Peggy del FabbroBlue overlay


"It’s rare to have a woman owned company continuously
operated by one family for five generations and 145 years,
but M. Davis is not like any other company. Discover how our
unique outlook, devotion to customer service, and successful
track record for quality, dependability, and safety makes us
different – and dramatically enhances your results."

Peggy Del Fabbro

Jim RauchBlue overlay


“At M. Davis the ongoing training in construction trades, safety
and finer skills benefits our skilled workforce. This translates into
high quality workmanship and customer service. Training and
mentoring employees so they can grow and advance their
careers means we're making an investment in M. Davis.”

Jim Rauch

Chris McCafferyBlue overlay


“My job at M. Davis allows me to see a project through from
inception in CAD drawings to finalizing preparations for shipping.
Since M. Davis has the capabilities to do many trades – electrical
field installs, panel building, design, welding, pipe fitting, steel,
HVAC, etc. – I get involved with a variety of projects from
beginning to end, and I love that.”

Chris McCaffery
Project Coordinator

Randy SheppardBlue overlay


“M. Davis is pretty unique in that it invests in its people, providing
ongoing skills and safety training so employees can continually
learn and add value back to the company. We are in it together
for the long term, delivering innovative solutions by seasoned
trades people."

Randy Sheppard
Project Coordinator

Hernan ArroyoBlue overlay


“M. Davis is one of those increasingly rare companies that invests
in the career growth of its employees through an ambitious
training program. At M. Davis I’ve had the amazing opportunity to
learn from skilled team members and advance from summer
intern to project engineer.”

Hernan Arroyo
Project Engineer

Matt GriffithBlue overlay


“The employees at M. Davis are a great group of individuals. In our
industry, many opportunities occur to tackle unique obstacles in
order to complete projects safely, efficiently and effectively. Our
team always meets these challenges head on to complete the
projects over and above expectations. That success is
very rewarding.”

Matt Griffith
Project Administrator

145 Years Strong

"It’s rare to have a woman owned company continuously operated by one family for five generations and 145 years, but M. Davis is not like any other company. Discover how our unique outlook, devotion to customer service, and successful track record for quality, dependability, and safety makes us different – and dramatically enhances your results."

Peggy del Fabbro, CEO

Who We Are

We’re a 5th generation industrial construction company that builds, installs and maintains corporate plants and facilities for national and international companies. Our expertise in mechanical, electrical, fabrication and instrumentation is honed with engineering know how to create a seamless, more efficient process for our customers. Working across industries our staff is credentialed and accustomed to upholding the safety and construction standards from the dirtiest water treatment plants to the most pristine pharmaceutical labs.


5 Generations Committed To Quality and Safety

M. Davis & Sons, Inc. began as a tinsmith shop in 1870, and has evolved to become a leader in industrial construction, fabrication, and maintenance. Now in its fifth generation M. Davis is proud to maintain facilities for Fortune 500 companies as well as government agencies. Key industries include: oil & gas, pharmaceutical, chemical, food & beverage, power generation, technology and breweries to mention a few. One call to M. Davis gives you access to solutions 24/7.

We look forward to speaking with you about your next project.

Request a proposal for your next construction, fabrication or maintenance project.

  • Edward R. Davis Founder 1870 when he began his tinsmith company in Wilmington, Delaware.

  • Marcellus Davis, Sr. Took over the business in 1910 and expanded it to include a tinsmith shop and store.

  • Marcellus "Pete" Davis, Jr. Joined in 1948. He created the foundation for today's M. Davis expanding into industrial services and including warm air and air conditioning capabilities.

  • Charles R. Davis Presided over M. Davis’ evolution into the company it is today. He joined the company in 1954 and is currently active in its management. Charles’ vision and drive dramatically expanded the company’s expertise, services, and industries served.

  • Peggy (Davis) Del Fabbro Joined M. Davis in 1987 and is now CEO. Peggy has been the driving force behind our WBENC certification. Peggy along with her father Charles Davis, and partner John Bonk, have built a company with solid values and a commitment to being on the cutting edge of technology which has made M. Davis the leader it is today.



M. Davis is committed to the principles of sustainable performance and corporate social responsibility. These principles are integral to our business strategy. While carrying out their responsibilities, all M. Davis employees are expected to adhere to our high legal, ethical and moral standards. Our behavior needs to be above the business norms with regard to courtesy, conflict of interest, corruption and confidential information.


  • M. Davis will always provide a safe and healthy work place for our employees and suppliers. It is expected that our suppliers will be compliant with local and national laws and regulations on occupational health and safety. They must have all required permits and licenses in place. It is required that they have a documented health and safety program in place with all appropriate safety infrastructure and equipment.
  • All employees will be paid at least minimum wage as stipulated by national law.
  • There will be no discrimination against employees for exercising their rights such as submitting complaints to management.
  • Suppliers shall not use labor that is forced to work overtime or under the legal minimum age. Minors shall not be hired to perform work that is hazardous or harmful to their health.
  • Workplace discrimination to include but not be limited to the following; gender, sexual orientation, race, age or religion; will not be tolerated on any level.
  • M. Davis and its suppliers shall respect and comply with all environmental regulatory requirements at the local and national level. All activities will have the appropriate environmental permits and licenses in place.
  • M. Davis and its suppliers shall systematically manage their environmental impacts with respect to energy, water, waste, chemicals and air pollution and set objectives to reduce our impact. Opportunities to improve our projects’ environmental foot print through programs like LEED will be aggressively pursued.
  • No M. Davis employees or any of its suppliers will request or accept any financial or other consideration that has the purpose of securing a contractual or personal advantage.

Supplier Diversity

M. Davis established a formal supplier diversity program to support healthy competition and a level playing field for all potential and existing suppliers. It is not only about social responsibility, but also a need to find and partner with the most competitive and innovative companies we can find. Our supplier diversity program is thought of as an opportunity for us to not only continue strong growth as a company, but in our community.

Could your company be a potential supplier to M. Davis?


Products & Services of Interest:

  • Construction materials
  • Employee training
  • Logistics
  • Office maintenance services
  • Safety equipment
  • Printing
  • Large equipment rentals
  • HR employment screening

WBENC logo
Certified annually by the Women’s Business Enterprise National Council as a woman-owned business.

In the Community

We Give Back

Many of our employees also volunteer their personal time and donate funds to make our community a better place to live and work.

  • Vocational Schools – we have been a long-time advocate of the vocational system in Delaware, Pennsylvania, New Jersey and Maryland and have provided resources to students interested in learning a trade. From career days to hiring co-ops, we know that working with young people helps our organization workforce stay strong.
  • Marcellus Davis Jr. Scholarship – This engineering scholarship at the University of Delaware is named for Marcellus (Pete) Davis, Jr. who propelled the company forward.
  • Delaware Nature Conservancy – We help the Delaware Nature Conservancy by participating and sponsoring the Dogfish Dash, an annual 5K/10K running event hosted by Dogfish Head Brewery.
  • Delaware Rotary – We support the endeavor of the Delaware Rotary. Their mission statement: “to provide service to others, promote integrity, and advance world understanding, goodwill, and peace through its fellowship of business, professional, and community leaders.”
  • Salvation Army’s Angel Tree Program – M. Davis team members help provide holiday gifts to needy children in the local community.
  • Stockings for Soldiers – M. Davis donates each year to Stockings for Soldiers to help our troops overseas during the holiday season.
  • Women’s Business Development Center
  • Easter Seals
  • Delaware State Police
  • ACE Mentor Program of Delaware
  • Delaware Foundation for Reaching Citizens (DFRC)
  • National Association of Women in Construction (NAWIC)
  • Suiting Warriors
  • Food Bank of Delaware
  • First State Robotics high school teams
  • Faithful Friends Animal Society
  • Special Olympics
  • Catholic Youth Organization
  • Boy Scouts of Delaware
M Davis Inc.