CallataGuidesBusiness phone system for architectural services firms in South Dakota
39 architectural services firms operated in South Dakota in 2023. Where they are, how big their teams are, and what phone service costs them.
- Establishments
- 39CBP 2023
- Employees
- 282mid-March 2023
- Per 100k residents
- 4.2U.S. 6.7
- State rank
- 48th of 51by count
How many architectural services firms operate in South Dakota
County Business Patterns counts 39 establishments in South Dakota classified as Architectural Services (NAICS 541310) for 2023. They employed 282 people in mid-March and reported $22.4 million in annual payroll. That is the 48th highest count among the 51 states and DC with published figures. Architectural services firms make up 0.13% of the 29,106 business establishments in the state.
Per 100,000 residents (2024 estimate) South Dakota has 4.2 architectural services firms, 37.1% below the national rate of 6.7. The average establishment has 7.2 employees against 8.3 nationally. Payroll per employee is $79,436, 19.5% below the U.S. figure of $98,717.
| Measure | South Dakota | United States |
|---|---|---|
| Establishments | 39 | 22,805 |
| Mid-March employees | 282 | 189,468 |
| Annual payroll | $22,401,000 | $18,703,680,000 |
| Employees per establishment | 7.2 | 8.3 |
| Payroll per employee | $79,436 | $98,717 |
| Establishments per 100,000 residents | 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.
Where architectural services firms in South Dakota are concentrated
Census published architecture firm counts for 3 metro or micropolitan areas that include part of South Dakota. The largest is Sioux Falls, SD-MN, with 19 establishments (a multi-state area; its count covers every state it spans). Single-state metro and micropolitan areas account for 28% of the statewide total; the rest are outside any published area or in areas Census suppressed.
| Area | Establishments | Employees | Per 100k residents |
|---|---|---|---|
| Sioux Falls, SD-MN | 19 | 192 | 6.2 |
| Rapid City, SD | 11 | 51 | 7.0 |
| Sioux City, IA-NE-SD | 6 | 58 | 4.1 |
Source: Census County Business Patterns 2023; population from Census Vintage 2024 estimates.
Team sizes at architectural services firms in South Dakota
46.2% of South Dakota's architectural services firms with employees had fewer than five people in March 2023, compared with 63.6% nationally. 76.9% had fewer than ten. At that size the phone is shared, so routing (who rings, when, and what happens after hours) matters more than the number of desk phones.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 18 | 46.2% | 63.6% |
| 5–9 employees | 12 | 30.8% | 17.6% |
| 10–19 employees | 6 | 15.4% | 10.2% |
| 20–49 employees | 3 | 7.7% | 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 South Dakota 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. That holds for architectural services firms in South Dakota as much as anywhere.
A few of the calls that come in to architectural services firms in South Dakota:
- A contractor calls with a question about drawings.
- A homeowner calls about designing an addition.
- A permitting office calls about a submission.
Business texting for architectural services firms
Firms text meeting confirmations and site-visit times.
Texting from a local number in South Dakota requires carrier registration (10DLC), a one-time $49 fee on Callata.
What a phone system costs an architecture firm in South Dakota
Architectural services firms in South Dakota average 7.2 employees, so the comparison uses a 7-person team. Per-seat business phone plans bill every one of those people. At month-to-month list prices checked September 28, 2026, 7 users on RingCentral RingEX Core cost $210.00 a month and 7 on Ooma Office Pro cost $174.65. Callata comes to $139.00 a month for 7 users ($99 a month with 5 users included, then $20 per additional user), below both.
Over a year, that is $852 less than RingCentral for an architecture firm in South Dakota 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 | $139.00 | $1,668.00 |
| Quo (Starter) | $19.00 per user | $133.00 | $1,596.00 |
| Nextiva (Core) | $23.00 per user | $161.00 | $1,932.00 |
| Ooma (Office Pro) | $24.95 per user | $174.65 | $2,095.80 |
| Dialpad (Standard) | $27.00 per user | $189.00 | $2,268.00 |
| RingCentral (RingEX Core) | $30.00 per user | $210.00 | $2,520.00 |
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 South Dakota
South Dakota has 1 geographic area code in service according to NANPA. Callata includes up to 3 local numbers, so an architecture firm can hold a number in more than one of them.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 605 | 745 | Central and Mountain | 1947 | none |
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 architectural services firms in South Dakota
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.
Porting a number you already use in South Dakota 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 architectural services firms are in South Dakota?
39 in 2023, according to Census County Business Patterns. They employed 282 people in mid-March.
Which South Dakota metro area has the most architectural services firms?
Sioux Falls, SD-MN, with 19 establishments in 2023.
What does a phone system cost a 7-person architecture firm?
$210.00 a month on RingCentral RingEX Core or $174.65 on Ooma Office Pro at month-to-month list prices (checked September 28, 2026); $139.00 on Callata ($99 a month with 5 users included, then $20 per additional user).
Do I need to register to text customers from a South Dakota 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.