NORTHWESTERN ENGINEERING COMPANY is a South Dakota corporation, registered on April 13, 1927. It is based at 314 FOUNDERS PARK DRIVE, RAPID CITY, SD, 57701-8090. The company is currently listed as active on the South Dakota register, is registered under company number DB000129 and carries EIN 460172190. Its E-Verify enrollment reports a workforce of 20 to 99 employees, hiring at 6 sites across 2 states. It operates in offices of real estate agents and brokers (NAICS 53121). Public records for the company include 1 SoS registration, 4 federal contracts, 1 loan record, 1 E-Verify record and 17 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | NORTHWESTERN ENGINEERING COMPANY |
|---|---|
| Principal address | 314 FOUNDERS PARK DRIVERAPID CITY57701-8090SDUnited States |
| Mailing address | PO BOX 2624, RAPID CITY, SD, 57709-2624 |
| Registration state | South Dakota |
| Status | Active |
| Registered | 13 April 1927 (over 99 years ago) |
| Entity type | Corporation |
| Standing | compliant |
| Company number | DB000129 |
| EIN | 460172190 |
| Industry | Offices of Real Estate Agents and Brokers · NAICS 53121 |
| Employees (modeled) | ≈78 employees2025 |
|---|
| Workforce size | 20 to 99 employees · updated 21 June 2011 |
|---|
| Hiring sites | 6 sites across 2 states |
|---|
| Registered agent | DAVID L. CRABB |
|---|
| Source registry | South Dakota Secretary of State · updated 25 May 2026 |
|---|
| Public records | 1 SoS registration |
|---|
Direct email, phone, website, address and the contact person are unlocked with a Pro subscription. Create an account to reveal them.
| Est. annual revenue | $12.4M |
|---|---|
| Est. revenue (modeled) | $46.2M2025 |
| Federal contracts | $62K · 36 awards |
| SBA loans | $732K · approved amounts |
| Total obligated | $62K |
|---|---|
| Awards | 36 |
| Top agency | General Services Administration |
| Action date | Agency | Obligated | |
|---|---|---|---|
| 2010-01-01 | General Services Administration | $2K | |
| 2009-10-01 | General Services Administration | $2K | |
| 2009-10-01 | General Services Administration | $2K | |
| 2009-10-01 | General Services Administration | $2K | |
| 2009-07-01 | General Services Administration | $2K | |
| 2009-07-01 | General Services Administration | $2K | |
| 2009-07-01 | General Services Administration | $2K | |
| 2009-04-01 | General Services Administration | $2K | |
| 2009-04-01 | General Services Administration | $2K | |
| 2009-04-01 | General Services Administration | $2K | |
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| South DakotaTHIS | NORTHWESTERN ENGINEERING COMPANY | 1927-04-13 | DAVID L. CRABB | — | Active | |
Filing ID DB000129 Jurisdiction Domestic · Corporation Principal address 314 FOUNDERS PARK DRIVE, RAPID CITY, SD, 57701-8090 Registered agent DAVID L. CRABB314 FOUNDERS PARK DRIVE, RAPID CITY, SD, 57701 Officers Not reported | ||||||
| Colorado | NORTHWESTERN ENGINEERING COMPANY>> | 1943-05-10 | Colorado Registered Agents Inc | — | Active | |
| Florida | NORTHWESTERN ENGINEERING COMPANY | 2013-05-10 | KELLI CRABB | Gerald MizelOfficer, DirectorDAVID L CRABBOfficer4 more | Inactive | |
| Idaho | NORTHWESTERN ENGINEERING COMPANY | 1937-07-23 | — | — | Suspended | |
| Kansas | NORTHWESTERN ENGINEERING COMPANY | 1942-10-07 | MARLIN S. CASEY | — | Withdrawn | |
| Kansas | NORTHWESTERN ENGINEERING COMPANY | 1955-04-28 | THE CORPORATION COMPANY | — | Suspended | |
| Louisiana | NORTHWESTERN ENGINEERING COMPANY | 1965-12-01 | — | — | Withdrawn | |
| Montana | NORTHWESTERN ENGINEERING COMPANY | 1931-10-16 | NO AGENT NAME | — | Inactive | |
| Montana | NORTHWESTERN ENGINEERING COMPANY | 1943-05-24 | C T CORPORATION SYSTEM | — | Withdrawn | |
| Nebraska | NORTHWESTERN ENGINEERING COMPANY | 1987-08-20 | BEVIN BUMP | — | Inactive | |
| Oklahoma | NORTHWESTERN ENGINEERING COMPANY | 1945-12-13 | KATHERINE MANTON | — | Withdrawn | |
| Texas | NORTHWESTERN ENGINEERING COMPANY | 1965-06-11 | CT CORP SYSTEM | — | Suspended | |
| Texas | NORTHWESTERN ENGINEERING COMPANY | 1953-02-11 | — | — | Expired | |
| Wyoming | Northwestern Engineering Company | 1981-09-02 | Brooke Undeberg | — | Active | |
Companies and people linked to NORTHWESTERN ENGINEERING COMPANY 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 | |
|---|---|---|---|---|---|
| $732,117 | 04/09/2020 | Security First Bank | 63 | Paid in Full | |
| State | Workforce | Hiring sites | Enrolled | Industry | Status | |
|---|---|---|---|---|---|---|
| 2 states | 20 to 99 | 6 | 9/30/2009 | REAL ESTATE AND RENTAL AND LEASING (53) | Open | |
Employee-benefit plan filings by NORTHWESTERN ENGINEERING COMPANY 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) | ≈78 · plan year 2025 |
|---|---|
| Est. annual revenue (modeled) | $46.2M |
| Retirement plan assets | $5.7M |
| Benefit plans | 401(k) plan on file |
| Filing history | 25 plan years filed, 1999–2025 |
| Sponsor EIN | 46-0172190 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2025 | ≈78 | 86 (70 active) | $5.7M | $46.2M | 401(k) | |
| 2024 | ≈77 | 85 (69 active) | $5.2M | $43.5M | 401(k) | |
| 2023 | ≈71 | 77 (64 active) | $4.8M | $41.8M | 401(k) | |
| 2022 | ≈57 | 66 (51 active) | $4.1M | $36.7M | 401(k) | |
| 2021 | ≈62 | 68 (56 active) | $5.1M | $38.6M | 401(k) | |
| 2020 | ≈62 | 63 (56 active) | $5.4M | $39.7M | 401(k) | |
| 2019 | ≈61 | 62 (55 active) | $5.2M | $38.3M | 401(k) | |
| 2018 | ≈62 | 65 (56 active) | $5.2M | $39.2M | 401(k) | |
| 2017 | ≈61 | 66 (55 active) | $6.3M | $37.8M | 401(k) | |
| 2016 | ≈76 | 78 (68 active) | $5.2M | $38.5M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
| NORTHWESTERN ENGINEERING COMPANY 401(K) PLAN | — | — | — | |
Federal court records load when you reach this section.
Companies adjacent to NORTHWESTERN ENGINEERING COMPANY in the South Dakota Secretary of State register, in alphabetical order.
6 companies are registered at 314 FOUNDERS PARK DRIVE, RAPID CITY — shared registered-office and agent addresses are common; a shared address alone does not link businesses.
Netstate aggregates public records from federal, state and municipal sources; records are matched to this company by its registered legal names. Latest source snapshot 2026-07-08. Document getpalm-companies/9354-3362-2427.