WOLFF'S PLUMBING & HEATING, INC. is a Montana corporation, registered on April 24, 2006. It is based at 614 S 32ND STREET SPEARFISH, SD 57783, United States. The company is currently listed as active on the Montana register, is registered under company number F048415 and carries EIN 460371092. Its officers and directors on record include DAN HARTMAN, BEN ARAMBEL, BEN ARAMBEL, among 4 on file. 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 STREET SPEARFISH, SD 57783United States |
| Mailing address | 614 S 32ND STREET, SPEARFISH, SD, 57783, US |
| Registration state | Montana |
| Status | Active |
| Formed in | South Dakota (foreign registration) |
| Home company | WOLFF'S PLUMBING & HEATING, INC. · Active |
| Registered | 24 April 2006 (over 20 years ago) |
| Officers & directors | DAN HARTMAN, director, officerBEN ARAMBEL, director, officer |
| Entity type |
|---|
| Corporation |
| Standing | compliant |
|---|
| Company number | F048415 |
|---|
| EIN | 460371092 |
|---|
| Employees (modeled) | ≈58 employees2025 |
|---|
| Registered agent | GREGORY PETERSON |
|---|
| Source registry | Montana 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 | |
|---|---|---|---|---|---|---|
| MontanaTHIS | WOLFF'S PLUMBING & HEATING, INC. | 2006-04-24 | GREGORY PETERSON | DAN HARTMANDirector, OfficerBEN ARAMBELDirector, Officer | Active | |
Filing ID F048415 Jurisdiction Foreign · CorporationFormed in South Dakota Principal address 614 S 32ND STREET SPEARFISH, SD 57783, United States Registered agent GREGORY PETERSON1725 MAJESTIC LANE, BILLINGS, MT, 59102 Officers DAN HARTMANDirector, Officer BEN ARAMBELDirector, Officer | ||||||
| Montana | WOLFF'S PLUMBING & HEATING, INC. | 1984-08-15 | JERRY EVENSON | GREGORY A HARTMANOfficerDIANE R HARTMANOfficer2 more | Revoked | |
| North Dakota | WOLFF'S PLUMBING & HEATING, INC. | 1983-07-06 | KEITH A CLEVELAND | — | 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 | |
Companies and people linked to WOLFF'S PLUMBING & HEATING, INC. in the state registers through shared officers, a shared registered agent, shared filing contacts or a shared address. Service companies file for many unrelated businesses — a shared agent, address or contact alone does not prove affiliation.
company person group former role
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 2026-06-16. Document getpalm-companies/9639-3565-2892.