Building a Legacy of Innovation
TWD has a rich history of providing project management, engineering, procurement, and construction management solutions.

Customer Satisfaction, 25+ Years Strong
Our multidisciplinary project approach brings together professionals from different fields to collaborate and exchange ideas with our clients in multiple industries around the world. Through our expertise, innovative thinking, and commitment to excellence, together we deliver beyond all expectations.
The Story Behind TWD

TWD was formed by its founding partners, Milt Tsiapalis and Scott Wilson in 1994. The company remained a dream as they continued working in other careers, until 1999 when the dream became a reality with humble beginnings of their first office in Milt’s basement. Two best friends in pursuit of turning their passion into a profession along with their desire for growth and a challenge led to the naming of this company TWD… a play on words initially of “Two Weird Dads” was fitting as they both had young families in the early years of the company. Eventually leading to our core value of “Together We Deliver”.
Fast forward to 25 years and some may ask “who is TWD and what do we do”? Sure, we are a mid-sized engineering, procurement, and construction management firm in business for around 25 years now, but more importantly we would want you to know that we simply love the challenge of working together to deliver! What makes things even more magical at TWD occurs when we combine this underlying characteristic with our desire to responsibly and respectfully support a growing world, it becomes our passion and our WHY.
Discover the Brilliance at TWD


Vice President, Business Services


Vice President, Business Services
George has been with TWD over 13 years. He has over 30 years of experience with operations management, PMO and finance. He has developed and led project management office standards and teams in various industries and consulting capacities. He provides strategic and operational leadership for the TWD businesses to enable teams to produce at higher efficiency. George is also providing oversight and direction to TWD’s Quality Management System and to the Human Resource Department. George has published 3 books; 2 novels, and a non-fiction book called “Becoming A Leader: With Effort not Entitlement”
“Together We Deliver means that our team prides itself on teamwork. That includes our internal teams, our intimate relationships with clients, and also working with our valued suppliers and subcontractors. I am proud of our accomplishments and commitment to client satisfaction and servicing. If you have not experienced the advantages TWD has to offer, you should give us a try. You will not be disappointed.”


Vice President, US Operations


Vice President, US Operations
Mark is TWD’s Vice President for founding and managing all aspects of US Operations, with over 35 years of experience with management, project development, project management and engineering design in a wide variety of industries and on projects up to $2 billion in value.
He provides strategic consulting support to our clients and to our US Team, with a particular focus on project development, project execution strategies, and risk management. Mark also assumes relationship sponsoring and management roles with several of our strategic client relationships.
Mark is proudly involved in all aspects of managing TWD US Operations. This includes strategic growth, business development, operations (project management, engineering, procurement, construction management, quality, and HSSE), and finance.
Mark graduated from Point Park University, Mechanical Engineering, in 1996 and an MBA (focus in Management and International Business) in 1999. He started in the EPC/EPCm Industry in 1989 working from the bottom up ultimately creating himself a coop program to provide real world experience. This allowed for many different industry experiences from very large to small across a variety of disciplines and business segments.
He makes the point of being personally involved with many of TWD’s clients having grown up through the industry and enjoys meeting everyone and supporting successful completions.
Mark has 2 daughters now in college and you may have seen him either watching or coaching them around the country! He also attempts golf on occasion so you may have also seen him in the water or woods!
“Together We Deliver” means that our team prides itself on teamwork. That includes our internal teams, our intimate relationships with clients, and working with our valued suppliers and subcontractors. I am proud of our accomplishments and commitment to client satisfaction and servicing. If you have not experienced the advantages TWD has to offer, you should give us a try. You will not be disappointed.”
Celebrate innovation and unlock new possibilities with TWD.
We PERFORM™ at a Higher Level
PERFORM™ embodies our core philosophy at TWD. It's a project execution process, uniquely developed by us, aimed at ensuring the successful completion of projects, delivering optimal results to our clients. This comprehensive program aligns our core values, purpose, and brand promise with business procedures and execution guidelines. It's not only about improving efficiency but also nurturing TWD's workplace culture.
PERFORM™ actively involves our people, clients, and suppliers, driven by our belief in "Together We Deliver." We've invested in an in-house quality and safety management system known as PERFORM™
The PERFORM™ process includes the following key areas:
Develop
Focused on the evaluation and validation of project viability.
Execute
Delivery of projects from concept to reality in a safe, efficient, and timely manner.
Optimize
Delivering upgrades, de-bottlenecking, maintenance, and operating improvement projects to assist our clients with sustaining and improving business performance of existing assets and operations.