> 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/541213/ # NAICS code 541213: Tax Preparation Services The companies classified under NAICS 541213, 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 541213 is the code for Tax Preparation Services, in sector 54: Professional, Scientific, and Technical Services. The companies counted under it are mostly very small: 83% have 50 or fewer employees, and 95% are headquartered in the United States. ## What is NAICS 541213? NAICS 541213 is the code for Tax Preparation 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 7291, Tax return preparation services, in the older SIC system (100%). - 83% 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 (95%). Within the US, California is the biggest state (15%). - Most were founded in the 2010s (48%), then the 2000s (29%). **Figure: How NAICS 541213 is built.** The code 541213 split into its parts: sector 54, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 541213. Each digit narrows the category.* ## Which companies are classified under NAICS 541213? The biggest by headcount range include Block Advisors, Optima Tax Relief, Oak Group, Indinero and Abgi Usa. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | Block Advisors | Kansas City, MO | 1,001 to 5,000 | | Optima Tax Relief | Santa Ana, CA | 501 to 1,000 | | Indinero | Los Angeles, United States | 201 to 500 | | Abgi Usa | Houston, TX | 201 to 500 | | Taxslayer | Augusta, GA | 201 to 500 | | American Institute Of Certified Tax Planners | San Diego, CA | 201 to 500 | | Alleviate Tax | Irvine, CA | 201 to 500 | | Redwood Tax Specialists | Cornelius, NC | 201 to 500 | | Sansiveri, Kimball & Co., LLP | Providence, RI | 51 to 200 | | Idealtax | Costa Mesa, CA | 51 to 200 | | Tax Goddess Business Services, Pc | Scottsdale, United States | 51 to 200 | | In-Sync Group | Farnham, United Kingdom | 51 to 200 | | Metrix Group LLP | Edmonton, Canada | 51 to 200 | | Paramount Tax & Accounting | Harrisburg, PA | 51 to 200 | | Accelerated Tax Solutions | North Miami Beach, FL | 51 to 200 | | Boomtax | Corpus Christi, TX | 51 to 200 | | Tax Assistance Group | Jacksonville, FL | 51 to 200 | | Global Tax Service | Indianapolis, IN | 51 to 200 | | Accutax | Largo, FL | 51 to 200 | | Granttree | London, United Kingdom | 11 to 50 | | Greenback Expat Tax Services | Grandville, MI | 11 to 50 | | Neo.Tax | Mountain View, CA | 11 to 50 | | Taxops | Lakewood, CO | 11 to 50 | | Chapman Associates | Schaumburg, IL | 11 to 50 | | Tax Hive | Lindon, UT | 11 to 50 | 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 541213 companies based? The largest groups are headquartered in the United States (95%), Canada (3%) and the United Kingdom (2%). **Figure: Where companies in NAICS 541213 are based.** Bars for the share of counted companies in NAICS 541213 headquartered in each country: United States 95%, Canada 3%, United Kingdom 2%. *Share of counted companies in NAICS 541213 by headquarters country.* Within the United States, California (15%), Texas (15%) and Florida (11%) lead. **Figure: US headquarters of companies in NAICS 541213, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 541213 headquartered in each state. The largest are California 15%, Texas 15%, Florida 11%. *Share of counted US companies in NAICS 541213 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 541213? 83% 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 541213.** Seven columns for the share of counted companies in NAICS 541213 in each employee range: 11 to 50 83%, 51 to 200 11%, 201 to 500 5%, 501 to 1,000 1%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted companies in NAICS 541213 in each employee range.* ## How old are NAICS 541213 companies? Most were founded in the 2010s (48%), then the 2000s (29%). **Figure: When companies in NAICS 541213 were founded.** Eight columns for the share of counted companies in NAICS 541213 founded in each era: Before 1960 1%, 1960s 2%, 1970s 3%, 1980s 6%, 1990s 9%, 2000s 29%, 2010s 48%, 2020s 1%. *Share of counted companies in NAICS 541213 by the era they were founded in, for the ones that list a founding year.* ## How NAICS 541213 compares - 83% of companies in NAICS 541213 have 50 or fewer employees, against 60% across all NAICS codes on this site. - 49% were founded in 2010 or later, against 30% across all NAICS codes on this site. - Texas holds 15% of the US companies here, against 8% across all NAICS codes on this site. ## How do NAICS 541213 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 Accounting (48%), Financial Services (31%) and Individual and Family Services (14%). **Figure: How companies in NAICS 541213 describe themselves.** Bars for the share of counted companies in NAICS 541213 that give each industry on their public profile: Accounting 48%, Financial Services 31%, Individual and Family Services 14%. *Share of counted companies in NAICS 541213 by the industry they list on their public profile.* ## NAICS 541213 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 7291 | Tax return preparation services | 100% | ## 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 541213 companies? The people to talk to are usually partners and heads of operations. 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 541213 (Tax Preparation 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 partners and heads of operations at companies with NAICS code 541213, 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 541211: Offices of Certified Public Accountants](https://enrich.chat/naics/541211/)[NAICS 541214: Payroll Services](https://enrich.chat/naics/541214/)[NAICS 541219: Other Accounting Services](https://enrich.chat/naics/541219/) Others in sector 54: [NAICS 541512: Computer Systems Design Services](https://enrich.chat/naics/541512/)[NAICS 541511: Custom Computer Programming Services](https://enrich.chat/naics/541511/)[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 541320: Landscape Architectural Services](https://enrich.chat/naics/541320/) ## Frequently asked questions ### What is NAICS code 541213? NAICS 541213 is the code for Tax Preparation Services, in sector 54: Professional, Scientific, and Technical Services. ### What is the SIC code for NAICS 541213 (Tax Preparation Services)? 100% of the companies counted carry SIC 7291 (Tax return preparation services), but the two systems do not map one to one. ### Which companies are classified under NAICS 541213? The biggest by headcount range include Block Advisors, Optima Tax Relief, Oak Group, Indinero and Abgi Usa. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 541213 companies based? The largest groups are headquartered in the United States (95%), Canada (3%) and the United Kingdom (2%). ### How big are the companies in NAICS 541213? 83% 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. ### How do I find a company's NAICS code? Search the official NAICS index at the U.S. Census Bureau for the code that matches what the company mostly does. Public companies in the US also list a SIC code in their SEC EDGAR profile. ## Try this prompt Find the people at NAICS 541213 companies ```text Use www.enrich.chat to find the partners and heads of operations at companies with NAICS code 541213, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 541211](https://enrich.chat/naics/541211/) - [NAICS 541214](https://enrich.chat/naics/541214/) - [NAICS 541219](https://enrich.chat/naics/541219/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)