NAICS 541511
Custom Computer Programming Services
RampedUp holds 442,218 professional profiles classified to 2022 NAICS 541511 as of the build — 0.2% of all profiles carrying a NAICS classification. Of those, 226,184 carry a professional email address and 41,249 carry a mobile number. Ranked #88 of 370 codes.
What NAICS 541511 covers
This U.S. industry comprises establishments primarily engaged in writing, modifying, testing, and supporting software to meet the needs of a particular customer. Cross-References. Establishments primarily engaged in--
Official 2022 NAICS definition. Sector 54 — Professional, Scientific, and Technical Services. Mapped in the RampedUp taxonomy to Computer Games.
What the records carry
Field coverage for NAICS 541511, August 2026 build.
| Field on the record | Records | Share of 541511 | Share across all NAICS |
|---|---|---|---|
| Professional email | 226,184 | 51.1% | 50.8% |
| Personal email | 81,337 | 18.4% | 16.0% |
| Phone (any) | 303,120 | 68.5% | 89.3% |
| Mobile number | 41,249 | 9.3% | 13.4% |
| Primary contact record | 313,384 | 70.9% | 63.9% |
| All five present on one record | 18,510 | 4.2% | 4.5% |
Counts come from the RampedUp August 2026 build. RampedUp's crosswalk maps each 6-digit 2022 NAICS code to exactly one industry in its own taxonomy, so this is that industry's population viewed under the NAICS classification — not a separate tally.
Comparable NAICS codes
The codes ranked either side of 541511 by profile count.
Questions about NAICS 541511
What is NAICS code 541511?
541511 — Custom Computer Programming Services. This U.S. industry comprises establishments primarily engaged in writing, modifying, testing, and supporting software to meet the needs of a particular customer. Cross-References. Establishments primarily engaged in--
How many contacts does RampedUp have for NAICS 541511?
442,218 professional profiles as of the August 2026 build, which is 0.2% of all profiles carrying a NAICS classification. Counts come from the RampedUp August 2026 build. RampedUp's crosswalk maps each 6-digit 2022 NAICS code to exactly one industry in its own taxonomy, so this is that industry's population viewed under the NAICS classification — not a separate tally.
What contact details are available for NAICS 541511?
226,184 records carry a professional email address (51.1%), 81,337 a personal email address, 303,120 a phone number and 41,249 a mobile number.
Need this cross-filtered?
Exact counts for NAICS 541511 on its own. For this code combined with a title level, company size or a required field, ask and we will run it against the live file.