CallataGuidesBusiness phone system for architectural services firms in Sioux Falls, SD-MN
Architectural services firms in the Sioux Falls, SD-MN metro area: 19 establishments in 2023, the local area codes, and what phone service costs a 10-person team.
- Establishments
- 19CBP 2023
- Employees
- 192mid-March 2023
- Per 100k residents
- 6.2U.S. 6.7
- Rank
- 152nd of 431areas by count
How many architectural services firms are in Sioux Falls, SD-MN?
There were 19 architectural services firms in the Sioux Falls, SD-MN metro area in 2023, according to Census County Business Patterns (NAICS 541310, Architectural Services). Together they reported 192 mid-March employees and $15.9 million of payroll for the year. That ranks 152nd of the 431 metro and micropolitan areas where Census published a count for this industry.
With 308,000 residents in the Census 2024 estimate, that is 6.2 architectural services firms per 100,000 people, 8.1% below the national rate of 6.7. Establishments average 10.1 employees, 21.6% above the U.S. average of 8.3. Payroll per employee comes to $83,010, 15.9% below the national $98,717.
| Measure | Sioux Falls, SD-MN | South Dakota | United States |
|---|---|---|---|
| Establishments | 19 | 39 | 22,805 |
| Mid-March employees | 192 | 282 | 189,468 |
| Annual payroll | $15,938,000 | $22,401,000 | $18,703,680,000 |
| Employees per establishment | 10.1 | 7.2 | 8.3 |
| Payroll per employee | $83,010 | $79,436 | $98,717 |
| Establishments per 100,000 residents | 6.2 | 4.2 | 6.7 |
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.
Team sizes at architectural services firms in Sioux Falls, SD-MN
Of the architectural services firms in Sioux Falls, SD-MN that had employees in March 2023, 42.1% had fewer than five (the U.S. share is 63.6%). 57.9% 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 | 8 | 42.1% | 63.6% |
| 5–9 employees | 3 | 15.8% | 17.6% |
| 10–19 employees | 5 | 26.3% | 10.2% |
| 20–49 employees | 3 | 15.8% | 5.9% |
| 50 or more employees | 0 | 0.0% | 2.7% |
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 an architecture firm in Sioux Falls, SD-MN has to catch
Architects coordinate clients, consultants, contractors and permitting offices across long projects. Calls need to reach the project lead, and summaries of decisions help keep teams aligned.
Calls an architecture firm in Sioux Falls, SD-MN might handle in a typical week include:
- A contractor calls with a question about drawings.
- A permitting office calls about a submission.
- The firm calls a client to review a design.
After-hours calls
After-hours calls are usually not urgent.
Callata transcribes voicemail and triages it for urgency, so the first callback in the morning can go to the caller who needs it most.
Phone system pricing for a 10-person architecture firm
The average architecture firm in Sioux Falls, SD-MN has 10.1 employees, so a 10-person team is a reasonable benchmark. On a per-user plan that headcount sets the bill: $249.50 a month on Ooma Office Pro or $300.00 on RingCentral RingEX Core at list price (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.
Getting a local number in Sioux Falls, SD-MN
NANPA records place the exchanges of the area's named cities and towns in 2 area codes. 605 has the most, with 134 of 146 exchanges (92%). Callata's plan includes up to 3 local numbers; you can pick them in the area codes your clients recognize, subject to carrier inventory, or port the number you already have for free.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 605 | 134 | Central and Mountain | 1947 | none |
| 507 | 12 | Central | 1954 | 924 |
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.
What architectural services firms in Sioux Falls, SD-MN get with Callata
For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.
If you already have a number in Sioux Falls, SD-MN, 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 architectural services firms are there in Sioux Falls, SD-MN?
Census County Business Patterns counted 19 architectural services firms in the Sioux Falls, SD-MN metro area in 2023. They employed 192 people in mid-March.
What does a business phone system cost for a 10-person architecture firm?
At month-to-month list prices checked September 28, 2026, 10 users cost $300.00 a month on RingCentral RingEX Core and $249.50 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $199.00.
What area code should an architecture firm in Sioux Falls, SD-MN use?
Area code 605 has the most assigned exchanges among the area's named places, followed by 507. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for an architecture 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.