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Business phone system for security systems services in Tennessee

143 security systems services operated in Tennessee in 2023. Where they are, how big their teams are, and what phone service costs them.

Establishments
143CBP 2023
Employees
2,686mid-March 2023
Per 100k residents
2.0U.S. 2.1
State rank
16th of 51by count

Security systems services in Tennessee by the numbers

County Business Patterns counts 143 establishments in Tennessee classified as Security Systems Services (except Locksmiths) (NAICS 561621) for 2023. They employed 2,686 people in mid-March and reported $159.3 million in annual payroll. That is the 16th highest count among the 51 states and DC with published figures. Security systems services make up 0.10% of the 150,129 business establishments in the state.

Per 100,000 residents (2024 estimate) Tennessee has 2.0 security systems services, 5.9% below the national rate of 2.1. The average establishment has 18.8 employees against 18.0 nationally. Payroll per employee is $59,315, 15.4% below the U.S. figure of $70,074.

Security systems services: Tennessee compared with the U.S., 2023
MeasureTennesseeUnited States
Establishments1437,151
Mid-March employees2,686128,462
Annual payroll$159,320,000$9,001,839,000
Employees per establishment18.818.0
Payroll per employee$59,315$70,074
Establishments per 100,000 residents2.02.1

Census County Business Patterns 2023 (mid-March employment; annual payroll). Employees and payroll flagged high-noise are shown but not used in the text. Residents: Census Vintage 2024 estimates.

Where security systems services in Tennessee are concentrated

Census published security systems company counts for 8 metro or micropolitan areas that include part of Tennessee. The largest is Nashville, TN, with 45 establishments. Single-state metro and micropolitan areas account for 53% of the statewide total; the rest are outside any published area or in areas Census suppressed.

Security systems services by metro or micropolitan area, Tennessee, 2023
AreaEstablishmentsEmployeesPer 100k residents
Nashville, TN458872.1
Memphis, TN-MS-AR394282.9
Knoxville, TN209982.1
Chattanooga, TN-GA111501.9
Jackson, TN7663.8
Kingsport, TN-VA6—1.9
Clarksville, TN-KY5311.4
Johnson City, TN4—1.9

Source: Census County Business Patterns 2023; population from Census Vintage 2024 estimates.

Team sizes at security systems services in Tennessee

43.0% of Tennessee's security systems services with employees had fewer than five people in March 2023, compared with 48.4% nationally. 64.8% had fewer than ten. At that size the phone is shared, so routing (who rings, when, and what happens after hours) matters more than the number of desk phones.

Security systems services in Tennessee by employment size, 2023
Employment sizeEstablishmentsShareU.S. share
1–4 employees6143.0%48.4%
5–9 employees3121.8%19.3%
10–19 employees2014.1%13.9%
20–49 employees2114.8%11.1%
50 or more employees96.3%7.3%

Employment-size classes count establishments by mid-March 2023 employment. Establishments with no March employees are excluded from the size classes, so shares are of establishments with employees. Source: Census County Business Patterns 2023.

What security systems services in Tennessee use the phone for

Security companies take calls about new installations, alarms and service problems. Existing customers expect quick help when a system misbehaves.

Calls a security systems company in Tennessee might handle in a typical week include:

Business texting for security systems services

Companies text appointment confirmations and service updates.

Texting from a local number in Tennessee requires carrier registration (10DLC), a one-time $49 fee on Callata.

Callata vs. per-seat pricing for security systems services in Tennessee

Security systems services in Tennessee average 18.8 employees, so the comparison uses a 19-person team. On a per-user plan that headcount sets the bill: $474.05 a month on Ooma Office Pro or $570.00 on RingCentral RingEX Core at list price (checked September 28, 2026). Callata comes to $379.00 a month for 19 users ($99 a month with 5 users included, then $20 per additional user), below both.

Over a year, that is $2,292 less than RingCentral for a security systems company in Tennessee of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.

Monthly list price for a 19-person security systems company
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$379.00$4,548.00
Quo (Starter)$19.00 per user$361.00$4,332.00
Nextiva (Core)$23.00 per user$437.00$5,244.00
Ooma (Office Pro)$24.95 per user$474.05$5,688.60
Dialpad (Standard)$27.00 per user$513.00$6,156.00
RingCentral (RingEX Core)$30.00 per user$570.00$6,840.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Area codes in Tennessee

Tennessee has 8 geographic area codes in service according to NANPA. Callata includes up to 3 local numbers, so a security systems company can hold a number in more than one of them.

Area codes in Tennessee by assigned exchanges
Area codeExchangesTime zoneIn service sinceOverlay with
615781Central1954629
423764Eastern and Central1995729
901616Central1947none
931538Eastern and Central1997none
865506Eastern1999none
731395Central2001none
629197Central2015615
7290Eastern and Central2025423

Exchanges are NANPA-assigned central office codes (NPA-NXX) in the rate centers matched to the area's named places. Source: NANPA utilized code and NPA reports.

How Callata works for security systems services in Tennessee

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

Porting a number you already use in Tennessee is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

Frequently asked questions

How many security systems services are in Tennessee?

143 in 2023, according to Census County Business Patterns. They employed 2,686 people in mid-March.

Which Tennessee metro area has the most security systems services?

Nashville, TN, with 45 establishments in 2023.

What does a phone system cost a 19-person security systems company?

$570.00 a month on RingCentral RingEX Core or $474.05 on Ooma Office Pro at month-to-month list prices (checked September 28, 2026); $379.00 on Callata ($99 a month with 5 users included, then $20 per additional user).

Do I need to register to text customers from a Tennessee number?

Yes. US carriers require business texting from local numbers to be registered (10DLC). On Callata the registration is a one-time $49 fee, and texting turns on once it is approved.