CallataGuidesBusiness phone system for security systems services in Baltimore, MD
Security systems services in the Baltimore-Columbia-Towson, MD metro area: 91 establishments in 2023, the local area codes, and what phone service costs a 28-person team.
- Establishments
- 91CBP 2023
- Employees
- 2,507mid-March 2023
- Per 100k residents
- 3.2U.S. 2.1
- Rank
- 14th of 298areas by count
How many security systems services are in Baltimore, MD?
County Business Patterns counts 91 security systems services (NAICS 561621, Security Systems Services (except Locksmiths)) in the Baltimore-Columbia-Towson, MD metro area for 2023. Together they reported 2,507 mid-March employees and $186.9 million of payroll for the year. That ranks 14th of the 298 metro and micropolitan areas where Census published a count for this industry.
With 2.9 million residents in the Census 2024 estimate, that is 3.2 security systems services per 100,000 people, 51.4% above the national rate of 2.1. Establishments average 27.5 employees, 53.4% above the U.S. average of 18.0. Payroll per employee comes to $74,556, 6.4% above the national $70,074.
| Measure | Baltimore, MD | Maryland | United States |
|---|---|---|---|
| Establishments | 91 | 167 | 7,151 |
| Mid-March employees | 2,507 (moderate noise) | 3,681 (moderate noise) | 128,462 |
| Annual payroll | $186,911,000 (moderate noise) | $281,941,000 (moderate noise) | $9,001,839,000 |
| Employees per establishment | 27.5 | 22.0 | 18.0 |
| Payroll per employee | $74,556 | $76,594 | $70,074 |
| Establishments per 100,000 residents | 3.2 | 2.7 | 2.1 |
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.
Establishment size: security systems services in Baltimore, MD
Of the security systems services in Baltimore, MD that had employees in March 2023, 44.9% had fewer than five (the U.S. share is 48.4%). 60.7% had fewer than ten. Small teams usually share the phone: the person who answers is often also serving a customer or doing the job, which is when calls get missed.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 40 | 44.9% | 48.4% |
| 5–9 employees | 14 | 15.7% | 19.3% |
| 10–19 employees | 15 | 16.9% | 13.9% |
| 20–49 employees | 10 | 11.2% | 11.1% |
| 50 or more employees | 10 | 11.2% | 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 Baltimore, MD use the phone for
Security companies take calls about new installations, alarms and service problems. Existing customers expect quick help when a system misbehaves.
Typical inbound and outbound calls for security systems services in Baltimore, MD:
- The company calls a customer to schedule service.
- A builder calls about pre-wiring.
- A business calls about a faulty alarm panel.
When nobody can pick up
Alarm problems at night need clear after-hours routing.
Business-hours routing in Callata sends calls to voicemail, a teammate's cell or an AI agent once the day ends, and voicemails arrive transcribed with an urgency flag.
Phone system pricing for a 28-person security systems company
The average security systems company in Baltimore, MD has 27.5 employees, so a 28-person team is a reasonable benchmark. Per-seat business phone plans bill every one of those people. At month-to-month list prices checked September 28, 2026, 28 users on RingCentral RingEX Core cost $840.00 a month and 28 on Ooma Office Pro cost $698.60. On Callata the same 28 people cost $559.00 a month, less than either per-seat plan.
The annual difference against RingCentral's monthly list price comes to $3,372. Some vendors discount annual contracts; the table shows month-to-month prices.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $559.00 | $6,708.00 |
| Quo (Starter) | $19.00 per user | $532.00 | $6,384.00 |
| Nextiva (Core) | $23.00 per user | $644.00 | $7,728.00 |
| Ooma (Office Pro) | $24.95 per user | $698.60 | $8,383.20 |
| Dialpad (Standard) | $27.00 per user | $756.00 | $9,072.00 |
| RingCentral (RingEX Core) | $30.00 per user | $840.00 | $10,080.00 |
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.
Local area codes for security systems services in Baltimore, MD
NANPA records place the exchanges of the area's named cities and towns in 6 area codes. 443 has the most, with 302 of 732 exchanges (41%). Callata's plan includes up to 3 local numbers; you can pick them in the area codes your customers recognize, subject to carrier inventory, or port the number you already have for free.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 443 | 302 | Eastern | 1997 | 410, 667 |
| 410 | 267 | Eastern | 1991 | 443, 667 |
| 667 | 154 | Eastern | 2012 | 410, 443 |
| 240 | 5 | Eastern | 1997 | 227, 301 |
| 301 | 3 | Eastern | 1947 | 240, 227 |
| 227 | 1 | Eastern | 2023 | 240, 301 |
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
Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.
If you already have a number in Baltimore, MD, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.
Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.
Frequently asked questions
How many security systems services are there in Baltimore, MD?
Census County Business Patterns counted 91 security systems services in the Baltimore-Columbia-Towson, MD metro area in 2023. They employed 2,507 people in mid-March.
What does a business phone system cost for a 28-person security systems company?
At month-to-month list prices checked September 28, 2026, 28 users cost $840.00 a month on RingCentral RingEX Core and $698.60 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $559.00.
What area code should a security systems company in Baltimore, MD use?
Area code 443 has the most assigned exchanges among the area's named places, followed by 410 and 667. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for a security systems company?
Yes. Callata's optional AI agents can answer when the team is busy or closed, take a message, text, email or transfer the call. They disclose that they are AI and are billed from prepaid AI minutes at $0.25 per minute.