What is SIC Full Form? SIC Classification by Activity 

Stephanie Carter

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sic full form

The sic full form is “Standard Industrial Classification.” The codes are four-digit numbers that help the government quickly put businesses into groups based on the types of companies they are. The IRS, the U.S. Census Bureau, and other groups use SIC numbers. Let’s know more about sic full form.

What is SIC full form?

SIC full form is Standard Industrial Classification. The Standard Industrial Classification system, which was created by the US in 1937, is what NIC stands for. SIC codes represent various business types. Within the United States, SIC Codes make it easy to group businesses into regular categories. Many other countries and groups have also started using SIC Codes.

SIC Focus on Industry

SIC Focus on Industry

The word “Industrial” makes it clear that the classification system is mostly for business actions related to manufacturing and industry. Many countries relied on industrial production around the middle of the 20th century, when SIC made its debut. 

SIC Classification by Activity

The word “Classification” in the SIC clarifies that its main job is to group businesses based on their main economic activities. This is organized in a hierarchy, with sectors, subsectors, and operations within each industry. Each business has its unique number code, which makes it easier to organize and find economic data. 

SIC Historical Background

SIC Historical Background

The roots of SIC can be found in early 20th-century efforts to group businesses for statistics and legal reasons. The classification system changed over time, along with the countries that used it. Changes in industry organization, new technologies, and shifting economic goals led to updates and revisions to SIC. 

Tradition and Change of SIC

Modern classification systems like the North American Industry Classification System (NAICS) have mostly replaced the original Standard Industrial Classification system. However, the name “Standard Industrial Classification” is still important. 


SIC full form the name “Standard Industrial Classification” perfectly describes the system’s goal: to make it easier to use statistics and analysis to classify business tasks uniformly. It shows how economic classification systems have changed and help make tracking data, research, and policymaking more consistent across many businesses and areas.


What does the SIC system try to do? 

Its main purpose was to group companies into categories based on their jobs, mainly in the production and industrial sectors. 

How are SIC numbers and NAICS codes different? 

SIC codes are four-digit numbers that classify enterprises by kind. However, six-digit NAICS numbers provide a more detailed explanation.

Why did they come up with the SIC system? 

The SIC system began in the US in 1937 to create a consistent way to group businesses for economic analysis and government regulation. 

Since when did people start using SIC codes?

It started focusing on industries like textiles, steel, and technology, but as countries changed, so did the range of SIC codes. 

Who has SIC numbers these days? 

Groups like the IRS, the U.S. Census Bureau, and many others worldwide use SIC codes for data reporting, economic study, and regulation.