NAICS Code 331511 - Iron Foundries

Government Level - NAICS 6-Digit

Total Companies


Verified Companies


Est. Employment


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NAICS Code 331511 Description

This U.S. industry comprises establishments primarily engaged in pouring molten pig iron or iron alloys into molds to manufacture castings (e.g., cast iron manhole covers, cast iron pipe, cast iron skillets). Establishments in this industry purchase iron made in other establishments.

NAICS Code 331511 - Iron Foundries is a final level code of the “Ferrous Metal Foundries” Sector. There are 416 companies verified as active in this industry in the USA with an estimated employment of 31,756 people.

Industry Sector

Ferrous Metal Foundries

Annual Payroll


Total Revenue


SBA Size Standard

Maximum 1,000 Employees

Parent Category - 5-digit Level (less specific)

Industry Examples of NAICS 331511

Common types of examples within NAICS Code 331511 - Iron Foundries are:

  • Cast iron brake shoes, railroad, manufacturing
  • Cast iron pipe and pipe fittings manufacturing
  • Cast iron railroad car wheels manufacturing
  • Castings, compacted graphite iron, unfinished, manufacturing
  • Castings, malleable iron, unfinished, manufacturing
  • Castings, unfinished iron (e.g., ductile, gray, malleable, semisteel), manufacturing
  • Cooking utensils, cast iron, manufacturing
  • Ductile iron castings, unfinished, manufacturing
  • Ductile iron foundries
  • Fittings, soil and pressure pipe, cast iron, manufacturing
  • Foundries, iron (i.e., ductile, gray, malleable, semisteel)
  • Gray iron foundries
  • Industrial molds, steel ingot, manufacturing
  • Iron castings, unfinished, manufacturing
  • Iron foundries
  • Malleable iron foundries
  • Manhole covers, cast iron, manufacturing
  • Molds for casting steel ingots manufacturing
  • Molds, steel ingot, industrial, manufacturing
  • Pearlitic castings, malleable iron, unfinished, manufacturing
  • Pipe and pipe fittings, cast iron, manufacturing
  • Pipe couplings, cast iron, manufacturing
  • Rolling mill rolls, iron, manufacturing
  • Semisteel foundries
  • Sewer pipe, cast iron, manufacturing
  • Soil pipe, cast iron, manufacturing
  • Water pipe, cast iron, manufacturing

Industry Image

Example photo for industry NAICS 331511 - Iron Foundries . This image represents an activity or product found in this industry.


For some business types, there may be a similar industry to NAICS Code 331511 - Iron Foundries that is a better classification match. Establishments primarily engaged in manufacturing iron castings and further manufacturing them into finished products are classified based on the specific finished product.

Companies compiles comprehensive business data and executive contact leads for businesses within NAICS Code 331511 - Iron Foundries . Some of the leading and most notable companies are listed below. To order a list of companies within NAICS Code 331511 - Iron Foundries for marketing (postal mailing, telemarketing, emailing) or analytics-use, click on the link below to “Buy Business List”. Our data analysts are standing by to assist in your list setup and target marketing.

Industry Executives

Would you like to email executives in NAICS Code 331511 - Iron Foundries ? Below are some of the common job titles available to be targeted.

  • Business Development
  • Chairman
  • C-Level
  • Director
  • Engineering
  • Executive Director
  • Facilities
  • Finance
  • Human Resource
  • IT
  • Manager
  • Marketing
  • Manufacturing
  • Operations
  • Owner
  • Partner
  • President
  • Principal
  • Purchasing
  • Sales
  • Vice President

For specific job title targeting, please provide details in the business list request form.

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USA Import, Export, and Balance of Trade

Import (USD)


Export (USD)


Balance of Trade (USD)


Top Countries by U.S. Imports

China $611,936,797
India $156,856,138
Mexico $104,971,382
France $67,994,769
Canada $44,512,745

Top Countries by U.S. Exports

Canada $247,432,682
Mexico $164,154,325
China $39,888,829
India $19,865,292
Germany $19,370,949

Countries With Highest Trade Surplus

Canada $202,919,937
Mexico $59,182,943
Saudi Arabia $16,962,903
Belgium $8,335,191
Singapore $7,149,007

Countries With Highest Trade Deficit

China -$572,047,968
India -$136,990,846
France -$58,679,955
Japan -$32,069,044
Thailand -$16,849,804

U.S. Total Import value for NAICS Code 331511 is $1,217,587,622. China, India, and Mexico accounted for the top imports of Iron Foundries in 2018.

U.S. Total Export value for this industry is $731,735,291. Canada, Mexico, and China accounted for the top exports of Iron Foundries in 2018.

Questions & Answers

  • What is the SBA size standard for NAICS 331511?

    Businesses up to 1,000 Employees in size are considered small businesses by SBA.

  • How many active businesses operate in NAICS Code 331511?

    There are 416 verified business locations operating primarily in this industry.

  • What was the total revenue for NAICS Code 331511?

    In 2017 the total revenue for Iron Foundries was $9,075,033,000

  • What was the annual payroll for NAICS Code 331511?

    In 2017 the annual payroll for Iron Foundries was $1,829,450,000

  • How many people work in NAICS Code 331511?

    The number of reported paid employees is 31,756.