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Business phone system for engineering services firms in Charlotte, NC-SC

Engineering services firms in the Charlotte-Concord-Gastonia, NC-SC metro area: 578 establishments in 2023, the local area codes, and what phone service costs a 16-person team.

Establishments
578CBP 2023
Employees
9,093mid-March 2023
Per 100k residents
20.0U.S. 18.6
Rank
24th of 735areas by count

Engineering services firms in Charlotte, NC-SC by the numbers

There were 578 engineering services firms in the Charlotte-Concord-Gastonia, NC-SC metro area in 2023, according to Census County Business Patterns (NAICS 541330, Engineering Services). Together they reported 9,093 mid-March employees and $911.4 million of payroll for the year. That ranks 24th of the 735 metro and micropolitan areas where Census published a count for this industry.

With 2.9 million residents in the Census 2024 estimate, that is 20.0 engineering services firms per 100,000 people, 7.8% above the national rate of 18.6. Establishments average 15.7 employees, 21.1% below the U.S. average of 19.9. Payroll per employee comes to $100,235, 8.8% below the national $109,949.

Engineering services firms: Charlotte, NC-SC compared with North Carolina and the U.S., 2023
MeasureCharlotte, NC-SCNorth CarolinaUnited States
Establishments5781,77963,233
Mid-March employees9,09331,5401,260,577
Annual payroll$911,441,000$3,147,971,000$138,599,619,000
Employees per establishment15.717.719.9
Payroll per employee$100,235$99,809$109,949
Establishments per 100,000 residents20.016.118.6

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.

Team sizes at engineering services firms in Charlotte, NC-SC

Of the engineering services firms in Charlotte, NC-SC that had employees in March 2023, 52.9% had fewer than five (the U.S. share is 53.1%). 66.7% 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.

Engineering services firms in Charlotte, NC-SC by employment size, 2023
Employment sizeEstablishmentsShareU.S. share
1–4 employees30552.9%53.1%
5–9 employees8013.9%15.0%
10–19 employees6912.0%13.1%
20–49 employees8013.9%11.3%
50 or more employees437.5%7.6%

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 engineering services firms in Charlotte, NC-SC use the phone for

Engineering firms handle client calls, contractor questions and agency coordination, often while staff are in the field. Routing calls to the right project engineer saves time on every project.

Typical inbound and outbound calls for engineering services firms in Charlotte, NC-SC:

When nobody can pick up

Field issues sometimes need an after-hours callback; routine calls can wait until morning.

With business-hours routing, calls after closing can go to transcribed voicemail or an optional AI receptionist instead of ringing an empty room.

Phone system pricing for a 16-person engineering firm

The average engineering firm in Charlotte, NC-SC has 15.7 employees, so a 16-person team is a reasonable benchmark. On a per-user plan that headcount sets the bill: $399.20 a month on Ooma Office Pro or $480.00 on RingCentral RingEX Core at list price (checked September 28, 2026). On Callata the same 16 people cost $319.00 a month, less than either per-seat plan.

The annual difference against RingCentral's monthly list price comes to $1,932. Some vendors discount annual contracts; the table shows month-to-month prices.

Monthly list price for a 16-person engineering firm
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$319.00$3,828.00
Quo (Starter)$19.00 per user$304.00$3,648.00
Nextiva (Core)$23.00 per user$368.00$4,416.00
Ooma (Office Pro)$24.95 per user$399.20$4,790.40
Dialpad (Standard)$27.00 per user$432.00$5,184.00
RingCentral (RingEX Core)$30.00 per user$480.00$5,760.00

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.

Getting a local number in Charlotte, NC-SC

NANPA records place the exchanges of the area's named cities and towns in 5 area codes. 704 has the most, with 690 of 1,239 exchanges (56%). Callata's plan includes up to 3 local numbers; you can pick them in the area codes your clients recognize, subject to carrier inventory, or port the number you already have for free.

Area codes in the Charlotte, NC-SC area by assigned exchanges
Area codeExchangesTime zoneIn service sinceOverlay with
704690Eastern1947980
980394Eastern2001704
803114Eastern1947839
83935Eastern2020803
8286Eastern1998none

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.

Setting up Callata for an engineering firm in Charlotte, NC-SC

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 Charlotte, NC-SC, 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 engineering services firms are there in Charlotte, NC-SC?

Census County Business Patterns counted 578 engineering services firms in the Charlotte-Concord-Gastonia, NC-SC metro area in 2023. They employed 9,093 people in mid-March.

What does a business phone system cost for a 16-person engineering firm?

At month-to-month list prices checked September 28, 2026, 16 users cost $480.00 a month on RingCentral RingEX Core and $399.20 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $319.00.

What area code should an engineering firm in Charlotte, NC-SC use?

Area code 704 has the most assigned exchanges among the area's named places, followed by 980 and 803. If you already have a local number, you can port it to Callata for free.

Can an AI receptionist answer calls for an engineering firm?

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.