> 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/naics/541511/ # NAICS code 541511: Custom Computer Programming Services The companies classified under NAICS 541511, where they are based, how big they are and how the code maps to SIC. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** NAICS 541511 is the code for Custom Computer Programming Services, in sector 54: Professional, Scientific, and Technical Services. The companies counted under it are mostly very small: 52% have 50 or fewer employees, and 47% are headquartered in the United States. ## What is NAICS 541511? NAICS 541511 is the code for Custom Computer Programming Services. It belongs to sector 54: Professional, Scientific, and Technical Services. NAICS, the North American Industry Classification System, is the standard U.S. government agencies use to sort businesses by what they mainly do, and each digit narrows the category. Most of the companies counted also carry SIC 7371, Custom computer programming, in the older SIC system (79%). NAICS is a North American system, so companies outside the US, Canada and Mexico are placed in it by classification. - 52% 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 (47%). Within the US, California is the biggest state (22%). - Most were founded in the 2010s (47%), then the 2000s (28%). **Figure: How NAICS 541511 is built.** The code 541511 split into its parts: sector 54, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 541511. Each digit narrows the category.* ## Which companies are classified under NAICS 541511? The biggest by headcount range include Wipro, Tech Mahindra, Salesforce, LTIMindtree and SAP. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | [Wipro](https://enrich.chat/company/wipro/) | Bangalore, India | 10,001+ | | [Tech Mahindra](https://enrich.chat/company/tech-mahindra/) | Pune, India | 10,001+ | | [Salesforce](https://enrich.chat/company/salesforce/) | San Francisco, CA | 10,001+ | | [LTIMindtree](https://enrich.chat/company/ltimindtree/) | Powai Mumbai, India | 10,001+ | | [EPAM Systems](https://enrich.chat/company/epam-systems/) | Newtown, PA | 10,001+ | | [Persistent Systems](https://enrich.chat/company/persistent-systems/) | Pune, India | 10,001+ | | [Nagarro](https://enrich.chat/company/nagarro/) | Munich, Germany | 10,001+ | | [Mphasis](https://enrich.chat/company/mphasis/) | Bangalore, India | 10,001+ | | [Coforge](https://enrich.chat/company/coforge/) | Noida, India | 10,001+ | | [Inetum](https://enrich.chat/company/inetum/) | St.-ouen, France | 10,001+ | | [Workday](https://enrich.chat/company/workday/) | Pleasanton, CA | 10,001+ | | [GlobalLogic](https://enrich.chat/company/globallogic/) | Santa Clara, CA | 10,001+ | | [Lenovo](https://enrich.chat/company/lenovo/) | Morrisville, NC | 10,001+ | | [Zensar Technologies](https://enrich.chat/company/zensar-technologies/) | Pune, India | 10,001+ | | [Amdocs](https://enrich.chat/company/amdocs/) | Chesterfield, MO | 10,001+ | | [IGT Solutions](https://enrich.chat/company/igt-solutions/) | Gurugram, India | 10,001+ | | [Bosch](https://enrich.chat/company/bosch/) | Bangalore, India | 10,001+ | | [Shopify](https://enrich.chat/company/shopify-store/) | Ottawa, Canada | 10,001+ | | [Innova Solutions](https://enrich.chat/company/innova-solutions/) | Atlanta, GA | 10,001+ | | [Synopsys](https://enrich.chat/company/synopsys/) | Sunnyvale, CA | 10,001+ | | [SONDA](https://enrich.chat/company/sonda/) | Santiago, Chile | 10,001+ | | [Thoughtworks Holding](https://enrich.chat/company/thoughtworks-holding/) | Chicago, IL | 10,001+ | | [Tata Elxsi](https://enrich.chat/company/tata-elxsi/) | Bangalore, India | 10,001+ | | [NCR](https://enrich.chat/company/ncr/) | Atlanta, GA | 10,001+ | | [Open Text](https://enrich.chat/company/open-text/) | Waterloo, Canada | 10,001+ | 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 NAICS 541511 companies based? The largest groups are headquartered in the United States (47%), India (10%) and Germany (7%). **Figure: Where companies in NAICS 541511 are based.** Bars for the share of counted companies in NAICS 541511 headquartered in each country: United States 47%, India 10%, Germany 7%, United Kingdom 7%, Italy 4%, France 4%, Canada 4%, Czechia 1%. *Share of counted companies in NAICS 541511 by headquarters country.* Within the United States, California (22%), Texas (8%) and New York (7%) lead. **Figure: US headquarters of companies in NAICS 541511, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 541511 headquartered in each state. The largest are California 22%, Texas 8%, New York 7%. *Share of counted US companies in NAICS 541511 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 541511? 52% 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 NAICS 541511.** Seven columns for the share of counted companies in NAICS 541511 in each employee range: 11 to 50 52%, 51 to 200 33%, 201 to 500 9%, 501 to 1,000 4%, 1,001 to 5,000 2%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted companies in NAICS 541511 in each employee range.* ## How old are NAICS 541511 companies? Most were founded in the 2010s (47%), then the 2000s (28%). **Figure: When companies in NAICS 541511 were founded.** Eight columns for the share of counted companies in NAICS 541511 founded in each era: Before 1960 0%, 1960s 0%, 1970s 1%, 1980s 5%, 1990s 15%, 2000s 28%, 2010s 47%, 2020s 4%. *Share of counted companies in NAICS 541511 by the era they were founded in, for the ones that list a founding year.* ## How NAICS 541511 compares - 52% of companies in NAICS 541511 have 50 or fewer employees, against 60% across all NAICS codes on this site. - 51% were founded in 2010 or later, against 30% across all NAICS codes on this site. - California holds 22% of the US companies here, against 14% across all NAICS codes on this site. ## How do NAICS 541511 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 Software Development (39%), IT Services and IT Consulting (38%) and Information Technology and Services (9%). **Figure: How companies in NAICS 541511 describe themselves.** Bars for the share of counted companies in NAICS 541511 that give each industry on their public profile: Software Development 39%, IT Services and IT Consulting 38%, Information Technology and Services 9%, Technology; Information and Internet 8%. *Share of counted companies in NAICS 541511 by the industry they list on their public profile.* ## NAICS 541511 and the SIC system NAICS replaced SIC in 1997, but the two do not line up one to one: companies filed under one NAICS code can carry several SIC codes. These are the ones seen most. | Code | Title | Share of counted | | --- | --- | --- | | SIC 7371 | Custom computer programming | 79% | | [SIC 7379](https://enrich.chat/naics/541512/) | Computer related services | 7% | ## Where NAICS codes come from NAICS is maintained by the U.S. Census Bureau with Canada and Mexico and revised every five years; the current edition is NAICS 2022. To check exactly what a code includes, search the [official NAICS index](https://www.census.gov/naics/) or read the Census Bureau's [guide to understanding NAICS](https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html). Pick a code by what a company mostly does, not by who it sells to. ## How do you reach the people at NAICS 541511 companies? The people to talk to are usually engineering, delivery and revenue leaders. You can build the list from this code 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 NAICS code 541511 (Custom Computer Programming Services) ``` ### 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 engineering, delivery and revenue leaders at companies with NAICS code 541511, 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 Codes next to it: [NAICS 541512: Computer Systems Design Services](https://enrich.chat/naics/541512/)[NAICS 541519: Other Computer Related Services](https://enrich.chat/naics/541519/) Others in sector 54: [NAICS 541110: Offices of Lawyers](https://enrich.chat/naics/541110/)[NAICS 541613: Marketing Consulting Services](https://enrich.chat/naics/541613/)[NAICS 541810: Advertising Agencies](https://enrich.chat/naics/541810/)[NAICS 541820: Public Relations Agencies](https://enrich.chat/naics/541820/)[NAICS 541310: Architectural Services](https://enrich.chat/naics/541310/)[NAICS 541219: Other Accounting Services](https://enrich.chat/naics/541219/)[NAICS 541320: Landscape Architectural Services](https://enrich.chat/naics/541320/)[NAICS 541940: Veterinary Services](https://enrich.chat/naics/541940/) NAICS 541511 by state: [California](https://enrich.chat/naics/541511/california/)[Texas](https://enrich.chat/naics/541511/texas/)[New York](https://enrich.chat/naics/541511/new-york/)[Florida](https://enrich.chat/naics/541511/florida/)[Virginia](https://enrich.chat/naics/541511/virginia/)[New Jersey](https://enrich.chat/naics/541511/new-jersey/)[Massachusetts](https://enrich.chat/naics/541511/massachusetts/)[Georgia](https://enrich.chat/naics/541511/georgia/)[Illinois](https://enrich.chat/naics/541511/illinois/)[Washington](https://enrich.chat/naics/541511/washington/)[Pennsylvania](https://enrich.chat/naics/541511/pennsylvania/)[Maryland](https://enrich.chat/naics/541511/maryland/)[Colorado](https://enrich.chat/naics/541511/colorado/)[Ohio](https://enrich.chat/naics/541511/ohio/) ## Frequently asked questions ### What is NAICS code 541511? NAICS 541511 is the code for Custom Computer Programming Services, in sector 54: Professional, Scientific, and Technical Services. ### What is the SIC code for NAICS 541511 (Custom Computer Programming Services)? 79% of the companies counted carry SIC 7371 (Custom computer programming), but the two systems do not map one to one. ### Which companies are classified under NAICS 541511? The biggest by headcount range include Wipro, Tech Mahindra, Salesforce, LTIMindtree and SAP. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 541511 companies based? The largest groups are headquartered in the United States (47%), India (10%) and Germany (7%). ### How big are the companies in NAICS 541511? 52% 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 NAICS 541511 the same as a SIC code? No. NAICS replaced SIC as the U.S. federal standard in 1997, and the two do not map one to one. The SIC code seen most among these companies is 7371. ## Try this prompt Find the people at NAICS 541511 companies ```text Use www.enrich.chat to find the engineering, delivery and revenue leaders at companies with NAICS code 541511, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 541512](https://enrich.chat/naics/541512/) - [NAICS 541519](https://enrich.chat/naics/541519/) - [NAICS 541511 in California](https://enrich.chat/naics/541511/california/) - [NAICS 541511 in Texas](https://enrich.chat/naics/541511/texas/) - [NAICS 541511 in New York](https://enrich.chat/naics/541511/new-york/) - [NAICS 541511 in Florida](https://enrich.chat/naics/541511/florida/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)