> 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/561421/ # NAICS code 561421: Telephone Answering Services The companies classified under NAICS 561421, 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 561421 is the code for Telephone Answering Services, in sector 56: Administrative and Support and Waste Management and Remediation Services. The companies counted under it are mostly small: 75% have 200 or fewer employees, and 60% are headquartered in the United States. ## What is NAICS 561421? NAICS 561421 is the code for Telephone Answering Services. It belongs to sector 56: Administrative and Support and Waste Management and Remediation 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 7389, Business services, in the older SIC system (98%). NAICS is a North American system, so companies outside the US, Canada and Mexico are placed in it by classification. - 48% of the companies counted have 50 or fewer employees, and the middle one is in the 51 to 200 range. - The largest group is headquartered in the United States (60%). Within the US, Florida is the biggest state (13%). - Most were founded in the 2010s (32%), then the 2000s (30%). **Figure: How NAICS 561421 is built.** The code 561421 split into its parts: sector 56, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 561421. Each digit narrows the category.* ## Which companies are classified under NAICS 561421? The biggest by headcount range include Sercom, 5ca, Pluris Mídia, Ascensos and Omni Interactions. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | Sercom | Taboao Da Serra, Brazil | 5,001 to 10,000 | | Pluris Mídia | Sao Paulo, Brazil | 1,001 to 5,000 | | Omni Interactions | Dallas, TX | 1,001 to 5,000 | | Call 4 Health | Delray Beach, FL | 501 to 1,000 | | Ansafone Contact Centers | Santa Ana, CA | 501 to 1,000 | | [Webhelp](https://enrich.chat/company/webhelp/) | Enschede, Netherlands | 501 to 1,000 | | Map Communications | Chesapeake, VA | 501 to 1,000 | | Mediatel | Athens, Greece | 501 to 1,000 | | Appletree Answers | Northbrook, IL | 501 to 1,000 | | Colligo S.P.A | Collegno, Italy | 501 to 1,000 | | China Telecom Americas | Herndon, VA | 201 to 500 | | Optima Solutions Services | Bucharest, Romania | 201 to 500 | | Consumer Energy Solutions | Swansea, United Kingdom | 201 to 500 | | Baja Call Center | San Diego, CA | 201 to 500 | | Dialogo Italia S.R.L | Verona, Italy | 201 to 500 | | Dynava | Helsinki, Finland | 201 to 500 | | Telemed | Atlanta, United States | 201 to 500 | | Receptionhq | Phoenix, AZ | 201 to 500 | | Icall Srl | Rende, Italy | 201 to 500 | | Excelerate360 | Hitchin, United Kingdom | 51 to 200 | | Abby Connect | Las Vegas, NV | 51 to 200 | | Ambs Call Center | Jackson, MI | 51 to 200 | | Curacall | Parlin, Argentina | 51 to 200 | | Call Business Srl | Napoli, Italy | 51 to 200 | | Forge Solutions | Manchester, United Kingdom | 51 to 200 | 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 561421 companies based? The largest groups are headquartered in the United States (60%), the United Kingdom (15%) and Italy (9%). **Figure: Where companies in NAICS 561421 are based.** Bars for the share of counted companies in NAICS 561421 headquartered in each country: United States 60%, United Kingdom 15%, Italy 9%, Finland 3%. *Share of counted companies in NAICS 561421 by headquarters country.* Within the United States, Florida (13%), California (9%) and Virginia (9%) lead. **Figure: US headquarters of companies in NAICS 561421, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 561421 headquartered in each state. The largest are Florida 13%, California 9%, Virginia 9%. *Share of counted US companies in NAICS 561421 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 561421? 48% of them have 50 or fewer employees, and the middle one is in the 51 to 200 range. Companies with fewer than 11 employees are not counted. **Figure: Size of companies in NAICS 561421.** Seven columns for the share of counted companies in NAICS 561421 in each employee range: 11 to 50 48%, 51 to 200 26%, 201 to 500 12%, 501 to 1,000 8%, 1,001 to 5,000 5%, 5,001 to 10,000 1%, 10,001+ 0%. *Share of counted companies in NAICS 561421 in each employee range.* ## How old are NAICS 561421 companies? Most were founded in the 2010s (32%), then the 2000s (30%). **Figure: When companies in NAICS 561421 were founded.** Eight columns for the share of counted companies in NAICS 561421 founded in each era: Before 1960 2%, 1960s 1%, 1970s 3%, 1980s 8%, 1990s 22%, 2000s 30%, 2010s 32%, 2020s 2%. *Share of counted companies in NAICS 561421 by the era they were founded in, for the ones that list a founding year.* ## How NAICS 561421 compares - 48% of companies in NAICS 561421 have 50 or fewer employees, against 60% across all NAICS codes on this site. - Virginia holds 9% of the US companies here, against 2% across all NAICS codes on this site. ## How do NAICS 561421 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 Telecommunications (59%), Advertising Services (15%) and Outsourcing and Offshoring Consulting (12%). **Figure: How companies in NAICS 561421 describe themselves.** Bars for the share of counted companies in NAICS 561421 that give each industry on their public profile: Telecommunications 59%, Advertising Services 15%, Outsourcing and Offshoring Consulting 12%. *Share of counted companies in NAICS 561421 by the industry they list on their public profile.* ## NAICS 561421 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 7389 | Business services | 98% | ## 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 561421 companies? The people to talk to are usually operations, HR and finance 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 561421 (Telephone Answering 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 operations, HR and finance leaders at companies with NAICS code 561421, 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 561422: Telemarketing Bureaus and Other Contact](https://enrich.chat/naics/561422/)[NAICS 561440: Collection Agencies](https://enrich.chat/naics/561440/)[NAICS 561450: Credit Bureaus](https://enrich.chat/naics/561450/)[NAICS 561492: Court Reporting and Stenotype Services](https://enrich.chat/naics/561492/) Others in sector 56: [NAICS 561311: Employment Placement Agencies](https://enrich.chat/naics/561311/)[NAICS 561510: Travel Agencies](https://enrich.chat/naics/561510/)[NAICS 561730: Landscaping Services](https://enrich.chat/naics/561730/)[NAICS 561621: Security Systems Services](https://enrich.chat/naics/561621/)[NAICS 561720: Janitorial Services](https://enrich.chat/naics/561720/)[NAICS 561312: Executive Search Services](https://enrich.chat/naics/561312/)[NAICS 561320: Temporary Help Services](https://enrich.chat/naics/561320/)[NAICS 561710: Exterminating and Pest Control Services](https://enrich.chat/naics/561710/) ## Frequently asked questions ### What is NAICS code 561421? NAICS 561421 is the code for Telephone Answering Services, in sector 56: Administrative and Support and Waste Management and Remediation Services. ### What is the SIC code for NAICS 561421 (Telephone Answering Services)? 98% of the companies counted carry SIC 7389 (Business services), but the two systems do not map one to one. ### Which companies are classified under NAICS 561421? The biggest by headcount range include Sercom, 5ca, Pluris Mídia, Ascensos and Omni Interactions. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 561421 companies based? The largest groups are headquartered in the United States (60%), the United Kingdom (15%) and Italy (9%). ### How big are the companies in NAICS 561421? 48% have 50 or fewer employees, and the middle one is in the 51 to 200 range. Companies with fewer than 11 employees are not counted. ### Is NAICS 561421 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 7389. ## Try this prompt Find the people at NAICS 561421 companies ```text Use www.enrich.chat to find the operations, HR and finance leaders at companies with NAICS code 561421, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 561422](https://enrich.chat/naics/561422/) - [NAICS 561440](https://enrich.chat/naics/561440/) - [NAICS 561450](https://enrich.chat/naics/561450/) - [NAICS 561492](https://enrich.chat/naics/561492/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)