CallataGuidesBusiness phone system for engineering services firms in Dayton, OH
Engineering services firms in the Dayton-Kettering-Beavercreek, OH metro area: 162 establishments in 2023, the local area codes, and what phone service costs a 33-person team.
- Establishments
- 162CBP 2023
- Employees
- 5,269mid-March 2023
- Per 100k residents
- 19.7U.S. 18.6
- Rank
- 74th of 735areas by count
The engineering firm market in Dayton, OH
County Business Patterns counts 162 engineering services firms (NAICS 541330, Engineering Services) in the Dayton-Kettering-Beavercreek, OH metro area for 2023. They employed 5,269 people in mid-March and paid $573.4 million in annual payroll. By establishment count the area is 74th out of 735 areas with published figures for engineering services firms.
Measured against its 822,000 residents (2024 estimate), the area has 19.7 engineering services firms per 100,000 people; the U.S. rate is 18.6, so Dayton, OH is 6.0% above the national figure. The average establishment here has 32.5 employees, compared with 19.9 nationally. Payroll per employee comes to $108,820, in line with the national $109,949.
| Measure | Dayton, OH | Ohio | United States |
|---|---|---|---|
| Establishments | 162 | 1,641 | 63,233 |
| Mid-March employees | 5,269 | 34,642 | 1,260,577 |
| Annual payroll | $573,370,000 | $3,419,107,000 | $138,599,619,000 |
| Employees per establishment | 32.5 | 21.1 | 19.9 |
| Payroll per employee | $108,820 | $98,698 | $109,949 |
| Establishments per 100,000 residents | 19.7 | 13.8 | 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.
Establishment size: engineering services firms in Dayton, OH
Of the engineering services firms in Dayton, OH that had employees in March 2023, 37.0% had fewer than five (the U.S. share is 53.1%). 59.9% 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 | 60 | 37.0% | 53.1% |
| 5–9 employees | 37 | 22.8% | 15.0% |
| 10–19 employees | 25 | 15.4% | 13.1% |
| 20–49 employees | 17 | 10.5% | 11.3% |
| 50 or more employees | 23 | 14.2% | 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 Dayton, OH 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.
Calls an engineering firm in Dayton, OH might handle in a typical week include:
- A contractor calls with a field question.
- The firm calls a client about a schedule.
- A municipal reviewer calls about comments.
Business texting for engineering services firms
Firms text site meeting times and document notifications.
Because carriers require registration for business texting from local numbers, Callata files a 10DLC registration for a one-time $49; after approval, anyone on the team can reply from the business number.
What a phone system costs an engineering firm in Dayton, OH
The average engineering firm in Dayton, OH has 32.5 employees, so a 33-person team is a reasonable benchmark. On a per-user plan that headcount sets the bill: $823.35 a month on Ooma Office Pro or $990.00 on RingCentral RingEX Core at list price (checked September 28, 2026). Callata comes to $659.00 a month for 33 users ($99 a month with 5 users included, then $20 per additional user), below both.
Over a year, that is $3,972 less than RingCentral for an engineering firm in Dayton, OH of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $659.00 | $7,908.00 |
| Quo (Starter) | $19.00 per user | $627.00 | $7,524.00 |
| Nextiva (Core) | $23.00 per user | $759.00 | $9,108.00 |
| Ooma (Office Pro) | $24.95 per user | $823.35 | $9,880.20 |
| Dialpad (Standard) | $27.00 per user | $891.00 | $10,692.00 |
| RingCentral (RingEX Core) | $30.00 per user | $990.00 | $11,880.00 |
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 Dayton, OH
NANPA records place the exchanges of the area's named cities and towns in 8 area codes. 937 has the most, with 382 of 436 exchanges (88%). A local number lets clients in Dayton, OH call without dialing out of area. Callata includes up to 3 local numbers, and which numbers are open in an area code depends on carrier inventory when you choose.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 937 | 382 | Eastern | 1996 | 326 |
| 326 | 29 | Eastern | 2020 | 937 |
| 513 | 14 | Eastern | 1947 | 283 |
| 419 | 4 | Eastern | 1947 | 567 |
| 740 | 2 | Eastern | 1997 | 220 |
| 330 | 2 | Eastern | 1996 | 234 |
| 567 | 2 | Eastern | 2002 | 419 |
| 283 | 1 | Eastern | 2023 | 513 |
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 engineering services firms
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.
Porting a number you already use in Dayton, OH is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.
AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.
Frequently asked questions
How many engineering services firms are there in Dayton, OH?
Census County Business Patterns counted 162 engineering services firms in the Dayton-Kettering-Beavercreek, OH metro area in 2023. They employed 5,269 people in mid-March.
What does a business phone system cost for a 33-person engineering firm?
At month-to-month list prices checked September 28, 2026, 33 users cost $990.00 a month on RingCentral RingEX Core and $823.35 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $659.00.
What area code should an engineering firm in Dayton, OH use?
Area code 937 has the most assigned exchanges among the area's named places, followed by 326 and 513. 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.