. We invest ourselves in our customers, building mutually-beneficial, genuine relationships in which we share both the challenges and victories.

Moreover, it is these genuine relationships for which we strive.  For us, a genuine relationship is the state of being connected that is sincerely and honestly felt.  The characteristics of a genuine relationship for which we strive are:

  • Sincere – showing that we care
  • Trustworthy – demonstrating that you can count on us
  • Invested – giving of our time
  • Informed – knowing what your concerns are
  • Willing – making time for you
  • Intentional – showing a desire to strengthen our relationship


Our People

  • Employee Development – We provide leadership, a career path, professional development, and meaningful performance reviews to every employee
  • Culture – We provide a professional, learning environment that is fun, charitable, and family-oriented where our employees enjoy coming to work
  • Benefits – We provide excellent opportunities for health and financial well-being for all employees and their families

 Our Company

  • Fair profits for sustainability and growth
  • Accountability – to Our People, Our Customers, and Our Company

Our Customers

  • Genuine Relationships – We build honest, long-lasting, mutually beneficial relationships
  • Responsive
  • Quality of work
  • Solution Focused – Engineering Answers to meet client expectations
  • Timely & Dependable
Over the last 55 years, we have been fortunate to have the opportunity to build genuine relationships with countless people and we look forward to building one with you.

Community Outreach

E&A has a long history of community involvement and we are proud to support and encourage our employees to make a positive impact within our communities. These efforts include mentoring students in advanced educational tracks and also those in under served areas.  We hold drives for food and toys, support the United Way of the Midlands, participate in Papillion-La Vista Schools Cooperation BEST program, Habitat for Humanity, Math Counts and volunteer at outreach centers.  In short, we have employees who care.


Tom Nussrallah, PE

President & COO

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Jason Thiellen


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Mark Westergard, PE

Chairman of the Board

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Kyle Vohl, PE

Secretary of the Board

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Tom Nussrallah, PE

President & COO


  • Bachelor in Computer Science, University of Nebraska – Lincoln
  • Master in Business Administration, Creighton University

“It’s about creating a great environment where people are empowered to do great things.”

Tom’s entry into the industry came as the result of a serendipitous phone call. He had called his future father-in-law, Gene Spence, looking for a reference on a job application. Gene, who was E&A’s president at the time, encouraged Tom to consider a position with E&A instead.

Tom accepted Gene’s offer to join the firm as a civil engineer-in-training. For 22 years, he served in several different positions throughout the firm, including civil engineer, project manager, and systems manager, where he built E&A’s IT department from scratch.

In 2014, Tom became the President and Chief Operating Officer. He oversees human resources, IT, finance and overall company operations on a daily basis. “I am very much a detail person. Putting all of the pieces together that support company function gives me a sense of accomplishment and personal pride.”

Jason Thiellen



  • Bachelors of Horticulture/Landscape Design, University of Nebraska—Lincoln
  • Masters of Community & Regional Planning, University of Nebraska—Lincoln

“It’s important to me that what I’m doing is driving the company forward.”

Jason has a passion for land development and real estate. He’s dedicated the last 14 years of his career to soaking up every bit of knowledge he can about the land development process.

Jason’s passion comes through in his role at E&A, where he is responsible for all the planning, landscape design and platting (entitlements) processes. Combining these functions into one department has allowed him to create integrated processes for the company, and build our brand as a resource for developers, real estate agents, architects, title companies and attorneys.

Jason became an owner of the company in December of 2012, has served on the Executive Management Team since 2011, was elected as Secretary of the Board in 2014 and CEO in 2017.

“I want to look back on my career and feel a sense of accomplishment. I want to point to something and say, ‘I was a part of that.’”


Mark Westergard, PE

Chairman of the Board

“I love when I can show a younger engineer or even one of my younger project managers a different way to look at things or help them solve a problem.”

Mark’s engineering career started in an unusual fashion. Upon graduating from Iowa State, Mark landed his first job with a firm in Iowa. Just 30 days later, the firm announced they were going out of business. With no job and a wife and baby to support, Mark went out and Interviewed with four Omaha firms. Three of those firms offered him a position, and Mark took the job at Elliott & Associates, the predecessor of E & A Consulting Group, Inc.

From 1979-1984, Mark served as a Design Engineer. He left the industry for a period of time, then came back to E&A as a Project Manager in 1992. Mark was named CEO in 2000, and is also the head of the Civil Engineering department.

“I often get told that I am not a typical engineer and I like that. I would like to be remembered as a good engineer, but not a typical one.”

Kyle Vohl, PE

Secretary of the Board


Bachelors of Science, Civil Engineering, University of Nebraska at Lincoln, Nebraska

“If you make your professional relationships just about work, you miss out on the benefits that come from having a genuine connection with people.”

Kyle Vohl has emerged as a leader both within the firm and civil engineering community during his 20 years at E&A. Since his first days at E&A as a college intern, Kyle’s role has evolved from a residential development civil design engineer to project manager for both residential and commercial projects and a principal with the company.

“It’s rewarding to see projects go from concepts to communities where families are living. I have many friends who live, shop and work in these neighborhoods. Knowing that they are going about their lives and raising their children there is pretty special.”

Kyle also plays an active role in the civil engineering community, having served as president for Nebraska’s chapter of the National Society of Professional Engineers (NeSPE) and a mentor for the Society of American Military Engineers (SAME), Student Initiative Mentoring Program. He has been a member of the American Society of Civil Engineers since 1995 and is the current Nebraska House Delegate for NeSPE, giving him a chance to guide and impact legislation that will shape the engineering profession.

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E&A is situated in the Midwest with offices in Omaha and Lincoln, Nebraska.


10909 Mill Valley Road, Suite 100

Omaha, NE 68154



701 O Street, Suite 400

Lincoln, NE 68508