Verified Nov 2026
Thermal & Fluid Systems
·
South Saint Paul, Minnesota
·
Since 1886
Waterous is a manufacturer of fire pumps, fire hydrants, underground valves, and foam fire suppression systems, including compressed air foam systems. The company is headquartered in South Saint Paul, Minnesota, was founded in 1886, and employs an estimated 200 to 500 people with an estimated annual revenue band of $10 to $50 million. It is privately held and serves fire departments, fire apparatus builders, and industrial facilities across the automotive, electric-vehicle, industrial-equipment, and aerospace sectors. Its product line includes pump, valve, and gear components, and the company reports a 2026 pump model archive update on its website.
Waterous at a glance
Revenue
$10-50M
Est. band
Employees
200-500
Founded
1886
Headquarters
South Saint Paul, Minnesota
Certifications
ISO 9001
Import activity
181
Industries
Automotive
Electric Vehicles
Industrial Equipment
Aerospace
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
181
Named foreign suppliers
25
Top origins
Italy · China · Brazil · South Korea
Shared foreign counterparties do not establish that these companies buy from Waterous.
What this tells a buyer
No customs data is available for this company, and its most recent public development is a 2026-09-16 listing for supply of axial fan impellers under part number 71888.
The company's listed products include pumps, transmissions, valves, gaskets, and gears, and it holds ISO 9001 certification.
Waterous is privately held, with no public ticker, and its scale is an estimated band rather than a reported figure.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
140 years in operation (founded 1886).
Holds ISO 9001 certification(s) per public sources.
Overview
Waterous is a manufacturer of fire pumps, fire hydrants, underground valves, and foam fire suppression systems, including compressed air foam systems. The company is headquartered in South Saint Paul, Minnesota, was founded in 1886, and employs an estimated 200 to 500 people with an estimated annual revenue band of $10 to $50 million. It is privately held and serves fire departments, fire apparatus builders, and industrial facilities across the automotive, electric-vehicle, industrial-equipment, and aerospace sectors. Its product line includes pump, valve, and gear components, and the company reports a 2026 pump model archive update on its website.
At a glance
Attribute | Detail |
|---|---|
Founded | 1886 |
Headquarters | South Saint Paul, Minnesota |
Employees | 200-500 |
Revenue | $10-50M (estimated) |
Primary capability | Thermal & Fluid Systems |
Certifications | ISO 9001 |
What Waterous makes
The company's listed products include pumps, transmissions, valves, gaskets, and gears, and it holds ISO 9001 certification.
Products and capabilities described on the company's own site include Pump, Transmission, Machining, Assembly, Gasket, Gear, Valve (source: waterousco.com).
Certifications
Waterous is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — waterousco.com
Trade and customs footprint
No customs data is available for this company, and its most recent public development is a 2026-09-16 listing for supply of axial fan impellers under part number 71888. US customs bill-of-lading records list 181 inbound shipments across 25 foreign suppliers, with top origins including Italy · China · Brazil · South Korea.
Latest developments
2026-09-16 — Supply of Axial Fan Impellers (Waterous P/N 71888) | CLEATUS (cleat.ai)
2026-09-08 — Pump Model Archives - Waterous Co (waterousco.com)
2026-08-20 — DIBBS #SPE8E7-26-T-3622 | Govly (govly.com)
2026-05-08 — Stop compromising between portability and power 💪 ⚡ | Stephen Washington (linkedin.com)
2026-03-23 — Waterous: Streamlined Manufacturing Operations with Dynamics (sunrise.co)
2026-02-02 — CS-CSU_PO_NAC_LV-RL_FT - Waterous Co (waterousco.com)
Company details
Waterous is privately held, with no public ticker, and its scale is an estimated band rather than a reported figure. Waterous was founded in 1886, has an estimated 200-500 employees, and is headquartered in South Saint Paul, Minnesota. On the LightSource stability read it is rated "Established & active": 140 years in operation (founded 1886). Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Waterous make?
Waterous is a manufacturer of fire pumps, fire hydrants, underground valves, and foam fire suppression systems, including compressed air foam systems. The company is headquartered in South Saint Paul, Minnesota, was founded in 1886, and employs an estimated 200 to 500 people with an estimated annual revenue band of $10 to $50 million. It is privately held and serves fire departments, fire apparatus builders, and industrial facilities across the automotive, electric-vehicle, industrial-equipment, and aerospace sectors. Its product line includes pump, valve, and gear components, and the company reports a 2026 pump model archive update on its website.
Where is Waterous headquartered?
Waterous is headquartered in South Saint Paul, Minnesota (125 Hardman Ave S, South Saint Paul, Minnesota, 55075).
When was Waterous founded?
Waterous was founded in 1886.
How big is Waterous?
Waterous has an estimated 200-500 employees, with revenue in the $10-50M range (estimated).
What certifications does Waterous hold?
Waterous lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does Waterous import from overseas suppliers?
US customs bill-of-lading records show 181 inbound shipments for Waterous, with top origins including Italy · China · Brazil · South Korea.
Related suppliers
Explore other suppliers in the LightSource directory:
Last verified Nov 2026. Is this your company? Request a correction.
Location & contact
Evaluating suppliers like these?
This profile comes from a public-data sample of around 1,000 companies. Book a demo to see the full LightSource marketplace and supplier discovery platform — 1M+ credible suppliers, with AI-run sourcing events.