About D. Grimm, Inc.
Our Team
Client Testimonials
WHO WE ARE
D. Grimm, Inc. is a full-service civil construction contractor specializing in utility, energy and power generation, industrial, and infrastructure projects throughout the United States. Headquartered in Navasota, TX we provide comprehensive civil construction solutions including substation civil construction, transmission line civil work, drilling operations, concrete foundation installation, underground utilities installation, land clearing and grubbing, site development, earthwork, and environmental services. Our team supports complex infrastructure projects requiring precision execution, strict safety compliance, adherence to stringent deadlines, and dependable coordination across every phase of construction.
Our company was built on a foundation of industry experience, loyalty, accountability, and a commitment to delivering safe, high-quality workmanship. We proudly support utility providers, EPC contractors, developers, and industrial clients with experienced field leadership, skilled crews, and specialized equipment capable of performing in demanding environments and challenging terrain. From large-scale site preparation and drilled foundations to environmental compliance and final restoration, we approach every project with a focus on reliability, clear communication, and long-term performance. Guided by our core values of Consistency, Honesty, and Integrity, we are committed to building lasting partnerships through dependable execution and results our clients can trust.
Our Mission & Approach
At D. Grimm, Inc., our mission is to provide dependable, safe civil construction solutions while building long-term partnerships through Consistency, Honesty, and Integrity. We are committed to delivering projects safely, efficiently, and with the highest level of professionalism from start to finish.
Our Civil Engineering Services
Substation Civil Construction
Transmission Line Civil Work
Foundation & Concrete Construction
Underground Utilities Installation
Land Clearing and Grubbing
Site Development and Earthwork
Drilling Operations
Ensuring Your Safety
Safety Comes First
Safety is at the core of everything we do at D. Grimm, Inc. We are committed to maintaining a strong safety culture where every employee, subcontractor, and project partner is equipped to work responsibly and return home safely each day. Through ongoing safety training, proactive communication, detailed pre-job planning, hazard awareness, and strict adherence to industry regulations and best practices, we work to maintain the highest standards of safety across every phase of construction. Our teams understand the unique risks associated with utility, transmission, drilling, excavation, and heavy civil construction projects, and we approach every job site with safety as a top operational priority.
We believe successful projects are built through preparation, accountability, and teamwork. From field crews and equipment operators to supervisors and project management, every member of our organization plays a role in protecting our people, our clients, the public, and the environments where we work. By combining experienced leadership, disciplined jobsite procedures, quality safety training, and a commitment to continuous improvement, we strive to deliver projects that are not only efficient and high-quality, but also safe, compliant, and professionally executed from start to finish.
Reliable & Responsive
Our Trusted Partners









Why Clients Choose D. Grimm
Specialized Industry Expertise
We focus on utility, energy and power generation, and heavy civil infrastructure projects, giving our team the experience needed to manage complex construction environments.
Reliable, Turnkey Solutions
From initial land clearing and drilling to final grading and restoration, we provide comprehensive civil construction services under one roof.
Commitment to Quality & Integrity
We believe in doing the job right the first time through dependable communication, quality workmanship, and a strong commitment to our clients and partners.
Testimonials
What Our Clients Love About Us
From 2015 to 2019, D. Grimm, Inc. has built many projects for my team – ranging in value from 200K to 3.5MM – including substation construction involving clearing, site preparation, SWPPP, grading, rock excavation, imported fill, fencing, and final surfacing.
D. Grimm, Inc. has always been dependable, thorough, and professional in their service operations. Beyond this, no matter what the schedule may be, safety and quality are always a priority that is
incorporated into their work.
As a Project Manager, D. Grimm, Inc. is always welcome on my jobs and come highly recommended by
Dashiell to our customers.
On behalf of Burns & McDonnell, I would like to express our sincere gratitude for your outstanding performance at Sitgreaves Switchyard. Your team’s unwavering dedication to project success, consistent high quality of work, and exemplary commitment to safety have been truly exceptional throughout this project.
We particularly appreciate your team’s efficient planning and problem-solving techniques. We value when our partners not only coming to us with problems, but also a complementary cost-effective solution. That’s what we can expect when working with D.Grimm.
Your team sets a high standard for all our subcontractors.
We value your partnership and look forward to the next one.
Frequently Asked Questions
What industries does D. Grimm serve?
We support utility, power generation, renewable energy, industrial, commercial, and infrastructure projects requiring specialized civil construction services.
Where does D. Grimm work?
While we are headquartered in Texas, we regularly support projects throughout Texas, Arizona, New Mexico, and across the United States.
What makes D. Grimm different?
Our commitment to safety, experienced leadership, turnkey civil construction capabilities, and core values of Consistency, Honesty, and Integrity set us apart from other contractors in the industry.

