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Business phone system for engineering services firms in Dallas, TX

Engineering services firms in the Dallas-Fort Worth-Arlington, TX metro area: 1,394 establishments in 2023, the local area codes, and what phone service costs an 18-person team.

Establishments
1,394CBP 2023
Employees
24,931mid-March 2023
Per 100k residents
16.7U.S. 18.6
Rank
8th of 735areas by count

How many engineering services firms are in Dallas, TX?

The Census Bureau's 2023 County Business Patterns lists 1,394 establishments classified as Engineering Services (NAICS 541330) in the Dallas-Fort Worth-Arlington, TX metro area. Together they reported 24,931 mid-March employees and $2.8 billion of payroll for the year. That ranks 8th of the 735 metro and micropolitan areas where Census published a count for this industry.

With 8.3 million residents in the Census 2024 estimate, that is 16.7 engineering services firms per 100,000 people, 10.1% below the national rate of 18.6. Establishments average 17.9 employees, 10.3% below the U.S. average of 19.9. Payroll per employee comes to $111,823, in line with the national $109,949.

Engineering services firms: Dallas, TX compared with Texas and the U.S., 2023
MeasureDallas, TXTexasUnited States
Establishments1,3945,77263,233
Mid-March employees24,931125,7561,260,577
Annual payroll$2,787,858,000$15,369,376,000$138,599,619,000
Employees per establishment17.921.819.9
Payroll per employee$111,823$122,216$109,949
Establishments per 100,000 residents16.718.418.6

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.

Establishment size: engineering services firms in Dallas, TX

Of the engineering services firms in Dallas, TX that had employees in March 2023, 50.9% had fewer than five (the U.S. share is 53.1%). 66.4% had fewer than ten. When a business has only a few people, whoever is free answers the phone, and calls that arrive while everyone is busy go to voicemail unless they are routed somewhere else.

Engineering services firms in Dallas, TX by employment size, 2023
Employment sizeEstablishmentsShareU.S. share
1–4 employees70950.9%53.1%
5–9 employees21615.5%15.0%
10–19 employees16912.1%13.1%
20–49 employees18313.1%11.3%
50 or more employees1178.4%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.

Why the phone matters for engineering services firms in Dallas, TX

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.

A few of the calls that come in to engineering services firms in Dallas, TX:

Calls after closing time

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.

Callata vs. per-seat pricing for engineering services firms in Dallas, TX

The average engineering firm in Dallas, TX has 17.9 employees, so an 18-person team is a reasonable benchmark. On a per-user plan that headcount sets the bill: $449.10 a month on Ooma Office Pro or $540.00 on RingCentral RingEX Core at list price (checked September 28, 2026). On Callata the same 18 people cost $359.00 a month, less than either per-seat plan.

The annual difference against RingCentral's monthly list price comes to $2,172. Some vendors discount annual contracts; the table shows month-to-month prices.

Monthly list price for an 18-person engineering firm
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$359.00$4,308.00
Quo (Starter)$19.00 per user$342.00$4,104.00
Nextiva (Core)$23.00 per user$414.00$4,968.00
Ooma (Office Pro)$24.95 per user$449.10$5,389.20
Dialpad (Standard)$27.00 per user$486.00$5,832.00
RingCentral (RingEX Core)$30.00 per user$540.00$6,480.00

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 Dallas, TX

NANPA records place the exchanges of the area's named cities and towns in 8 area codes. 469 has the most, with 775 of 3,872 exchanges (20%). 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 Dallas, TX area by assigned exchanges
Area codeExchangesTime zoneIn service sinceOverlay with
469775Central1999214, 945, 972
214774Central1947469, 945, 972
972771Central1996214, 469, 945
817677Central1953682
682359Central2000817
945292Central2021214, 469, 972
940173Central1997none
90351Central1990430

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 Dallas, TX

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.

If you already have a number in Dallas, TX, 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 Dallas, TX?

Census County Business Patterns counted 1,394 engineering services firms in the Dallas-Fort Worth-Arlington, TX metro area in 2023. They employed 24,931 people in mid-March.

What does a business phone system cost for an 18-person engineering firm?

At month-to-month list prices checked September 28, 2026, 18 users cost $540.00 a month on RingCentral RingEX Core and $449.10 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $359.00.

What area code should an engineering firm in Dallas, TX use?

Area code 469 has the most assigned exchanges among the area's named places, followed by 214 and 972. 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.