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Business phone system for site preparation contractors in St. Louis, MO-IL

Site preparation contractors in the St. Louis, MO-IL metro area: 311 establishments in 2023, the local area codes, and what phone service costs a 12-person team.

Establishments
311CBP 2023
Employees
3,757mid-March 2023
Per 100k residents
11.1U.S. 12.3
Rank
20th of 881areas by count

Site preparation contractors in St. Louis, MO-IL by the numbers

There were 311 site preparation contractors in the St. Louis, MO-IL metro area in 2023, according to Census County Business Patterns (NAICS 238910, Site Preparation Contractors). They employed 3,757 people in mid-March and paid $286.1 million in annual payroll. By establishment count the area is 20th out of 881 areas with published figures for site preparation contractors.

Measured against its 2.8 million residents (2024 estimate), the area has 11.1 site preparation contractors per 100,000 people; the U.S. rate is 12.3, so St. Louis, MO-IL is 10.0% below the national figure. The average establishment here has 12.1 employees, compared with 11.3 nationally. Payroll per employee comes to $76,159, in line with the national $77,142.

Site preparation contractors: St. Louis, MO-IL compared with Missouri and the U.S., 2023
MeasureSt. Louis, MO-ILMissouriUnited States
Establishments31190241,777
Mid-March employees3,7577,224472,783
Annual payroll$286,128,000$509,768,000$36,471,538,000
Employees per establishment12.18.011.3
Payroll per employee$76,159$70,566$77,142
Establishments per 100,000 residents11.114.412.3

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: site preparation contractors in St. Louis, MO-IL

Of the site preparation contractors in St. Louis, MO-IL that had employees in March 2023, 55.8% had fewer than five (the U.S. share is 60.7%). 75.8% 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.

Site preparation contractors in St. Louis, MO-IL by employment size, 2023
Employment sizeEstablishmentsShareU.S. share
1–4 employees17355.8%60.7%
5–9 employees6220.0%16.3%
10–19 employees3110.0%10.7%
20–49 employees3110.0%8.0%
50 or more employees134.2%4.4%

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 site preparation contractors in St. Louis, MO-IL use the phone for

Excavation and site work contractors coordinate equipment, crews and permits across job sites. Builders and homeowners need to reach them quickly when schedules shift.

Calls a site preparation contractor in St. Louis, MO-IL might handle in a typical week include:

Texting customers

Contractors text arrival windows and site photos.

Team texting on Callata runs from your business number, so replies come from the practice or shop rather than someone's personal phone. It turns on after the one-time $49 carrier registration (10DLC) is approved.

Callata vs. per-seat pricing for site preparation contractors in St. Louis, MO-IL

The average site preparation contractor in St. Louis, MO-IL has 12.1 employees, so a 12-person team is a reasonable benchmark. Priced per seat, 12 users would run $360.00 a month on RingCentral RingEX Core and $299.40 on Ooma Office Pro (month-to-month list prices, checked September 28, 2026). Callata comes to $239.00 a month for 12 users ($99 a month with 5 users included, then $20 per additional user), below both.

Over a year, that is $1,452 less than RingCentral for a site preparation contractor in St. Louis, MO-IL of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.

Monthly list price for a 12-person site preparation contractor
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$239.00$2,868.00
Quo (Starter)$19.00 per user$228.00$2,736.00
Nextiva (Core)$23.00 per user$276.00$3,312.00
Ooma (Office Pro)$24.95 per user$299.40$3,592.80
Dialpad (Standard)$27.00 per user$324.00$3,888.00
RingCentral (RingEX Core)$30.00 per user$360.00$4,320.00

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 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 customers 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 codes in the St. Louis, MO-IL area by assigned exchanges
Area codeExchangesTime zoneIn service sinceOverlay with
314723Central1947557
618324Central1947730
636308Central1999none
55771Central2022314
73030Central2023618
21714Central1947447
57311Central1996235
4472Central2021217

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 site preparation contractors

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 site preparation contractors are there in St. Louis, MO-IL?

Census County Business Patterns counted 311 site preparation contractors in the St. Louis, MO-IL metro area in 2023. They employed 3,757 people in mid-March.

What does a business phone system cost for a 12-person site preparation contractor?

At month-to-month list prices checked September 28, 2026, 12 users cost $360.00 a month on RingCentral RingEX Core and $299.40 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $239.00.

What area code should a site preparation contractor 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 site preparation contractor?

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.