CallataGuidesBusiness phone system for security systems services in Denver, CO
Security systems services in the Denver-Aurora-Centennial, CO metro area: 79 establishments in 2023, the local area codes, and what phone service costs a 26-person team.
- Establishments
- 79CBP 2023
- Employees
- 2,089mid-March 2023
- Per 100k residents
- 2.6U.S. 2.1
- Rank
- 18th of 298areas by count
The security systems company market in Denver, CO
The Census Bureau's 2023 County Business Patterns lists 79 establishments classified as Security Systems Services (except Locksmiths) (NAICS 561621) in the Denver-Aurora-Centennial, CO metro area. Together they reported 2,089 mid-March employees and $174.8 million of payroll for the year. That ranks 18th of the 298 metro and micropolitan areas where Census published a count for this industry.
With 3.1 million residents in the Census 2024 estimate, that is 2.6 security systems services per 100,000 people, 23.1% above the national rate of 2.1. Establishments average 26.4 employees, 47.2% above the U.S. average of 18.0. Payroll per employee comes to $83,676, 19.4% above the national $70,074.
| Measure | Denver, CO | Colorado | United States |
|---|---|---|---|
| Establishments | 79 | 135 | 7,151 |
| Mid-March employees | 2,089 (moderate noise) | 2,586 (moderate noise) | 128,462 |
| Annual payroll | $174,800,000 (moderate noise) | $201,607,000 (moderate noise) | $9,001,839,000 |
| Employees per establishment | 26.4 | 19.2 | 18.0 |
| Payroll per employee | $83,676 | $77,961 | $70,074 |
| Establishments per 100,000 residents | 2.6 | 2.3 | 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.
How big security systems services in Denver, CO are
Of the security systems services in Denver, CO that had employees in March 2023, 58.7% had fewer than five (the U.S. share is 48.4%). 77.3% had fewer than ten. For a business of a few people, phone coverage is a staffing question as much as a technology one: someone has to be free to pick up, or the call needs somewhere sensible to go.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 44 | 58.7% | 48.4% |
| 5–9 employees | 14 | 18.7% | 19.3% |
| 10–19 employees | 9 | 12.0% | 13.9% |
| 20–49 employees | 5 | 6.7% | 11.1% |
| 50 or more employees | 3 | 4.0% | 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.
Why the phone matters for security systems services in Denver, CO
Security companies take calls about new installations, alarms and service problems. Existing customers expect quick help when a system misbehaves. That holds for security systems services in Denver, CO as much as anywhere.
A few of the calls that come in to security systems services in Denver, CO:
- 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.
Callata transcribes voicemail and triages it for urgency, so the first callback in the morning can go to the caller who needs it most.
What a phone system costs a security systems company in Denver, CO
The average security systems company in Denver, CO has 26.4 employees, so a 26-person team is a reasonable benchmark. On a per-user plan that headcount sets the bill: $648.70 a month on Ooma Office Pro or $780.00 on RingCentral RingEX Core at list price (checked September 28, 2026). On Callata the same 26 people cost $519.00 a month, less than either per-seat plan.
The annual difference against RingCentral's monthly list price comes to $3,132. 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 | $519.00 | $6,228.00 |
| Quo (Starter) | $19.00 per user | $494.00 | $5,928.00 |
| Nextiva (Core) | $23.00 per user | $598.00 | $7,176.00 |
| Ooma (Office Pro) | $24.95 per user | $648.70 | $7,784.40 |
| Dialpad (Standard) | $27.00 per user | $702.00 | $8,424.00 |
| RingCentral (RingEX Core) | $30.00 per user | $780.00 | $9,360.00 |
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.
Which area code to use in Denver, CO
NANPA records place the exchanges of the area's named cities and towns in 4 area codes. 303 has the most, with 740 of 1,472 exchanges (50%). 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 |
|---|---|---|---|---|
| 303 | 740 | Mountain | 1947 | 720, 983 |
| 720 | 693 | Mountain | 1998 | 303, 983 |
| 983 | 32 | Mountain | 2022 | 303, 720 |
| 719 | 7 | Mountain | 1988 | none |
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.
What security systems services in Denver, CO get with Callata
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 Denver, CO, 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 Denver, CO?
Census County Business Patterns counted 79 security systems services in the Denver-Aurora-Centennial, CO metro area in 2023. They employed 2,089 people in mid-March.
What does a business phone system cost for a 26-person security systems company?
At month-to-month list prices checked September 28, 2026, 26 users cost $780.00 a month on RingCentral RingEX Core and $648.70 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $519.00.
What area code should a security systems company in Denver, CO use?
Area code 303 has the most assigned exchanges among the area's named places, followed by 720 and 983. 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.