DLZ is a source you can trust

With over 900 people in 30 offices, DLZ is one of the top consulting firms in the architectural, engineering, and surveying industry. The firm is ranked #139 by Engineering-News Record (ENR) on their Top 500 Design Firms in the United States and the 11th largest in the Midwest. DLZ professionals work together as a team to safely deliver a wide range of project sizes and types across the country.

DLZ’s engineers, architects, planners, and technical support staff are innovative and understand that every project is different. We have the experience and expertise to realize that each client’s needs and wants are unique. We approach each project with this in mind and stand behind the work that we do.

Our continued growth is an American story. We look forward to a lasting and rewarding business relationship. Great projects are made from such partnerships. Chairman and CEO Vikram “Raj” Rajadhyaksha, PE

Family- and Minority-owned Business

DLZ is a graduate of the Federal 8(a) Business Development Program and has grown from two employees to one of the nation’s largest A/E consulting firms. A certified Minority Business Enterprise (MBE), DLZ holds nearly 60 MBE certifications with agencies across the Midwest.

Serving Our Clients

Our ownership structure offers us the flexibility to autonomously make efficient and swift business decisions. Our project managers and client-facing teams have a thorough grasp on the needs and requirements of the communities that we serve. This not only serves as a competitive advantage to DLZ and ensures we are readily available to meet to rising needs of our clients.

We regularly reinforce a focus on how to best serve our clients and revisit business practices to identify scope for improvement.

Who We Are



As one of the top consulting firms in the architectural, engineering, and surveying industry, DLZ is proud of its’ talented, multidisciplinary staff.



A nationally-recognized firm, DLZ serves public and private entities across the nation.


Repeat Business

We view every engagement as a long-term relationship, no matter how small. In fact, 85% of our work is from repeat business.


Over 100 Years of A/E Services

DLZ has been providing superior client service, improving our nation’s infrastructure and solving architecture, engineering and design challenges for over 100 years. Several DLZ divisions have been providing professional services since 1916.


Top 500 Design Firm

DLZ is ranked by Engineering News Record as one of the Top 500 Design Firms in the United States and the 11th largest in the Midwest. We realize our growth and success is a testament to the quality of our work.

80 / 20

Public / Private Partnerships

DLZ partners with public and private entities to make our communities a better place to live. Nearly 80% of our work is with local, state and federal clients. The other 20% is in the private sector.


At DLZ, our diverse, collaborative environment allows for everyone to be a part of a team in achieving project goals. We are client-focused and place a high value on people and innovation. We recognize and reward our employees for their invaluable contributions to the company’s success.

We believe and promote a positive and fun work environment while supporting productivity. DLZ offers our employees work opportunities that cater to their professional growth and success. We value continuing education and advanced career development and encourage employees to participate in professional, technical and civic organizations.

Our culture is built upon our Chairman and Founder’s Six Principles Business Model


Continual growth offers superior opportunities to serve our clients and employees.


To support future growth, it is essential that we strive to make a profit.


We take great pride in delivering quality service, the first time. We work side by side with our clients to ensure quality is not jeopardized, while adhering to our client’s schedule and budget goals.


Marketing is not just a department. Everyone at DLZ is responsible for marketing and we all represent DLZ in our communities.


We treat our clients and employees with compassion and respect. It’s a part of what makes us who we are.


Our employees understand safety is not an individual choice, but a lifelong value impacting every aspect of our projects.

Ensuring our employees have a healthy work-life balance is fundamental to DLZ. We understand the pressures of balancing professional and personal commitments. We make programs and benefits available to employees that  assist with situations and challenges that impact their daily lives. Trending employee feedback typically includes accommodating work environment, coworkers, and excellent benefits amongst the best qualities of the firm.

Part of Your Community

Our communities are the heart of all we do. We believe it’s essential to give back to the communities in which we work and live. DLZ’s employees contribute their time and talent to a variety of organizations that help to improve the daily lives and health of individuals throughout the states where we do business.

DLZ’s community involvement includes supporting institutions that serve causes related to healthcare, women and children welfare, natural disasters, food donations and education.

DLZ Carbon

DLZ Carbon, our Costa Rica branch, provides a broad array of services for renewable energy (hydropower, wind power, solar power, geothermal power), water and infrastructure projects in Central America. With an office in San José, DLZ Carbon’s staff of engineers and technicians offer interdisciplinary and innovative services to meet specific needs of every project. For 25 years, DLZ Carbon (formerly Carbon Ingeniería) has been involved in over 75 projects in Central America, Mexico, the Caribbean and South America, with services including pre-investment studies, design, and construction supervision, guiding investors, developers, public agencies and contractors through every stage of project development. DLZ Carbon’s experience in Latin America expands DLZ’s expertise and approach to a broader market.

Visit DLZ Carbon https://dlz.com/carbon/