The finding
Mold licensee density differs by more than a factor of two between the three states that publish a bulk register. Texas lists 10,073 mould licensees across eight categories, Florida 6,875 across four, and New York 11,650 across two separate registers. Normalised against 2025 population that is 32.2 licensees per 100,000 residents in Texas, 27.8 in Florida and 58.6 in New York. The counts below are computed from the register files, and the structure of each register turns out to matter as much as its size.
Headline figures
In this report
- Licensees per 100,000 residents
- Three registers, three structures
- Florida: assessors and remediators, near parity
- Florida city concentration
- New York: nearly a third of the contractor register is lapsed
- Texas: eight categories, worker-heavy
- Method
- Reproduce this
- What this does not show
- Questions this report answers
- Sources
Key findings
- Texas carries the highest density of the three at 32.2 mould licensees per 100,000 residents, against 27.8 in Florida and 58.6 in New York.
- Florida’s assessor and remediator counts are close to parity: 3,310 assessors to 3,192 remediators, a ratio of 1.04 to 1.
- 754 of 2,507 New York mould contractor licences are recorded as expired, which is 30.1% of the register.
- The lapse rate is even higher on the New York individual register: 3,416 of 9,143 individual licences are expired, 37.4%.
- Texas is worker-heavy. 6,665 of 10,073 Texas licences, 66%, are the entry-level remediation worker credential.
- Florida’s register is geographically concentrated: the top ten cities hold 1873 of 6,875 records.
- The three states do not count the same thing. Texas issues company licences alongside individual ones, Florida issues to individuals and separately registers courses and providers, and New York keeps contractors and individuals in two different datasets.
- Only 1,753 New York mould contractor licences are active, which is a materially smaller market than the 2,507 headline row count suggests.
Licensees per 100,000 residents
| State | Licences counted | 2025 population | Per 100,000 residents | Register structure |
|---|---|---|---|---|
| Texas | 10,073 | 31,290,831 | 32.2 | 8 licence categories, individuals and companies |
| Florida | 6,502 | 23,372,215 | 27.8 | 2 practitioner codes (assessor, remediator) |
| New York | 11,650 | 19,867,248 | 58.6 | 2 registers (contractors, individuals) |
New York comes out ahead on this measure and Florida last, but the gap is narrower than the raw counts imply, and the comparison is less clean than it looks. Each register was built by a different agency under a different statute, and each counts a different unit. The next section sets out what each one actually contains before any of these numbers are read as a market size. Our remediation establishment census counts firms rather than licences, across the environmental remediation sector.
Three registers, three structures
This is the part a cross-state count usually skips. Texas issues both a company licence and an individual licence, so a single firm can appear once as a company and several more times through its staff. Florida issues to individuals only, and its file also carries continuing education course and provider records that are not practitioners at all. New York splits contractors from individuals into two datasets, so a total has to be assembled rather than read. Which states license mould work at all is checked against each statute in our guide to state mold licensing.
Florida: assessors and remediators, near parity
| Occupation code | What it covers | Records | Share |
|---|---|---|---|
| MRSA | Mold Assessor | 3,310 | 48.1% |
| MRSR | Mold Remediator | 3,192 | 46.4% |
| CRS1 | Continuing education course | 331 | 4.8% |
| PVDR | Continuing education provider | 42 | 0.6% |
The ratio is the finding. Florida holds 3,310 mould assessor licences against 3,192 remediator licences, 1.04 to 1. That is close enough to parity to be worth stating, because Florida built the two licences as separate credentials on purpose.
Chapter 468 Part XVI of the Florida Statutes, enacted by s. 3 ch. 2007-235, separates assessment from remediation so that the party who diagnoses the problem is not the party who sells the removal. A register that came out heavily weighted towards remediators would suggest the assessment side had not developed as an independent trade. It has. Our classification of how other states handle the same question is in the state mold licensing map, where Florida is one of only five states issuing its own occupational licence.
Florida city concentration
| City | Mould records | Share of file |
|---|---|---|
| Miami | 565 | 8.22% |
| Tampa | 239 | 3.48% |
| Orlando | 205 | 2.98% |
| Jacksonville | 153 | 2.23% |
| Boca Raton | 141 | 2.05% |
| Pompano Beach | 124 | 1.80% |
| Cape Coral | 124 | 1.80% |
| Naples | 113 | 1.64% |
| Fort Lauderdale | 109 | 1.59% |
| Coral Springs | 100 | 1.45% |
| Davie | 99 | 1.44% |
| Hollywood | 90 | 1.31% |
| Fort Myers | 89 | 1.29% |
| Mount Laurel Townshi | 70 | 1.02% |
| Kissimmee | 69 | 1.00% |
The top city holds 565 records, 8.2% of the file, and the top ten together hold 1873. The South Florida and Gulf Coast clustering is visible, which is what a humidity-driven and hurricane-driven workload would predict, but the address field is an address of record and nothing in the file states a service area.
New York: nearly a third of the contractor register is lapsed
| Register | Rows | Active | Expired | Expired share |
|---|---|---|---|---|
| Mould contractors | 2,507 | 1,753 | 754 | 30.1% |
| Mould individuals | 9,143 | 5,727 | 3,416 | 37.4% |
| Combined | 11,650 | 7,480 | 4,170 | 35.8% |
30.1% of the New York mould contractor register is expired. That matters for anyone reading a published licence count as a market size: the headline 2,507 contractor rows reduce to 1,753 active ones. The individual register is worse again at 37.4% expired, which is consistent with a worker-level credential that people hold while they are in the trade and let lapse when they leave it.
| Licence type | Register | Rows |
|---|---|---|
| Mold Remediation Contractor License (SH126) | Contractors | 1,315 |
| Mold Assessment Contractor License (SH125) | Contractors | 1,192 |
| Mold Abatement Worker License (SH127) | Individuals | 3,699 |
| Mold Supervisor License (SH127) | Individuals | 3,024 |
| Mold Assessor License (SH128) | Individuals | 2,420 |
Texas: eight categories, worker-heavy
| Licence category | Licensees | Share |
|---|---|---|
| Mold Remediation Worker | 6,665 | 66.2% |
| Mold Assessment Consultant | 1,105 | 11.0% |
| Mold Remediation Contractor | 1,010 | 10.0% |
| Mold Remediation Company | 591 | 5.9% |
| Mold Assessment Technician | 364 | 3.6% |
| Mold Assessment Company | 255 | 2.5% |
| Mold Analysis Laboratory | 71 | 0.7% |
| Mold Training Provider | 12 | 0.1% |
Texas runs the most granular scheme of the three, with eight separate credentials covering workers, technicians, consultants, contractors, companies, analysis laboratories and training providers. The distribution is steeply weighted to the bottom of that ladder: 66% of all Texas mould licences are the remediation worker credential. The programme is administered under Texas Occupations Code Chapter 1958 and 16 Texas Administrative Code Chapter 78, and moved to TDLR from the Department of State Health Services on 1 November 2017.
Method
How we counted. Florida and New York figures are computed directly from the retrieved register files in this project, not transcribed. For Florida we read all 6,875 rows of the DBPR lic07mold.csv export and counted the occupation code column and the city column. For New York we read both Department of Labor Socrata datasets, 2,507 contractor rows and 9,143 individual rows, and counted the license_status and license_type fields. Texas counts were verified against the TDLR per-category CSV endpoints on 23 September 2026; the roster file is not redistributed here because the host rate-limited the retrieval, so Texas contributes category totals only and no per-licensee detail. Density is the licence count divided by the state’s 2025 resident population from US Census Bureau Vintage 2025 estimates, scaled to 100,000. Florida’s density uses the two practitioner codes only, excluding continuing education course and provider records. All ratios and shares in this report are derived from those counts.
Reproduce this
Reproduce this
- Endpoint
Florida DBPR lic07mold.csv; NY Socrata ikqx-ispy and h6jr-vxqt; TDLR vsMold{Category}.csv- Query
Florida: count column 2 (occupation code) and column 9 (city). New York: count license_status by dataset. Texas: row count per category file- Rows retrieved
- Florida 6,875; New York 11,650; Texas 10,073
- Retrieved
- 23 September 2026
The Florida file is refreshed weekly, so counts will drift. The New York datasets expose a Socrata API, so $select=license_status&$group=license_status returns the status split without downloading the file. The TDLR endpoints are rate-limited and will refuse rapid repeat requests: space them out and expect to retry. Population denominators come from the Census Bureau Vintage 2025 state resident population estimates.
What this does not show
What this does not show
- Three states only. These are the three jurisdictions that publish a usable bulk mould register. Two other licensing states, Louisiana and Tennessee, offer search interfaces without a documented bulk export, so they are absent here.
- A register counts licences, not firms. One company can hold a company licence and employ several individually licensed people, and each of those is a separate row.
- A licence is not evidence of activity. Nothing in any of these files records whether the holder performed any mould work in the last year, or any work at all.
- Expired entries remain in the file. New York publishes status explicitly, which is how the lapse rates above were computed. The Florida and Texas counts are row counts of the published files and are not filtered to active status in the same way.
- Addresses are addresses of record. The Florida city concentration reflects where licensees are registered, not where work is performed or where demand sits.
- Density is not demand. Dividing by population normalises for state size and nothing else. Climate, housing stock age, storm exposure and insurance practice all differ between these three states.
- This is not legal advice. A row in a register is not a judgement about any licensee’s standing. Check the state register directly before relying on a credential.
Most quotable figures
- Texas lists 10,073 mould licensees, 32.2 per 100,000 residents, against 27.8 in Florida and 58.6 in New York (state registers, 23 September 2026).
- 30.1% of New York’s mould contractor register is expired: 754 of 2,507 licences.
- Florida holds 3,310 mould assessor licences against 3,192 remediator licences, 1.04 to 1, under a statute that separates the two roles by design.
- 66% of Texas mould licences are the entry-level remediation worker credential.
Questions this report answers
Which state has the most mould licensees?
Texas, at 10,073 licences across eight categories, against 6,875 records in Florida and 11,650 in New York, as at 23 September 2026.
Which state has the highest density?
New York, at 58.6 licensees per 100,000 residents. The three-state range runs from 27.8 to 58.6.
Why count only three states?
These are the only three mould licensing states that publish a bulk register. Louisiana and Tennessee license mould work but offer search interfaces without a documented bulk export, and the remaining states have no programme to count.
How many New York mould licences are actually current?
1,753 of 2,507 contractor licences and 5,727 of 9,143 individual licences carry an active status. The rest are recorded as expired.
Does Florida license assessors and remediators separately?
Yes, and the two are close to equal in number: 3,310 assessors to 3,192 remediators. Chapter 468 Part XVI of the Florida Statutes separates the roles so that the party diagnosing the problem is not the party selling the removal.
Can I download the Texas roster from this report?
No. The Texas figures here are category counts verified against the TDLR per-category files on 23 September 2026. The roster file is not redistributed here and no per-licensee detail is reproduced, because the retrieval was rate-limited by the host.
Can I reuse these tables?
Yes. The derived tables and figures are released under CC BY 4.0 with attribution to Remediation Insider. The underlying registers are public records published by the three state agencies.
How to cite
Remediation Insider. Mold Licensee Density: Texas, Florida and New York Compared. https://remediationinsider.com/mold-licensee-density-report/ (retrieved 2 October 2026).
Data and tables in this report are released under CC BY 4.0. Attribution: Remediation Insider.
Sources
- Florida Department of Business and Professional Regulation, licensee file lic07mold.csv, refreshed weekly. 6,875 rows across 22 columns retrieved 23 September 2026.
- New York State Department of Labor mould licensing datasets, Socrata identifiers ikqx-ispy (contractors, 2,507 rows) and h6jr-vxqt (individuals, 9,143 rows), retrieved 23 September 2026 via NY Open Data.
- Texas Department of Licensing and Regulation, per-category mould licence files at tdlr.texas.gov/dbproduction2/vsMold{Category}.csv. Category counts totalling 10,073 verified 23 September 2026. The roster file is not redistributed in this report.
- US Census Bureau, Vintage 2025 state resident population estimates, used as the denominator for every per-capita figure.
- Florida Statutes Chapter 468 Part XVI, enacted by s. 3 ch. 2007-235, and Florida Administrative Code Chapter 61-31.
- Texas Occupations Code Chapter 1958 and 16 Texas Administrative Code Chapter 78. The programme transferred from the Department of State Health Services to TDLR on 1 November 2017.
- New York Labor Law article 32, sections 930 to 938, and 12 NYCRR 325.
- No survey, interview or site visit was conducted for this report. Every Florida and New York figure is computed from the retrieved register files; Texas figures are category counts verified against the agency files on the stated date.