> 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/seattle-wa/construction/ # Construction Companies in Seattle, WA The bigger construction companies headquartered in Seattle, WA, 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 Seattle, WA, the biggest by headcount range include Mckinstry, Lease Crutcher Lewis and Sellen Construction. They are mostly very small: 81% have 50 or fewer employees. ## Which construction companies are in Seattle? Among the companies whose public profile lists Construction as their industry and Seattle, WA as their headquarters, the biggest by headcount range include Mckinstry, Lease Crutcher Lewis, Sellen Construction, Manson Construction and Veca Electric & Technologies. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Mckinstry | 1,001 to 5,000 | | Lease Crutcher Lewis | 501 to 1,000 | | Sellen Construction | 501 to 1,000 | | Manson Construction | 501 to 1,000 | | Veca Electric & Technologies | 501 to 1,000 | | Cochran | 501 to 1,000 | | Charter Construction | 201 to 500 | | Hargis Engineers | 201 to 500 | | Spider By Brandsafway | 201 to 500 | | Marine Equipment Solutions | 201 to 500 | | Porter Construction | 201 to 500 | | Oma Construction | 201 to 500 | | Hudson Bay Insulation | 201 to 500 | | Venture General Contracting | 51 to 200 | | Traceair Technologies | 51 to 200 | | Jtm Construction | 51 to 200 | | Schuchart | 51 to 200 | | Pacific Pile & Marine | 51 to 200 | | Aci Mechanical & Hvac Sales | 51 to 200 | | Krekow Jennings | 51 to 200 | | W.G. Clark Construction | 51 to 200 | | Dovetail General Contractors | 51 to 200 | | Russell Square | 51 to 200 | | Gateway Construction Services | 51 to 200 | | Nelson Electric | 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 Seattle do? Construction is a broad label. The most common NAICS codes among them are 236220 (21%), 236115 (12%) and 236118 (7%). **Figure: What construction companies in Seattle do.** Bars for the share of counted construction companies with each code: 236220 21%, 236115 12%, 236118 7%, 238320 6%, 238110 4%, 238210 4%, 238990 4%. *Share of counted construction companies in Seattle by their NAICS code.* [NAICS 236220](https://enrich.chat/naics/236220/)[NAICS 236115](https://enrich.chat/naics/236115/)[NAICS 236118](https://enrich.chat/naics/236118/)[NAICS 238320](https://enrich.chat/naics/238320/)[NAICS 238110](https://enrich.chat/naics/238110/)[NAICS 238210](https://enrich.chat/naics/238210/)[NAICS 238990](https://enrich.chat/naics/238990/) ## How big are they? 81% of the construction companies counted in Seattle 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 Seattle.** Seven columns for the share of counted construction companies in Seattle in each employee range: 11 to 50 81%, 51 to 200 15%, 201 to 500 2%, 501 to 1,000 2%, 1,001 to 5,000 0%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted construction companies in Seattle in each employee range.* ## How old are they? Most were founded in the 2010s (25%), then the 2000s (24%). **Figure: When construction companies in Seattle were founded.** Eight columns for the share of counted construction companies in Seattle founded in each era: Before 1960 12%, 1960s 5%, 1970s 9%, 1980s 10%, 1990s 13%, 2000s 24%, 2010s 25%, 2020s 2%. *Share of counted construction companies in Seattle by the era they were founded in, for the ones that list a founding year.* ## How construction companies compare - 81% of construction companies in Seattle have 50 or fewer employees, against 71% across other cities on this site. - 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 Seattle? 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 Seattle, WA ``` ### 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 Seattle, WA, 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 Seattle: [Software Companies](https://enrich.chat/companies-in/seattle-wa/software-development/)[Real Estate Companies](https://enrich.chat/companies-in/seattle-wa/real-estate/)[IT Services Companies](https://enrich.chat/companies-in/seattle-wa/it-services-and-it-consulting/)[Nonprofit Organizations](https://enrich.chat/companies-in/seattle-wa/non-profit-organizations/)[Advertising Agencies](https://enrich.chat/companies-in/seattle-wa/advertising-services/)[Technology and Internet Companies](https://enrich.chat/companies-in/seattle-wa/technology-information-and-internet/)[Consulting Firms](https://enrich.chat/companies-in/seattle-wa/business-consulting-and-services/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/seattle-wa/hospitals-and-health-care/)[Financial Services Companies](https://enrich.chat/companies-in/seattle-wa/financial-services/)[Architecture Firms](https://enrich.chat/companies-in/seattle-wa/architecture-and-planning/)[Law Firms](https://enrich.chat/companies-in/seattle-wa/law-practice/)[Legal Services Firms](https://enrich.chat/companies-in/seattle-wa/legal-services/)[Design Firms](https://enrich.chat/companies-in/seattle-wa/design-services/)[Education Organizations](https://enrich.chat/companies-in/seattle-wa/education-administration-programs/)[Food and Beverage Manufacturers](https://enrich.chat/companies-in/seattle-wa/food-and-beverage-manufacturing/)[Facilities Services Companies](https://enrich.chat/companies-in/seattle-wa/facilities-services/)[Colleges and Universities](https://enrich.chat/companies-in/seattle-wa/higher-education/)[Research Services Firms](https://enrich.chat/companies-in/seattle-wa/research-services/)[All of Seattle](https://enrich.chat/companies-in/seattle-wa/) 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 Seattle? Among those counted, they include Mckinstry, Lease Crutcher Lewis, Sellen Construction, Manson Construction and Veca Electric & Technologies, ranked by headcount range. ### How big are construction companies in Seattle? 81% 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 Seattle, WA. ## Try this prompt Find the people at construction companies in Seattle ```text Use www.enrich.chat to find the owners, operations and procurement leaders at construction companies in Seattle, WA, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Software Companies in Seattle](https://enrich.chat/companies-in/seattle-wa/software-development/) - [Real Estate Companies in Seattle](https://enrich.chat/companies-in/seattle-wa/real-estate/) - [IT Services Companies in Seattle](https://enrich.chat/companies-in/seattle-wa/it-services-and-it-consulting/) - [Nonprofit Organizations in Seattle](https://enrich.chat/companies-in/seattle-wa/non-profit-organizations/) - [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/)