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Business phone system for interior design services firms in Tennessee

241 interior design services firms operated in Tennessee in 2023. Where they are, how big their teams are, and what phone service costs them.

Establishments
241CBP 2023
Employees
841mid-March 2023
Per 100k residents
3.3U.S. 4.9
State rank
20th of 51by count

How many interior design services firms operate in Tennessee

The Census Bureau counted 241 interior design services firms in Tennessee in its 2023 County Business Patterns (NAICS 541410). They employed 841 people in mid-March and reported $47.6 million in annual payroll. That is the 20th highest count among the 51 states and DC with published figures. Interior design services firms make up 0.16% of the 150,129 business establishments in the state.

Per 100,000 residents (2024 estimate) Tennessee has 3.3 interior design services firms, 32.5% below the national rate of 4.9. The average establishment has 3.5 employees against 3.3 nationally. Payroll per employee is $56,591, 15.2% below the U.S. figure of $66,767.

Interior design services firms: Tennessee compared with the U.S., 2023
MeasureTennesseeUnited States
Establishments24116,797
Mid-March employees84155,286
Annual payroll$47,593,000$3,691,277,000
Employees per establishment3.53.3
Payroll per employee$56,591$66,767
Establishments per 100,000 residents3.34.9

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.

Interior design services firms by metro area in Tennessee

Census published interior design firm counts for 7 metro or micropolitan areas that include part of Tennessee. The largest is Nashville, TN, with 130 establishments. Single-state metro and micropolitan areas account for 70% of the statewide total; the rest are outside any published area or in areas Census suppressed.

Interior design services firms by metro or micropolitan area, Tennessee, 2023
AreaEstablishmentsEmployeesPer 100k residents
Nashville, TN1305306.0
Memphis, TN-MS-AR411093.1
Knoxville, TN32—3.3
Chattanooga, TN-GA21703.6
Kingsport, TN-VA5—1.6
Johnson City, TN4141.9
Cleveland, TN382.3

Source: Census County Business Patterns 2023; population from Census Vintage 2024 estimates.

Team sizes at interior design services firms in Tennessee

74.3% of Tennessee's interior design services firms with employees had fewer than five people in March 2023, compared with 81.7% nationally. 93.4% had fewer than ten. That is the size of team where a missed call usually means nobody was free, not that nobody was on staff.

Interior design services firms in Tennessee by employment size, 2023
Employment sizeEstablishmentsShareU.S. share
1–4 employees17974.3%81.7%
5–9 employees4619.1%12.1%
10–19 employees125.0%4.3%
20–49 employees41.7%1.6%
50 or more employees00.0%0.3%

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 interior design firm in Tennessee has to catch

Interior designers coordinate clients, contractors and vendors while spending much of the day on site. A business line that rings their cell and transcribes voicemail keeps project details from getting lost.

Calls an interior design firm in Tennessee might handle in a typical week include:

After-hours calls

After-hours calls are usually project updates that can wait until morning.

Callata voicemail is transcribed and triaged for urgency, and business-hours routing decides where calls go once you close.

Phone system pricing for a 3-person interior design firm

Interior design services firms in Tennessee average 3.5 employees, so the comparison uses a 3-person team. On a per-user plan that headcount sets the bill: $74.85 a month on Ooma Office Pro or $90.00 on RingCentral RingEX Core at list price (checked September 28, 2026). Callata is $99.00 a month with 5 users included, which is more than either per-seat plan for 3 people; it becomes the lower price at 4 users or more.

At this team size the per-seat plans cost less than Callata's $99 base price, which already covers 5 users; Callata becomes the lower price from 4 users.

Monthly list price for a 3-person interior design firm
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$99.00$1,188.00
Quo (Starter)$19.00 per user$57.00$684.00
Nextiva (Core)$23.00 per user$69.00$828.00
Ooma (Office Pro)$24.95 per user$74.85$898.20
Dialpad (Standard)$27.00 per user$81.00$972.00
RingCentral (RingEX Core)$30.00 per user$90.00$1,080.00

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 Tennessee

Tennessee has 8 geographic area codes in service according to NANPA. You can choose local numbers in the area codes your clients know, subject to carrier inventory, or port your current number for free.

Area codes in Tennessee by assigned exchanges
Area codeExchangesTime zoneIn service sinceOverlay with
615781Central1954629
423764Eastern and Central1995729
901616Central1947none
931538Eastern and Central1997none
865506Eastern1999none
731395Central2001none
629197Central2015615
7290Eastern and Central2025423

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 interior design services firms in Tennessee

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.

If you already have a number in Tennessee, 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 interior design services firms are in Tennessee?

241 in 2023, according to Census County Business Patterns. They employed 841 people in mid-March.

Which Tennessee metro area has the most interior design services firms?

Nashville, TN, with 130 establishments in 2023.

What does a phone system cost a 3-person interior design firm?

$90.00 a month on RingCentral RingEX Core or $74.85 on Ooma Office Pro at month-to-month list prices (checked September 28, 2026); $99.00 on Callata ($99 a month with 5 users included, then $20 per additional user).

Do I need to register to text customers from a Tennessee 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.