About DMSI
In 1965, Richard Mancini incorporated Ric-Man Construction, Inc., which specialized in constructing large-diameter pipelines for municipal sewer and water projects throughout Michigan.
Key Personnel

President
With over thirty-five years of construction experience from Michigan to Florida, David Mancini has built David Mancini & Sons, Inc. (DMSI) into the premier underground civil contractor in South Florida. David served as Pre
sident and Qualifier for his father, Richard Mancini, at Ric-Man International, Inc., from 1985-2010. Since incorporating David Mancini & Sons, Inc. in 2010, his “hands-on” abilities and vast pool of knowledge have enabled DMSI to become the leader in large-diameter pipeline construction.
Serving as Design-Builder Manager, David Mancini has completed a long list of projects within an urban environment throughout South Florida that include the installation of transmission water mains (PCCP & DIP), transmission force mains (PCCP & DIP), sanitary sewers, storm sewers, pump stations, jack and bores, micro tunnels, directional drills, roadways, sub-aqueous crossings, and neighborhood improvement projects over the past three decades. David Mancini is highly recognized for his expertise and achievements in trenchless pipe solutions.

Vice-President & General Manager
Richard Mancini, General Manager for David Mancini and Sons, Inc., has been fascinated with the underground industry from a young age.
When he was young, he would spend his days after school operating all the equipment in our storage yard, and starting around 10 years old, David Mancini Sr. would bring him to job sites on the weekend to learn how to run the equipment.
At 15 years old, he got his first summertime job cleaning the shop and doing light mechanic work. Fast forward to the present day, Richie is fully immersed in running large-diameter pipeline projects and leading the daily operations in the field, including safety, quality, productivity, equipment coordination, and Subcontractors management.
Richie works with the Project Management team to build safe, high-quality underground utility projects.

Vice-President & Project Manager
David Mancini Jr. has over 15 years of construction experience in South Florida. As a field laborer, David Mancini Jr. began his career in construction at only 15 years old, working on construction projects for various municipalities.
As a project manager of David Mancini and Sons, Inc., David administers all construction operations, residential public relations, and coordination with various municipalities’ construction projects.
His specialization and experience are in neighborhood improvement projects, transmission main installations and replacements, and high-profile and politically sensitive large-diameter design-build projects.
His management practice consists of a “first person on site and last person to leave” attitude. David’s main priority in administering construction operations is limiting at all costs the impact construction operations may impose on the stakeholders.

Vice-President & Project Manager
With over 25 years of experience in civil engineering and project management, Fabio Angarita has been instrumental in shaping South Florida’s infrastructure. A graduate of civil engineering from Bogotá, Colombia, Fabio has dedicated his career to overseeing complex municipal and utility projects, earning a reputation for precision, leadership, and delivering results in urban environments. As Vice President and Senior Project Manager at David Mancini & Sons, Inc. (DMSI), he has led projects exceeding $150 million, transforming neighborhoods and ensuring the resilience of essential systems.
Fabio’s portfolio is a testament to his expertise, encompassing storm sewer systems, pump stations, water mains, force mains, and subaqueous crossings. Among his signature projects are the Coral Ridge Force Main Replacement in Fort Lauderdale, the Venetian Causeway Water and Sewer Replacement in Miami Beach, and the 42” Water Main at the Port of Miami. These endeavors highlight his ability to manage multi-disciplinary teams, adopt innovative solutions like horizontal directional drilling, and prioritize community impact while staying within budget and timeline constraints.
Beyond technical excellence, Fabio is a collaborative leader committed to fostering client relationships, mentoring younger professionals, and adapting to industry advancements. His role at DMSI not only involves project execution but also strategic planning, ensuring the company remains at the forefront of South Florida’s development. Fabio’s dedication to quality and sustainability underscores his contributions to both DMSI and the communities they serve.
Our History

In 1983, Richard Mancini formed Ric-Man International Inc. (RMI), and from 1985 to October 2010, David Mancini served as President and qualifier for RMI. In October 2010, David Mancini incorporated David Mancini & Sons, Inc. (DMSI).

David Mancini & Sons Inc. has completed a long list of underground projects within an urban environment throughout South Florida that include the installation of transmission water mains, transmission force mains, sanitary sewers, storm sewers, pump stations, jack and bores, micro tunnels, directional drills, roadways, sub-aqueous crossings, and neighborhood improvement projects over the past three decades.
When David formed DMSI, he hired renowned experts from all levels, from key management to field personnel, bringing extensive experience and teamwork to the company.
Currently, David’s children, David Jr. and Richard are 4th generation contractors with roots in the industry dating back to the 1950s, and they continue to pursue the family legacy by constructing tomorrow’s infrastructure with quality workmanship, safe practices, precise attention to client’s interests, professionalism and integrity.
Only the Best
Eco Friendly Construction
By implementing innovative strategies such as waste reduction, water conservation, and renewable energy systems, we strive to create high-quality, environmentally conscious structures that contribute to a healthier planet for future generations.
The Newest Technology Repairs
We pride ourselves on utilizing the newest technology repairs to ensure the highest quality and efficiency in our projects. Our team stays at the forefront of industry advancements, employing state-of-the-art diagnostic tools and repair techniques that enhance precision and durability.
High Quality Construction Management
By coordinating every phase of the construction process with precision and expertise, we guarantee timely completion, cost efficiency, and exceptional craftsmanship in all our projects.


Years Established
Completed Projects
“Construction: The only place where you can tell someone to ‘hit the road’ and they actually do it.” — Linda “Paver” Carter
Our Services

Design Build Services
This method saves time and money while decreasing litigation associated with design-build projects…

Transmission & Distribution Systems
We are experienced in all types of pipe materials and systems that deliver the water to the…

Horizontal Directional Drilling
This method provides less traffic disruption, lower cost, deeper and/or longer installation, and…

Pump Stations
DMSI has successfully installed multiple storm water pump stations throughout Miami Dade County…
Company Qualifications

- State of Florida Underground & Excavation Contractor – Lic# CUC 044220
- State of Florida Board of Professional Engineers – Lic# 29437
- Broward County 3A: Major Roads – Lic# 0-1650-W
- Prequalified Contractor by the Florida Department of Transportation
- Technically certified by Miami-Dade County as an Architect & Engineering Firm
- Pre-qualified by Miami-Dade Water & Sewer as an Emergency Response Contractor
- Qualified Business Organization – Lic# QB0008454
- State of Florida Underground Utility – Lic# CU-C0442220
- Broward County – Lic# 00-1650-W
- Certified Underground Utility and Excavation Contractor – Lic# CUC1224698