> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/companies-in/baltimore-md/construction/ # Construction Companies in Baltimore, MD The bigger construction companies headquartered in Baltimore, MD, with what they do, their sizes and how to reach their people. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** Among the construction companies counted in Baltimore, MD, the biggest by headcount range include M Luis, Cmaa - Baltimore Chapter and Concrete Protection & Restoration. They are mostly very small: 73% have 50 or fewer employees. ## Which construction companies are in Baltimore? Among the companies whose public profile lists Construction as their industry and Baltimore, MD as their headquarters, the biggest by headcount range include M Luis, Cmaa - Baltimore Chapter, Concrete Protection & Restoration, Access Contracting Group and Thomasville Restoration. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | M Luis | 201 to 500 | | Cmaa - Baltimore Chapter | 201 to 500 | | Concrete Protection & Restoration | 201 to 500 | | Access Contracting Group | 201 to 500 | | Thomasville Restoration | 51 to 200 | | Southway Builders | 51 to 200 | | Blueprint | 51 to 200 | | Ruff Roofers | 51 to 200 | | Reliance Fire Protection | 51 to 200 | | Matos Builders | 51 to 200 | | Industrial Refrigeration Service | 51 to 200 | | Mahogany Incorporated | 51 to 200 | | Alliance Exterior Construction | 51 to 200 | | Nawic Baltimore Chapter 135 | 51 to 200 | | Cole Roofing | 51 to 200 | | Four Twelve Roofing | 51 to 200 | | Kimball Construction | 51 to 200 | | Ironshore Contracting | 51 to 200 | | Dvorak | 51 to 200 | | Abc Greater Baltimore Logic | 51 to 200 | | Avid Services | 51 to 200 | | Emjay Engineering And Construction | 51 to 200 | | Allied Contractors, Incorporated | 51 to 200 | | The Berg | 51 to 200 | | Wolf Fire Protection | 51 to 200 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## What do construction companies in Baltimore do? Construction is a broad label. The most common NAICS codes among them are 238220 (10%), 238990 (10%) and 237310 (8%). **Figure: What construction companies in Baltimore do.** Bars for the share of counted construction companies with each code: 238220 10%, 238990 10%, 237310 8%, 238160 8%, 238390 8%, 236115 6%, 236220 6%. *Share of counted construction companies in Baltimore by their NAICS code.* [NAICS 238220](https://enrich.chat/naics/238220/)[NAICS 238990](https://enrich.chat/naics/238990/)[NAICS 237310](https://enrich.chat/naics/237310/)[NAICS 238160](https://enrich.chat/naics/238160/)[NAICS 238390](https://enrich.chat/naics/238390/)[NAICS 236115](https://enrich.chat/naics/236115/)[NAICS 236220](https://enrich.chat/naics/236220/) ## How big are they? 73% of the construction companies counted in Baltimore have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of construction companies in Baltimore.** Seven columns for the share of counted construction companies in Baltimore in each employee range: 11 to 50 73%, 51 to 200 25%, 201 to 500 2%, 501 to 1,000 0%, 1,001 to 5,000 0%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted construction companies in Baltimore in each employee range.* ## How old are they? Most were founded in the 2010s (24%), then the 2000s (17%). **Figure: When construction companies in Baltimore were founded.** Eight columns for the share of counted construction companies in Baltimore founded in each era: Before 1960 13%, 1960s 6%, 1970s 7%, 1980s 15%, 1990s 14%, 2000s 17%, 2010s 24%, 2020s 3%. *Share of counted construction companies in Baltimore by the era they were founded in, for the ones that list a founding year.* ## How construction companies compare - 27% were founded in 2010 or later, against 54% across other cities on this site. ## How do you reach the people at construction companies in Baltimore? The people to talk to are usually owners, operations and procurement leaders. Build the list in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the construction companies in Baltimore, MD ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the owners, operations and procurement leaders at construction companies in Baltimore, MD, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Other industries in Baltimore: [Hospitals and Health Care Organizations](https://enrich.chat/companies-in/baltimore-md/hospitals-and-health-care/)[IT Services Companies](https://enrich.chat/companies-in/baltimore-md/it-services-and-it-consulting/)[Nonprofit Organizations](https://enrich.chat/companies-in/baltimore-md/non-profit-organizations/)[Software Companies](https://enrich.chat/companies-in/baltimore-md/software-development/)[Advertising Agencies](https://enrich.chat/companies-in/baltimore-md/advertising-services/)[Financial Services Companies](https://enrich.chat/companies-in/baltimore-md/financial-services/)[Education Organizations](https://enrich.chat/companies-in/baltimore-md/education-administration-programs/)[All of Baltimore](https://enrich.chat/companies-in/baltimore-md/) Construction Companies in other cities: [Houston, TX](https://enrich.chat/companies-in/houston-tx/construction/)[New York, NY](https://enrich.chat/companies-in/new-york-ny/construction/)[Phoenix, AZ](https://enrich.chat/companies-in/phoenix-az/construction/)[Dallas, TX](https://enrich.chat/companies-in/dallas-tx/construction/)[Austin, TX](https://enrich.chat/companies-in/austin-tx/construction/)[Miami, FL](https://enrich.chat/companies-in/miami-fl/construction/)[Los Angeles, CA](https://enrich.chat/companies-in/los-angeles-ca/construction/)[Denver, CO](https://enrich.chat/companies-in/denver-co/construction/)[Chicago, IL](https://enrich.chat/companies-in/chicago-il/construction/)[San Diego, CA](https://enrich.chat/companies-in/san-diego-ca/construction/) ## Frequently asked questions ### Which are the biggest construction companies in Baltimore? Among those counted, they include M Luis, Cmaa - Baltimore Chapter, Concrete Protection & Restoration, Access Contracting Group and Thomasville Restoration, ranked by headcount range. ### How big are construction companies in Baltimore? 73% of those counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. ### Which companies count as construction? Companies whose public profile lists Construction as their industry and whose headquarters are in Baltimore, MD. ## Try this prompt Find the people at construction companies in Baltimore ```text Use www.enrich.chat to find the owners, operations and procurement leaders at construction companies in Baltimore, MD, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Hospitals and Health Care Organizations in Baltimore](https://enrich.chat/companies-in/baltimore-md/hospitals-and-health-care/) - [IT Services Companies in Baltimore](https://enrich.chat/companies-in/baltimore-md/it-services-and-it-consulting/) - [Nonprofit Organizations in Baltimore](https://enrich.chat/companies-in/baltimore-md/non-profit-organizations/) - [Software Companies in Baltimore](https://enrich.chat/companies-in/baltimore-md/software-development/) - [Construction Companies in Houston](https://enrich.chat/companies-in/houston-tx/construction/) - [Construction Companies in New York](https://enrich.chat/companies-in/new-york-ny/construction/) - [Construction Companies in Phoenix](https://enrich.chat/companies-in/phoenix-az/construction/) - [Construction Companies in Dallas](https://enrich.chat/companies-in/dallas-tx/construction/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)