CallataGuidesBusiness phone system for engineering services firms in Allentown, PA-NJ
Engineering services firms in the Allentown-Bethlehem-Easton, PA-NJ metro area: 142 establishments in 2023, the local area codes, and what phone service costs a 15-person team.
- Establishments
- 142CBP 2023
- Employees
- 2,123mid-March 2023
- Per 100k residents
- 16.0U.S. 18.6
- Rank
- 81st of 735areas by count
Engineering services firms in Allentown, PA-NJ by the numbers
County Business Patterns counts 142 engineering services firms (NAICS 541330, Engineering Services) in the Allentown-Bethlehem-Easton, PA-NJ metro area for 2023. Together they reported 2,123 mid-March employees and $209.3 million of payroll for the year. That ranks 81st of the 735 metro and micropolitan areas where Census published a count for this industry.
With 886,000 residents in the Census 2024 estimate, that is 16.0 engineering services firms per 100,000 people, 13.8% below the national rate of 18.6. Establishments average 15.0 employees, 25.0% below the U.S. average of 19.9. Payroll per employee comes to $98,570, 10.3% below the national $109,949.
| Measure | Allentown, PA-NJ | Pennsylvania | United States |
|---|---|---|---|
| Establishments | 142 | 2,243 | 63,233 |
| Mid-March employees | 2,123 | 48,394 | 1,260,577 |
| Annual payroll | $209,264,000 | $5,081,206,000 | $138,599,619,000 |
| Employees per establishment | 15.0 | 21.6 | 19.9 |
| Payroll per employee | $98,570 | $104,997 | $109,949 |
| Establishments per 100,000 residents | 16.0 | 17.1 | 18.6 |
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 Allentown, PA-NJ
Of the engineering services firms in Allentown, PA-NJ that had employees in March 2023, 47.1% had fewer than five (the U.S. share is 53.1%). 60.7% 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.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 66 | 47.1% | 53.1% |
| 5–9 employees | 19 | 13.6% | 15.0% |
| 10–19 employees | 25 | 17.9% | 13.1% |
| 20–49 employees | 24 | 17.1% | 11.3% |
| 50 or more employees | 6 | 4.3% | 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 Allentown, PA-NJ
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. That holds for engineering services firms in Allentown, PA-NJ as much as anywhere.
A few of the calls that come in to engineering services firms in Allentown, PA-NJ:
- A contractor calls with a field question.
- A homeowner calls about a structural inspection.
- The firm calls a client about a schedule.
When nobody can pick up
Field issues sometimes need an after-hours callback; routine calls can wait until morning.
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 15-person engineering firm
The average engineering firm in Allentown, PA-NJ has 15.0 employees, so a 15-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, 15 users on RingCentral RingEX Core cost $450.00 a month and 15 on Ooma Office Pro cost $374.25. On Callata the same 15 people cost $299.00 a month, less than either per-seat plan.
The annual difference against RingCentral's monthly list price comes to $1,812. 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 | $299.00 | $3,588.00 |
| Quo (Starter) | $19.00 per user | $285.00 | $3,420.00 |
| Nextiva (Core) | $23.00 per user | $345.00 | $4,140.00 |
| Ooma (Office Pro) | $24.95 per user | $374.25 | $4,491.00 |
| Dialpad (Standard) | $27.00 per user | $405.00 | $4,860.00 |
| RingCentral (RingEX Core) | $30.00 per user | $450.00 | $5,400.00 |
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 Allentown, PA-NJ
NANPA records place the exchanges of the area's named cities and towns in 7 area codes. 484 has the most, with 176 of 464 exchanges (38%). 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 code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 484 | 176 | Eastern | 1999 | 610, 835 |
| 610 | 165 | Eastern | 1994 | 484, 835 |
| 908 | 50 | Eastern | 1990 | none |
| 835 | 46 | Eastern | 2022 | 484, 610 |
| 570 | 16 | Eastern | 1998 | 272 |
| 272 | 10 | Eastern | 2013 | 570 |
| 814 | 1 | Eastern | 1947 | 582 |
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 Allentown, PA-NJ
For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.
If you already have a number in Allentown, PA-NJ, 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 Allentown, PA-NJ?
Census County Business Patterns counted 142 engineering services firms in the Allentown-Bethlehem-Easton, PA-NJ metro area in 2023. They employed 2,123 people in mid-March.
What does a business phone system cost for a 15-person engineering firm?
At month-to-month list prices checked September 28, 2026, 15 users cost $450.00 a month on RingCentral RingEX Core and $374.25 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $299.00.
What area code should an engineering firm in Allentown, PA-NJ use?
Area code 484 has the most assigned exchanges among the area's named places, followed by 610 and 908. 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.