Employment
N/A
Total employees (Census CBP)
Wholesale Trade ·NAICS 423720
NAICS 423720 · IRS SOI (C corp) · Census CBP 2023
179 SBA loans on record, $177M in volume, for NAICS 423720.
Data updated August 2026
The verdict · NAICS 423720
Pennsylvania leads Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers activity nationally, across 6K establishments employing N/A workers. IRS SOI doesn't publish margin data at this NAICS level.
Use Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers's NAICS benchmark as a comparison point, not a forecast for one business.
Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers is reported here with financial measures from IRS Statistics of Income and workforce measures from Census County Business Patterns. The page keeps those source systems distinct, shows unavailable fields rather than estimating them, and links the underlying industry context so readers can compare the same NAICS activity before interpreting a margin or payroll figure.
Source: IRS SOI (C corporation headline) and Census County Business Patterns 2023
Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers sits inside Wholesale Trade.
6,410 establishments employ N/A workers. Pennsylvania leads employment, followed by New Jersey and Michigan.
Employment
N/A
Total employees (Census CBP)
Avg Payroll / Employee
N/A
Annual compensation
Establishments
6,410
Business locations
Release-over-release change
establishment count decreased by 337. This comparison uses two published national Census County Business Patterns releases; suppressed fields are omitted rather than estimated.
Subscribe to this industry's release updates (RSS)| State | Employment |
|---|---|
| Pennsylvania | 3,868 |
| New Jersey | 2,378 |
| Michigan | 2,306 |
| Washington | 2,067 |
| Missouri | 1,587 |
| Utah | 1,275 |
| Nevada | 590 |
| Montana | 424 |
| Alaska | 222 |
Showing top 10 of 51 states
SBA Loans Approved
179
Total Loan Volume
$177M
Avg Loan Size
$987K
Jobs Supported
1,871
Top SBA Lender
The Huntington National Bank
12 loans in this industry
New Business Share
17.3% of borrowers were new/startup businesses
Benchmarking Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
Sources: IRS Statistics of Income (SOI) Business Tax Statistics · Census Bureau County Business Patterns 2023
NAICS 423720 · CBP 2023 · IRS SOI
According to the U.S. Census Bureau, which released its 2023 County Business Patterns dataset in June 2025, PlainBizBench benchmarks 2,002 U.S. industries against Internal Revenue Service Statistics of Income data. See our methodology for the full compilation process.
Read our methodology - how this data is sourced, computed, and verified.
Source: U.S. Census Bureau, County Business Patterns / SUSB Industry employment scale, payroll, and firm-size benchmarks · 2023
Every figure on PlainBizBench is rendered directly from federal source data, no number is typed in by an editor. This page aggregates profit-margin, payroll, entity-type, and SBA-lending benchmarks for this industry, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.