CallataGuidesBusiness phone system for architectural services firms in Chicago, IL-IN
Architectural services firms in the Chicago-Naperville-Elgin, IL-IN metro area: 842 establishments in 2023, the local area codes, and what phone service costs a 9-person team.
- Establishments
- 842CBP 2023
- Employees
- 7,833mid-March 2023
- Per 100k residents
- 8.9U.S. 6.7
- Rank
- 3rd of 431areas by count
How many architectural services firms are in Chicago, IL-IN?
County Business Patterns counts 842 architectural services firms (NAICS 541310, Architectural Services) in the Chicago-Naperville-Elgin, IL-IN metro area for 2023. They employed 7,833 people in mid-March and paid $790.0 million in annual payroll. By establishment count the area is 3rd out of 431 areas with published figures for architectural services firms.
Measured against its 9.4 million residents (2024 estimate), the area has 8.9 architectural services firms per 100,000 people; the U.S. rate is 6.7, so Chicago, IL-IN is 33.5% above the national figure. The average establishment here has 9.3 employees, compared with 8.3 nationally. Payroll per employee comes to $100,853, 2.2% above the national $98,717.
| Measure | Chicago, IL-IN | Illinois | United States |
|---|---|---|---|
| Establishments | 842 | 944 | 22,805 |
| Mid-March employees | 7,833 | 8,573 | 189,468 |
| Annual payroll | $789,978,000 | $854,844,000 | $18,703,680,000 |
| Employees per establishment | 9.3 | 9.1 | 8.3 |
| Payroll per employee | $100,853 | $99,714 | $98,717 |
| Establishments per 100,000 residents | 8.9 | 7.4 | 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.
How big architectural services firms in Chicago, IL-IN are
Of the architectural services firms in Chicago, IL-IN that had employees in March 2023, 65.5% had fewer than five (the U.S. share is 63.6%). 79.4% 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 | 550 | 65.5% | 63.6% |
| 5–9 employees | 117 | 13.9% | 17.6% |
| 10–19 employees | 88 | 10.5% | 10.2% |
| 20–49 employees | 59 | 7.0% | 5.9% |
| 50 or more employees | 26 | 3.1% | 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.
What architectural services firms in Chicago, IL-IN use the phone for
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 Chicago, IL-IN might handle in a typical week include:
- An engineer calls about structural details.
- A homeowner calls about designing an addition.
- A permitting office calls about a submission.
What architectural services firms text about
Firms text meeting confirmations and site-visit times.
Texts sent from a local business number in Chicago, IL-IN have to be registered with carriers first (10DLC); on Callata that is a one-time $49 fee, after which the whole team can text from the shared number.
What a phone system costs an architecture firm in Chicago, IL-IN
The average architecture firm in Chicago, IL-IN has 9.3 employees, so a 9-person team is a reasonable benchmark. On a per-user plan that headcount sets the bill: $224.55 a month on Ooma Office Pro or $270.00 on RingCentral RingEX Core at list price (checked September 28, 2026). Callata comes to $179.00 a month for 9 users ($99 a month with 5 users included, then $20 per additional user), below both.
Over a year, that is $1,092 less than RingCentral for an architecture firm in Chicago, IL-IN 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 | $179.00 | $2,148.00 |
| Quo (Starter) | $19.00 per user | $171.00 | $2,052.00 |
| Nextiva (Core) | $23.00 per user | $207.00 | $2,484.00 |
| Ooma (Office Pro) | $24.95 per user | $224.55 | $2,694.60 |
| Dialpad (Standard) | $27.00 per user | $243.00 | $2,916.00 |
| RingCentral (RingEX Core) | $30.00 per user | $270.00 | $3,240.00 |
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 architectural services firms in Chicago, IL-IN
NANPA records place the exchanges of the area's named cities and towns in 8 area codes. 630 has the most, with 778 of 3,886 exchanges (20%). A local number lets clients in Chicago, IL-IN 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 |
|---|---|---|---|---|
| 630 | 778 | Central | 1996 | 331 |
| 847 | 766 | Central | 1996 | 224 |
| 708 | 748 | Central | 1989 | 464 |
| 224 | 581 | Central | 2002 | 847 |
| 219 | 369 | Eastern and Central | 1948 | none |
| 815 | 292 | Central | 1947 | 779 |
| 331 | 224 | Central | 2007 | 630 |
| 779 | 128 | Central | 2007 | 815 |
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 Chicago, IL-IN get with Callata
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 Chicago, IL-IN 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 there in Chicago, IL-IN?
Census County Business Patterns counted 842 architectural services firms in the Chicago-Naperville-Elgin, IL-IN metro area in 2023. They employed 7,833 people in mid-March.
What does a business phone system cost for a 9-person architecture firm?
At month-to-month list prices checked September 28, 2026, 9 users cost $270.00 a month on RingCentral RingEX Core and $224.55 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $179.00.
What area code should an architecture firm in Chicago, IL-IN use?
Area code 630 has the most assigned exchanges among the area's named places, followed by 847 and 708. 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.