WOLFF'S PLUMBING & HEATING, INC. is a North Dakota corporation, registered on July 6, 1983. It is based at 614 S 32ND ST BEN ARAMBEL, SPEARFISH, SD, 57783-0097, United States. The company is currently listed as active on the North Dakota register, is registered under company number 0000000832 and carries EIN 460371092. Public records for the company include 1 SoS registration, 2 federal contracts, 1 loan record and 12 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | WOLFF'S PLUMBING & HEATING, INC. |
|---|---|
| Principal address | 614 S 32ND ST BEN ARAMBELSPEARFISH57783-0097SDUnited States |
| Mailing address | PO BOX 97 BEN ARAMBEL, SPEARFISH, SD, 57783-0097, US |
| Registration state | North Dakota |
| Status | Active |
| Formed in | South Dakota (foreign registration) |
| Home company | WOLFF'S PLUMBING & HEATING, INC. · Active |
| Registered | 6 July 1983 (about 43 years ago) |
| Entity type | Corporation |
| Standing | compliant |
| Company number | 0000000832 |
| EIN | 460371092 |
| Employees (modeled) |
|---|
| ≈58 employees2025 |
| Registered agent | KEITH A CLEVELAND |
|---|
| Source registry | North Dakota Secretary of State · updated 15 June 2026 |
|---|
| Public records | 1 SoS registration |
|---|
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| Est. revenue (modeled) | $11M2025 |
|---|---|
| Federal contracts | $52K · 6 awards |
| SBA loans | $416K · approved amounts |
| Total obligated | $52K |
|---|---|
| Awards | 6 |
| Top agency | Department of the Interior |
| Action date | Agency | Obligated | |
|---|---|---|---|
| 2020-05-14 | Department of the Interior | $8K | |
| 2020-05-04 | Department of Agriculture | $9K | |
| 2019-05-02 | Department of Veterans Affairs | $7K | |
| 2017-03-21 | Department of Agriculture | $0 | |
| 2017-03-03 | Department of Agriculture | $8K | |
| 2016-09-20 | Department of the Interior | $19K | |
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| North DakotaTHIS | WOLFF'S PLUMBING & HEATING, INC. | 1983-07-06 | KEITH A CLEVELAND | — | Active | |
Filing ID 0000000832 Jurisdiction Foreign · CorporationFormed in South Dakota Principal address 614 S 32ND ST BEN ARAMBEL, SPEARFISH, SD, 57783-0097, United States Registered agent KEITH A CLEVELAND1125 TACOMA AVE APT 103, BISMARCK, ND, 58504-7456 Officers Not reported | ||||||
| Montana | WOLFF'S PLUMBING & HEATING, INC. | 1984-08-15 | JERRY EVENSON | GREGORY A HARTMANOfficerDIANE R HARTMANOfficer2 more | Revoked | |
| Montana | WOLFF'S PLUMBING & HEATING, INC. | 2006-04-24 | GREGORY PETERSON | DAN HARTMANDirector, OfficerBEN ARAMBELDirector, Officer | Active | |
| South Dakota | WOLFF'S PLUMBING & HEATING, INC. | 1979-01-17 | ROGER A. TELLINGHUISEN | — | Active | |
| Wyoming | Wolff's Plumbing & Heating, Inc. | 2006-07-24 | Ben Arambel | — | Active | |
Browse the indexed registries by state, or look up any debtor name free, at UCC lien search.
| Amount | Approved | Lender | Jobs | Status | |
|---|---|---|---|---|---|
| $416,000 | 04/05/2020 | Black Hills Community Bank, National Association | 35 | Paid in Full | |
Employee-benefit plan filings by WOLFF'S PLUMBING & HEATING, INC. with the Department of Labor. Employee and revenue figures are modeled estimates derived from retirement-plan participant counts and industry ratios — not official headcount or reported revenue.
| Employees (modeled) | ≈58 · plan year 2025 |
|---|---|
| Est. annual revenue (modeled) | $11M |
| Retirement plan assets | $2.9M |
| Benefit plans | 401(k) plan on file |
| Filing history | 27 plan years filed, 1999–2025 |
| Sponsor EIN | 46-0371092 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2025 | ≈58 | 62 (52 active) | $2.9M | $11M | 401(k) | |
| 2024 | ≈50 | 55 (45 active) | $2.3M | $9.5M | 401(k) | |
| 2023 | ≈46 | 46 (41 active) | $1.9M | $8.7M | 401(k) | |
| 2022 | ≈42 | 43 (38 active) | $1.5M | $8.2M | 401(k) | |
| 2021 | ≈37 | 37 (33 active) | $1.6M | $6.8M | 401(k) | |
| 2020 | ≈38 | 38 (34 active) | $1.4M | $6.3M | 401(k) | |
| 2019 | ≈34 | 32 (31 active) | $1.2M | $5.5M | 401(k) | |
| 2018 | ≈43 | 40 (39 active) | $960,101 | $7.1M | 401(k) | |
| 2017 | ≈40 | 39 (36 active) | $975,994 | $6.8M | 401(k) | |
| 2016 | ≈36 | 33 (32 active) | $749,879 | $6.1M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
| WOLFF'S PLUMBING & HEATING, INC. 401(K) SAVINGS PLAN AND TRUST | — | — | — | |
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Netstate aggregates public records from federal, state and municipal sources; records are matched to this company by its registered legal names. Latest source snapshot 2026-08-08. Document getpalm-companies/5421-5084-4369.