CallataGuidesBusiness phone system for site preparation contractors in San Francisco, CA
Site preparation contractors in the San Francisco-Oakland-Fremont, CA metro area: 263 establishments in 2023, the local area codes, and what phone service costs a 24-person team.
- Establishments
- 263CBP 2023
- Employees
- 6,188mid-March 2023
- Per 100k residents
- 5.7U.S. 12.3
- Rank
- 25th of 881areas by count
The site preparation contractor market in San Francisco, CA
County Business Patterns counts 263 site preparation contractors (NAICS 238910, Site Preparation Contractors) in the San Francisco-Oakland-Fremont, CA metro area for 2023. Together they reported 6,188 mid-March employees and $674.3 million of payroll for the year. That ranks 25th of the 881 metro and micropolitan areas where Census published a count for this industry.
With 4.6 million residents in the Census 2024 estimate, that is 5.7 site preparation contractors per 100,000 people, 53.9% below the national rate of 12.3. Establishments average 23.5 employees, 107.9% above the U.S. average of 11.3. Payroll per employee comes to $108,974, 41.3% above the national $77,142.
| Measure | San Francisco, CA | California | United States |
|---|---|---|---|
| Establishments | 263 | 2,711 | 41,777 |
| Mid-March employees | 6,188 | 36,627 | 472,783 |
| Annual payroll | $674,331,000 | $3,431,053,000 | $36,471,538,000 |
| Employees per establishment | 23.5 | 13.5 | 11.3 |
| Payroll per employee | $108,974 | $93,676 | $77,142 |
| Establishments per 100,000 residents | 5.7 | 6.9 | 12.3 |
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 San Francisco, CA
Of the site preparation contractors in San Francisco, CA that had employees in March 2023, 42.2% had fewer than five (the U.S. share is 60.7%). 62.0% 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 | 111 | 42.2% | 60.7% |
| 5–9 employees | 52 | 19.8% | 16.3% |
| 10–19 employees | 40 | 15.2% | 10.7% |
| 20–49 employees | 30 | 11.4% | 8.0% |
| 50 or more employees | 30 | 11.4% | 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.
Calls a site preparation contractor in San Francisco, CA has to catch
Excavation and site work contractors coordinate equipment, crews and permits across job sites. Builders and homeowners need to reach them quickly when schedules shift. That holds for site preparation contractors in San Francisco, CA as much as anywhere.
Calls a site preparation contractor in San Francisco, CA might handle in a typical week include:
- The contractor calls a customer about access.
- A homeowner calls about grading a yard.
- A utility locator calls about marks.
After-hours calls
After-hours calls are usually scheduling questions.
With business-hours routing, calls after closing can go to transcribed voicemail or an optional AI receptionist instead of ringing an empty room.
Callata vs. per-seat pricing for site preparation contractors in San Francisco, CA
The average site preparation contractor in San Francisco, CA has 23.5 employees, so a 24-person team is a reasonable benchmark. On a per-user plan that headcount sets the bill: $598.80 a month on Ooma Office Pro or $720.00 on RingCentral RingEX Core at list price (checked September 28, 2026). On Callata the same 24 people cost $479.00 a month, less than either per-seat plan.
The annual difference against RingCentral's monthly list price comes to $2,892. 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 | $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.
Which area code to use in San Francisco, CA
NANPA records place the exchanges of the area's named cities and towns in 6 area codes. 415 has the most, with 628 of 1,734 exchanges (36%). Callata's plan includes up to 3 local numbers; you can pick them in the area codes your customers recognize, subject to carrier inventory, or port the number you already have for free.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 415 | 628 | Pacific | 1947 | 628 |
| 925 | 514 | Pacific | 1998 | none |
| 650 | 268 | Pacific | 1997 | none |
| 510 | 170 | Pacific | 1991 | 341 |
| 628 | 131 | Pacific | 2015 | 415 |
| 341 | 23 | Pacific | 2019 | 510 |
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 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 San Francisco, CA, 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 site preparation contractors are there in San Francisco, CA?
Census County Business Patterns counted 263 site preparation contractors in the San Francisco-Oakland-Fremont, CA metro area in 2023. They employed 6,188 people in mid-March.
What does a business phone system cost for a 24-person site preparation contractor?
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 site preparation contractor in San Francisco, CA use?
Area code 415 has the most assigned exchanges among the area's named places, followed by 925 and 650. 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.