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Expert Engineering Consulting Services in Millersville, MD
For over four decades, Development Facilitators, Inc. (DFI) has delivered transformative, multi-disciplined engineering consulting services to governments, municipalities, and developers. Our expertise spans Construction Management & Inspection, Engineering & Surveying, and innovative Drone Services, tailored to meet the unique demands of each project. We prioritize early engagement in design phases to protect client interests while fostering collaborative environments. Our in-house team combines cutting-edge technology with practical experience to ensure projects are completed on time, within budget, and to the highest quality standards.

With a legacy of long-term client relationships, we specialize in infrastructure improvements, stormwater management, land development, and sustainable engineering practices. Our professionals hold certifications in ADA compliance, CPM scheduling, and FLIR thermal imaging, among others. DFIs community outreach includes educational partnerships to advance construction and engineering knowledge. Affiliated with leading industry organizations, we remain committed to integrity, technical excellence, and client satisfaction across Maryland and beyond.
Services
Construction Management Engineering Services Surveying Services Drone Services Land Development Permitting Thermal Imaging Storm Water Management Infrastructure Improvements ADA Compliance
Highlights and features
  • We offer 40+ years of experience in engineering and construction management.
  • Our in-house team ensures seamless project execution from design to completion.
  • We specialize in state-of-the-art drone and thermal imaging technologies.
  • Our professionals hold certifications in ADA compliance, CPM scheduling, and FLIR thermal imaging.
  • We maintain long-term partnerships with state and local government agencies.
What people say
High caliber Experienced Integrity Outstanding customer service
Services
Construction Management & Inspection
DFI provides comprehensive Construction Management & Inspection services, ensuring projects meet quality, budget, and schedule requirements. Our team engages early in design phases to protect client interests and foster collaboration. Services include ADA compliance, CPM scheduling, material testing, and project close-out, serving state and local agencies across Maryland.
Engineering & Land Development
Our engineering services focus on land development, infrastructure improvements, and stormwater management. DFIs in-house team delivers site development plans, feasibility studies, and permitting for commercial, municipal, and residential projects. Expertise includes roadway upgrades, septic design, and public works consulting, ensuring compliance with state and federal regulations.
Surveying Services
DFI offers boundary, topographic, and ALTA surveys for public and private clients. With 40+ years of experience, our licensed surveyors provide precise data for land development, construction stakeouts, and legal documentation, serving county agencies and developers across Maryland and Virginia.
Drone Services
Our drone program includes mapping, thermal imaging, and remote inspection. Using advanced LiDAR and photogrammetry, DFI delivers aerial surveys and 4K video for infrastructure analysis. Thermal imaging identifies building envelope issues, while remote inspections enhance safety during roofing and elevated construction assessments.
Storm Water Management Design
DFI specializes in stormwater management design for municipal and private projects. Our solutions include drainage systems, erosion control, and compliance with environmental regulations. Services ensure sustainable water management, reducing flood risks and improving site sustainability for long-term client benefits.
People
Raymond E. Streib
Chairman of the DFI Board
Raymond E. Streib, P.E., leads DFIs strategic direction with decades of engineering leadership. His expertise ensures the firms commitment to technical excellence and client satisfaction across complex infrastructure projects.
David Wissmann
President
David Wissmann, CCM, ENV SP, oversees DFIs operations and innovation. With expertise in construction management and drone technology, he drives the firms growth while maintaining its focus on integrity and sustainable engineering practices.
Steven Andraka
Vice President of Design and Engineering
Steven Andraka, P.E., manages DFIs engineering design team. His leadership ensures high-quality, cost-effective solutions for land development and infrastructure projects, combining technical precision with practical field experience.
Lori Amburn
Vice President of Accounting and Administration
Lori Amburn oversees DFIs financial and administrative operations. Her strategic management ensures fiscal responsibility and operational efficiency, supporting the firms long-term growth and client service excellence.
Theresa Bronakoski
Vice President of Marketing
Theresa Bronakoski leads DFIs marketing initiatives, enhancing the firms visibility and client engagement. Her efforts strengthen relationships with public and private sector clients through targeted outreach and community partnerships.
Questions
What services does Development Facilitators, Inc. offer?
DFI provides Construction Management, Engineering, Surveying, Drone Services, Land Development, and Storm Water Management solutions for public and private clients.
How long has DFI been in business?
DFI has delivered engineering services for over 40 years, with a legacy of client-focused infrastructure projects.
Which areas does DFI serve?
DFI serves Maryland counties, including Anne Arundel, Baltimore, and Howard, as well as state agencies and developers across the Mid-Atlantic region.
What makes DFI’s drone services unique?
DFI’s drone program combines thermal imaging, mapping, and remote inspection to enhance project safety, accuracy, and data visualization for infrastructure assessments.