Business phone system for testing laboratories in Louisiana
203 testing laboratories operated in Louisiana in 2023. Where they are, how big their teams are, and what phone service costs them.
- Establishments
- 203CBP 2023
- Employees
- 5,638mid-March 2023
- Per 100k residents
- 4.4U.S. 2.2
- State rank
- 10th of 51by count
Testing laboratories in Louisiana by the numbers
The Census Bureau counted 203 testing laboratories in Louisiana in its 2023 County Business Patterns (NAICS 541380). They employed 5,638 people in mid-March and reported $450.8 million in annual payroll. That is the 10th highest count among the 51 states and DC with published figures. Testing laboratories make up 0.19% of the 108,561 business establishments in the state.
Per 100,000 residents (2024 estimate) Louisiana has 4.4 testing laboratories, 101.2% above the national rate of 2.2. The average establishment has 27.8 employees against 21.2 nationally. Payroll per employee is $79,949, 6.2% above the U.S. figure of $75,284.
| Measure | Louisiana | United States |
|---|---|---|
| Establishments | 203 | 7,463 |
| Mid-March employees | 5,638 | 158,265 |
| Annual payroll | $450,753,000 | $11,914,875,000 |
| Employees per establishment | 27.8 | 21.2 |
| Payroll per employee | $79,949 | $75,284 |
| Establishments per 100,000 residents | 4.4 | 2.2 |
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 testing laboratories in Louisiana are concentrated
Census published testing laboratory counts for 11 metro or micropolitan areas that include part of Louisiana. The largest is New Orleans, LA, with 52 establishments. Single-state metro and micropolitan areas account for 95% of the statewide total; the rest are outside any published area or in areas Census suppressed.
| Area | Establishments | Employees | Per 100k residents |
|---|---|---|---|
| New Orleans, LA | 52 | 1,407 | 5.4 |
| Baton Rouge, LA | 40 | 1,763 | 4.5 |
| Lafayette, LA | 31 | 564 | 7.4 |
| Lake Charles, LA | 16 | 734 | 6.6 |
| Houma, LA | 15 | 616 | 7.5 |
| Shreveport, LA | 13 | 148 | 3.4 |
| Morgan City, LA | 7 | 54 | 15.0 |
| New Iberia, LA | 6 | 55 | 8.9 |
| Monroe, LA | 5 | — | 2.3 |
| Slidell, LA | 4 | 40 | 1.4 |
| Hammond, LA | 3 | — | 2.1 |
Source: Census County Business Patterns 2023; population from Census Vintage 2024 estimates.
Team sizes at testing laboratories in Louisiana
33.7% of Louisiana's testing laboratories with employees had fewer than five people in March 2023, compared with 42.7% nationally. 54.5% 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.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 68 | 33.7% | 42.7% |
| 5–9 employees | 42 | 20.8% | 18.9% |
| 10–19 employees | 31 | 15.3% | 17.1% |
| 20–49 employees | 33 | 16.3% | 12.8% |
| 50 or more employees | 28 | 13.9% | 8.6% |
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 a testing laboratory in Louisiana has to catch
Testing labs serve contractors, manufacturers and property owners who need results on a schedule. Calls about sample drop-off, turnaround and results need quick routing. That holds for testing laboratories in Louisiana as much as anywhere.
Calls a testing laboratory in Louisiana might handle in a typical week include:
- A contractor calls to schedule material testing.
- A client calls about results.
- A homeowner calls about water testing.
Calls after closing time
After-hours calls are mostly routine.
Callata voicemail is transcribed and triaged for urgency, and business-hours routing decides where calls go once you close.
What a phone system costs a testing laboratory in Louisiana
Testing laboratories in Louisiana average 27.8 employees, so the comparison uses a 28-person team. Per-seat business phone plans bill every one of those people. At month-to-month list prices checked September 28, 2026, 28 users on RingCentral RingEX Core cost $840.00 a month and 28 on Ooma Office Pro cost $698.60. On Callata the same 28 people cost $559.00 a month, less than either per-seat plan.
The annual difference against RingCentral's monthly list price comes to $3,372. 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 | $559.00 | $6,708.00 |
| Quo (Starter) | $19.00 per user | $532.00 | $6,384.00 |
| Nextiva (Core) | $23.00 per user | $644.00 | $7,728.00 |
| Ooma (Office Pro) | $24.95 per user | $698.60 | $8,383.20 |
| Dialpad (Standard) | $27.00 per user | $756.00 | $9,072.00 |
| RingCentral (RingEX Core) | $30.00 per user | $840.00 | $10,080.00 |
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 Louisiana
Louisiana has 6 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 code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 318 | 764 | Central | 1957 | 457 |
| 337 | 599 | Central | 1999 | none |
| 504 | 563 | Central | 1947 | none |
| 225 | 501 | Central | 1998 | none |
| 985 | 447 | Central | 2001 | none |
| 457 | 0 | Central | 2025 | 318 |
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 testing laboratories in Louisiana
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.
If you already have a number in Louisiana, 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 testing laboratories are in Louisiana?
203 in 2023, according to Census County Business Patterns. They employed 5,638 people in mid-March.
Which Louisiana metro area has the most testing laboratories?
New Orleans, LA, with 52 establishments in 2023.
What does a phone system cost a 28-person testing laboratory?
$840.00 a month on RingCentral RingEX Core or $698.60 on Ooma Office Pro at month-to-month list prices (checked September 28, 2026); $559.00 on Callata ($99 a month with 5 users included, then $20 per additional user).
Do I need to register to text customers from a Louisiana 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.