CallataGuidesBusiness phone system for marketing consulting firms in St. Louis, MO-IL
Marketing consulting firms in the St. Louis, MO-IL metro area: 342 establishments in 2023, the local area codes, and what phone service costs a 24-person team.
- Establishments
- 342CBP 2023
- Employees
- 8,288mid-March 2023
- Per 100k residents
- 12.2U.S. 15.4
- Rank
- 35th of 525areas by count
The marketing consultancy market in St. Louis, MO-IL
County Business Patterns counts 342 marketing consulting firms (NAICS 541613, Marketing Consulting Services) in the St. Louis, MO-IL metro area for 2023. They employed 8,288 people in mid-March and paid $340.2 million in annual payroll. By establishment count the area is 35th out of 525 areas with published figures for marketing consulting firms.
Measured against its 2.8 million residents (2024 estimate), the area has 12.2 marketing consulting firms per 100,000 people; the U.S. rate is 15.4, so St. Louis, MO-IL is 20.8% below the national figure. The average establishment here has 24.2 employees, compared with 6.0 nationally. Payroll per employee comes to $41,046, 50.6% below the national $83,009.
| Measure | St. Louis, MO-IL | Missouri | United States |
|---|---|---|---|
| Establishments | 342 | 618 | 52,258 |
| Mid-March employees | 8,288 (moderate noise) | 10,107 (moderate noise) | 315,229 |
| Annual payroll | $340,189,000 (moderate noise) | $469,200,000 | $26,166,723,000 |
| Employees per establishment | 24.2 | 16.4 | 6.0 |
| Payroll per employee | $41,046 | $46,423 | $83,009 |
| Establishments per 100,000 residents | 12.2 | 9.9 | 15.4 |
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: marketing consulting firms in St. Louis, MO-IL
Of the marketing consulting firms in St. Louis, MO-IL that had employees in March 2023, 72.4% had fewer than five (the U.S. share is 83.6%). 82.8% 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.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 244 | 72.4% | 83.6% |
| 5–9 employees | 35 | 10.4% | 7.2% |
| 10–19 employees | 34 | 10.1% | 4.3% |
| 20–49 employees | 20 | 5.9% | 3.1% |
| 50 or more employees | 4 | 1.2% | 1.8% |
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 marketing consulting firms in St. Louis, MO-IL use the phone for
Marketing consultants answer to many clients at once, and prospective clients call after seeing campaigns or referrals. A shared line with routing to account owners keeps calls from bouncing.
Calls a marketing consultancy in St. Louis, MO-IL might handle in a typical week include:
- A media vendor calls about a placement.
- A client calls about a report.
- A prospect calls to ask about a campaign for a product launch.
Business texting for marketing consulting firms
Consultants text approvals and quick check-ins with clients.
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.
Callata vs. per-seat pricing for marketing consulting firms in St. Louis, MO-IL
The average marketing consultancy in St. Louis, MO-IL has 24.2 employees, so a 24-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, 24 users on RingCentral RingEX Core cost $720.00 a month and 24 on Ooma Office Pro cost $598.80. Callata comes to $479.00 a month for 24 users ($99 a month with 5 users included, then $20 per additional user), below both.
Over a year, that is $2,892 less than RingCentral for a marketing consultancy in St. Louis, MO-IL 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 | $479.00 | $5,748.00 |
| Quo (Starter) | $19.00 per user | $456.00 | $5,472.00 |
| Nextiva (Core) | $23.00 per user | $552.00 | $6,624.00 |
| Ooma (Office Pro) | $24.95 per user | $598.80 | $7,185.60 |
| Dialpad (Standard) | $27.00 per user | $648.00 | $7,776.00 |
| RingCentral (RingEX Core) | $30.00 per user | $720.00 | $8,640.00 |
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.
Local area codes for marketing consulting firms in St. Louis, MO-IL
NANPA records place the exchanges of the area's named cities and towns in 8 area codes. 314 has the most, with 723 of 1,483 exchanges (49%). A local number lets clients in St. Louis, MO-IL 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 |
|---|---|---|---|---|
| 314 | 723 | Central | 1947 | 557 |
| 618 | 324 | Central | 1947 | 730 |
| 636 | 308 | Central | 1999 | none |
| 557 | 71 | Central | 2022 | 314 |
| 730 | 30 | Central | 2023 | 618 |
| 217 | 14 | Central | 1947 | 447 |
| 573 | 11 | Central | 1996 | 235 |
| 447 | 2 | Central | 2021 | 217 |
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 a marketing consultancy in St. Louis, MO-IL
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 St. Louis, MO-IL 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 marketing consulting firms are there in St. Louis, MO-IL?
Census County Business Patterns counted 342 marketing consulting firms in the St. Louis, MO-IL metro area in 2023. They employed 8,288 people in mid-March.
What does a business phone system cost for a 24-person marketing consultancy?
At month-to-month list prices checked September 28, 2026, 24 users cost $720.00 a month on RingCentral RingEX Core and $598.80 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $479.00.
What area code should a marketing consultancy in St. Louis, MO-IL use?
Area code 314 has the most assigned exchanges among the area's named places, followed by 618 and 636. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for a marketing consultancy?
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.