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Business phone system for interior design services firms in Pennsylvania

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

Establishments
365CBP 2023
Employees
1,271mid-March 2023
Per 100k residents
2.8U.S. 4.9
State rank
13th of 51by count

How many interior design services firms operate in Pennsylvania

The Census Bureau counted 365 interior design services firms in Pennsylvania in its 2023 County Business Patterns (NAICS 541410). They employed 1,271 people in mid-March and reported $79.7 million in annual payroll. That is the 13th highest count among the 51 states and DC with published figures. Interior design services firms make up 0.12% of the 307,065 business establishments in the state.

Per 100,000 residents (2024 estimate) Pennsylvania has 2.8 interior design services firms, 43.5% below the national rate of 4.9. The average establishment has 3.5 employees against 3.3 nationally. Payroll per employee is $62,738, 6.0% below the U.S. figure of $66,767.

Interior design services firms: Pennsylvania compared with the U.S., 2023
MeasurePennsylvaniaUnited States
Establishments36516,797
Mid-March employees1,27155,286
Annual payroll$79,740,000$3,691,277,000
Employees per establishment3.53.3
Payroll per employee$62,738$66,767
Establishments per 100,000 residents2.84.9

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 Pennsylvania

Census published interior design firm counts for 11 metro or micropolitan areas that include part of Pennsylvania. The largest is Philadelphia, PA-NJ-DE-MD, with 263 establishments (a multi-state area; its count covers every state it spans). Single-state metro and micropolitan areas account for 38% 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, Pennsylvania, 2023
AreaEstablishmentsEmployeesPer 100k residents
Philadelphia, PA-NJ-DE-MD2639784.2
Pittsburgh, PA782053.2
Lancaster, PA20983.6
Allentown, PA-NJ15751.7
Reading, PA10402.3
Scranton, PA8—1.4
Harrisburg, PA6131.0
York, PA691.3
State College, PA563.1
Erie, PA481.5
Altoona, PA322.5

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

Team sizes at interior design services firms in Pennsylvania

80.4% of Pennsylvania's interior design services firms with employees had fewer than five people in March 2023, compared with 81.7% nationally. 95.6% 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 Pennsylvania by employment size, 2023
Employment sizeEstablishmentsShareU.S. share
1–4 employees29280.4%81.7%
5–9 employees5515.2%12.1%
10–19 employees113.0%4.3%
20–49 employees51.4%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 Pennsylvania 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 Pennsylvania might handle in a typical week include:

When nobody can pick up

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.

Callata vs. per-seat pricing for interior design services firms in Pennsylvania

Interior design services firms in Pennsylvania 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 Pennsylvania

Pennsylvania has 15 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 Pennsylvania by assigned exchanges
Area codeExchangesTime zoneIn service sinceOverlay with
267786Eastern1999215, 445
484786Eastern1999610, 835
717784Eastern1947223
814784Eastern1947582
215783Eastern1947267, 445
724783Eastern1998878
570782Eastern1998272
610782Eastern1994484, 835
412762Eastern1947878
272336Eastern2013570
223252Eastern2017717
878190Eastern2001412, 724
445183Eastern2018215, 267
582154Eastern2021814
835109Eastern2022484, 610

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 Pennsylvania

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 Pennsylvania, 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 Pennsylvania?

365 in 2023, according to Census County Business Patterns. They employed 1,271 people in mid-March.

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

Philadelphia, PA-NJ-DE-MD, with 263 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 Pennsylvania 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.