> 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/sic/2431/ # SIC code 2431: Manufacturing millwork The companies classified under SIC 2431, where they are based, how big they are and how the code maps to NAICS. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** SIC 2431 is the Standard Industrial Classification code for Manufacturing millwork, in division D (Manufacturing). The companies counted under it are mostly very small: 62% have 50 or fewer employees. ## What is SIC 2431? SIC 2431 is the Standard Industrial Classification code for Manufacturing millwork. It sits in division D, Manufacturing. The first two digits name the major group, and the last two narrow it to a single industry. Most of the companies counted also carry NAICS 321918 (65%). - 62% of the companies counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. - The largest group is headquartered in the United States (63%). Within the US, California is the biggest state (8%). - Most were founded in the before 1960 (19%), then the 2000s (17%). **Figure: How SIC 2431 is built.** The code 2431 split into its parts: major group 24, then industry group and industry. It sits in division D, Manufacturing. *The four digits of SIC 2431.* ## Which companies are classified under SIC 2431? The biggest by headcount range include Masonite, Pella, Andersen, American Woodmark and Woodgrain. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | [Masonite](https://enrich.chat/company/masonite/) | Tampa, FL | 10,001+ | | Pella | Pella, IA | 10,001+ | | Andersen | Bayport, MN | 10,001+ | | American Woodmark | Winchester, VA | 5,001 to 10,000 | | Woodgrain | Fruitland, ID | 1,001 to 5,000 | | The Cook & Boardman Group | Winston-Salem, NC | 1,001 to 5,000 | | Conestoga Wood Specialties | East Earl, PA | 1,001 to 5,000 | | Ecmd | North Wilkesboro, NC | 501 to 1,000 | | Randa Portas Molduras E Compensados | Bituruna, Brazil | 501 to 1,000 | | Evermark | Suwanee, GA | 501 to 1,000 | | The Marwin | West Columbia, SC | 501 to 1,000 | | Trustile Doors | Denver, CO | 201 to 500 | | Bertolotto S.P.A | Torre San Giorgio, China | 201 to 500 | | Glenn Rieder | West Allis, WI | 201 to 500 | | Jbi Interiors | Long Beach, CA | 201 to 500 | | Lynden Door | Lynden, WA | 201 to 500 | | Distinction Doors | Barnsley, United Kingdom | 201 to 500 | | Bird Stairs | Fredericton, Canada | 201 to 500 | | Znd Uk | Rotherham, United Kingdom | 201 to 500 | | Bayer Built Woodworks | Belgrade, MN | 201 to 500 | | Menzner Hardwoods | Marathon, WI | 201 to 500 | | Friedr. Ischebeck | Ennepetal, Germany | 201 to 500 | | Garant Türen Und Zargen | Amt Wachsenburg, Germany | 201 to 500 | | Kempsville Building Materials | Chesapeake, VA | 201 to 500 | | Central Woodwork | Nashville, TN | 201 to 500 | 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. ## Where are SIC 2431 companies based? The largest groups are headquartered in the United States (63%), the United Kingdom (17%) and Italy (5%). **Figure: Where companies in SIC 2431 are based.** Bars for the share of counted companies in SIC 2431 headquartered in each country: United States 63%, United Kingdom 17%, Italy 5%, Germany 4%, Canada 4%, Switzerland 1%. *Share of counted companies in SIC 2431 by headquarters country.* Within the United States, California (8%), Florida (8%) and North Carolina (6%) lead. **Figure: US headquarters of companies in SIC 2431, by state.** A tile map of the United States shaded by the share of counted US companies in SIC 2431 headquartered in each state. The largest are California 8%, Florida 8%, North Carolina 6%. *Share of counted US companies in SIC 2431 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for SIC 2431? 62% of them 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 companies in SIC 2431.** Seven columns for the share of counted companies in SIC 2431 in each employee range: 11 to 50 62%, 51 to 200 28%, 201 to 500 6%, 501 to 1,000 2%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 1%. *Share of counted companies in SIC 2431 in each employee range.* ## How old are SIC 2431 companies? Most were founded in the before 1960 (19%), then the 2000s (17%). **Figure: When companies in SIC 2431 were founded.** Eight columns for the share of counted companies in SIC 2431 founded in each era: Before 1960 19%, 1960s 8%, 1970s 11%, 1980s 15%, 1990s 16%, 2000s 17%, 2010s 15%, 2020s 0%. *Share of counted companies in SIC 2431 by the era they were founded in, for the ones that list a founding year.* ## How SIC 2431 compares - 15% were founded in 2010 or later, against 30% across all NAICS codes on this site. - North Carolina holds 6% of the US companies here, against 3% across all NAICS codes on this site. ## SIC 2431 and the NAICS system NAICS replaced SIC as the U.S. federal standard in 1997, but the two do not line up one to one. These are the NAICS codes seen most among the companies counted under SIC 2431. | Code | Title | Share of counted | | --- | --- | --- | | NAICS 321918 | Other Millwork (Including Flooring) | 65% | | [NAICS 321911](https://enrich.chat/naics/321911/) | Wood Window and Door Manufacturing | 24% | | [NAICS 337110](https://enrich.chat/naics/337110/) | Wood Kitchen Cabinet and Countertop Manufacturing | 3% | | NAICS 337127 | Institutional Furniture Manufacturing | 3% | ## How do SIC 2431 companies describe themselves? A code is assigned by classification, and a company does not choose its own, so the label a company uses for itself can differ. The most common labels here are Construction (45%), Wholesale Building Materials (21%) and Building Materials (7%). **Figure: How companies in SIC 2431 describe themselves.** Bars for the share of counted companies in SIC 2431 that give each industry on their public profile: Construction 45%, Wholesale Building Materials 21%, Building Materials 7%, Furniture and Home Furnishings Manufacturing 6%, Wood Product Manufacturing 4%. *Share of counted companies in SIC 2431 by the industry they list on their public profile.* ## Where SIC codes come from SIC was created in the 1930s and is now historical: the U.S. government replaced it with NAICS in 1997. It is still widely used, and the SEC still assigns a SIC code to every company that files on EDGAR. The full list is in the [SIC manual](https://www.osha.gov/data/sic-manual) that OSHA hosts, and the Census Bureau's [guide to understanding NAICS](https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html) explains how the two relate. ## How do you reach the people at SIC 2431 companies? The people to talk to are usually operations, supply chain and procurement leaders. You can 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 companies with SIC code 2431 (Manufacturing millwork) ``` ### 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 operations, supply chain and procurement leaders at companies with SIC code 2431, 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 ``` ## Frequently asked questions ### What is SIC code 2431? SIC 2431 is the code for Manufacturing millwork, in division D (Manufacturing). ### What is the NAICS code for SIC 2431 (Manufacturing millwork)? 65% of the companies counted carry NAICS 321918 (Other Millwork (Including Flooring)), but the two systems do not map one to one. ### Which companies are classified under SIC 2431? The biggest by headcount range include Masonite, Pella, Andersen, American Woodmark and Woodgrain. The page lists 25 with links to their profiles where we have them. ### How big are the companies in SIC 2431? 62% 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. ### Is SIC still used? Yes. The U.S. government replaced SIC with NAICS in 1997, but SIC codes are still common in business databases, and the SEC still uses them on EDGAR. ## Try this prompt Find the people at SIC 2431 companies ```text Use www.enrich.chat to find the operations, supply chain and procurement leaders at companies with SIC code 2431, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)