Business phone system for advertising agencies in Ohio
429 advertising agencies operated in Ohio in 2023. Where they are, how big their teams are, and what phone service costs them.
- Establishments
- 429CBP 2023
- Employees
- 4,354mid-March 2023
- Per 100k residents
- 3.6U.S. 4.6
- State rank
- 7th of 51by count
Advertising agencies in Ohio by the numbers
County Business Patterns counts 429 establishments in Ohio classified as Advertising Agencies (NAICS 541810) for 2023. They employed 4,354 people in mid-March and reported $358.4 million in annual payroll. That is the 7th highest count among the 51 states and DC with published figures. Advertising agencies make up 0.17% of the 255,049 business establishments in the state.
Per 100,000 residents (2024 estimate) Ohio has 3.6 advertising agencies, 20.8% below the national rate of 4.6. The average establishment has 10.1 employees against 12.9 nationally. Payroll per employee is $82,317, 23.0% below the U.S. figure of $106,841.
| Measure | Ohio | United States |
|---|---|---|
| Establishments | 429 | 15,512 |
| Mid-March employees | 4,354 | 200,465 |
| Annual payroll | $358,408,000 | $21,417,972,000 |
| Employees per establishment | 10.1 | 12.9 |
| Payroll per employee | $82,317 | $106,841 |
| Establishments per 100,000 residents | 3.6 | 4.6 |
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.
Where advertising agencies in Ohio are concentrated
Census published advertising agency counts for 15 metro or micropolitan areas that include part of Ohio. The largest is Columbus, OH, with 110 establishments. Single-state metro and micropolitan areas account for 79% of the statewide total; the rest are outside any published area or in areas Census suppressed.
| Area | Establishments | Employees | Per 100k residents |
|---|---|---|---|
| Columbus, OH | 110 | 1,124 | 4.9 |
| Cleveland, OH | 104 | 1,070 | 4.8 |
| Cincinnati, OH-KY-IN | 91 | 1,496 | 4.0 |
| Akron, OH | 40 | 199 | 5.7 |
| Dayton, OH | 22 | 111 | 2.7 |
| Toledo, OH | 22 | 255 | 3.7 |
| Youngstown, OH | 12 | 88 | 2.8 |
| Canton, OH | 11 | 74 | 2.7 |
| Wooster, OH | 5 | — | 4.3 |
| Huntington, WV-KY-OH | 4 | 13 | 1.1 |
| Wheeling, WV-OH | 4 | 27 | 3.0 |
| Sandusky, OH | 4 | — | 3.5 |
| Lima, OH | 4 | 32 | 4.0 |
| Findlay, OH | 4 | — | 5.3 |
| Mansfield, OH | 3 | 21 | 2.4 |
Source: Census County Business Patterns 2023; population from Census Vintage 2024 estimates.
Team sizes at advertising agencies in Ohio
63.8% of Ohio's advertising agencies with employees had fewer than five people in March 2023, compared with 68.2% nationally. 80.1% had fewer than ten. That is the size of team where a missed call usually means nobody was free, not that nobody was on staff.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 273 | 63.8% | 68.2% |
| 5–9 employees | 70 | 16.4% | 12.0% |
| 10–19 employees | 42 | 9.8% | 8.4% |
| 20–49 employees | 26 | 6.1% | 6.4% |
| 50 or more employees | 17 | 4.0% | 5.0% |
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 advertising agencies in Ohio
Agencies manage many client relationships at once, and clients expect to reach their account team quickly. Recording and summarizing calls helps teams keep track of approvals and requests. That holds for advertising agencies in Ohio as much as anywhere.
A few of the calls that come in to advertising agencies in Ohio:
- A production vendor calls about a shoot.
- A prospect calls about agency services.
- A client calls to change a campaign budget.
Calls after closing time
Launch-day issues can be urgent; otherwise after-hours calls can wait.
Callata voicemail is transcribed and triaged for urgency, and business-hours routing decides where calls go once you close.
Callata vs. per-seat pricing for advertising agencies in Ohio
Advertising agencies in Ohio average 10.1 employees, so the comparison uses a 10-person team. Priced per seat, 10 users would run $300.00 a month on RingCentral RingEX Core and $249.50 on Ooma Office Pro (month-to-month list prices, checked September 28, 2026). On Callata the same 10 people cost $199.00 a month, less than either per-seat plan.
The annual difference against RingCentral's monthly list price comes to $1,212. 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 | $199.00 | $2,388.00 |
| Quo (Starter) | $19.00 per user | $190.00 | $2,280.00 |
| Nextiva (Core) | $23.00 per user | $230.00 | $2,760.00 |
| Ooma (Office Pro) | $24.95 per user | $249.50 | $2,994.00 |
| Dialpad (Standard) | $27.00 per user | $270.00 | $3,240.00 |
| RingCentral (RingEX Core) | $30.00 per user | $300.00 | $3,600.00 |
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.
Area codes in Ohio
Ohio has 15 geographic area codes in service according to NANPA. You can choose local numbers in the area codes your clients know, subject to carrier inventory, or port your current number for free.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 330 | 787 | Eastern | 1996 | 234 |
| 740 | 786 | Eastern | 1997 | 220 |
| 513 | 784 | Eastern | 1947 | 283 |
| 419 | 783 | Eastern | 1947 | 567 |
| 937 | 780 | Eastern | 1996 | 326 |
| 614 | 777 | Eastern | 1947 | 380 |
| 440 | 757 | Eastern | 1997 | 436 |
| 216 | 612 | Eastern | 1947 | none |
| 567 | 421 | Eastern | 2002 | 419 |
| 234 | 398 | Eastern | 2000 | 330 |
| 220 | 142 | Eastern | 2015 | 740 |
| 380 | 138 | Eastern | 2016 | 614 |
| 326 | 88 | Eastern | 2020 | 937 |
| 283 | 48 | Eastern | 2023 | 513 |
| 436 | 0 | Eastern | 2024 | 440 |
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 advertising agencies in Ohio
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 Ohio, 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 advertising agencies are in Ohio?
429 in 2023, according to Census County Business Patterns. They employed 4,354 people in mid-March.
Which Ohio metro area has the most advertising agencies?
Columbus, OH, with 110 establishments in 2023.
What does a phone system cost a 10-person advertising agency?
$300.00 a month on RingCentral RingEX Core or $249.50 on Ooma Office Pro at month-to-month list prices (checked September 28, 2026); $199.00 on Callata ($99 a month with 5 users included, then $20 per additional user).
Do I need to register to text customers from a Ohio number?
Yes. US carriers require business texting from local numbers to be registered (10DLC). On Callata the registration is a one-time $49 fee, and texting turns on once it is approved.