GEOTEK ENGINEERING & TESTING SERVICES, INC. is a South Dakota corporation, registered on March 1, 1988. It is based at 909 East 50th Street North, Sioux Falls, SD, 57104. The company is currently listed as active on the South Dakota register and is registered under company number DB027171. Its E-Verify enrollment reports a workforce of 20 to 99 employees, hiring at 1 site in South Dakota. Public records for the company include 1 SoS registration, 2 federal contracts, 3 E-Verify records and 15 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | GEOTEK ENGINEERING & TESTING SERVICES, INC. |
|---|---|
| Principal address | 909 East 50th Street NorthSioux Falls57104SDUnited States |
| Registration state | South Dakota |
| Status | Active |
| Registered | 1 March 1988 (over 38 years ago) |
| Entity type | Corporation |
| Standing | compliant |
| Company number | DB027171 |
| Workforce size | 20 to 99 employees Β· updated 10 March 2026 |
| Hiring sites | 1 site in South Dakota |
| Registered agent | RALPH LINDNER |
| Source registry | South Dakota Secretary of State Β· updated 15 June 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.
| Federal contracts | $89K Β· 16 awards |
|---|
| Total obligated | $89K |
|---|---|
| Awards | 16 |
| Top agency | Department of Defense |
| Action date | Agency | Obligated | |
|---|---|---|---|
| 2020-07-24 | Department of Defense | $-15851.75 | |
| 2020-05-29 | Department of Defense | $4K | |
| 2020-04-06 | Department of Defense | $36K | |
| 2020-02-09 | Department of Defense | $40K | |
| 2012-08-02 | Department of Defense | $16K | |
| 2010-08-02 | Department of Justice | $980 | |
| 2009-08-27 | Department of Justice | $900 | |
| 2008-09-22 | Department of Veterans Affairs | $45 | |
| 2008-09-03 | Department of Veterans Affairs | $160 | |
| 2008-08-12 | Department of Justice | $3K | |
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| South DakotaTHIS | GEOTEK ENGINEERING & TESTING SERVICES, INC. | 1988-03-01 | RALPH LINDNER | β | Active | |
Filing ID DB027171 Jurisdiction Domestic Β· Corporation Principal address 909 East 50th Street North, Sioux Falls, SD, 57104 Registered agent RALPH LINDNER909 E 50TH ST N, SIOUX FALLS, SD, 57104-0601 Officers Not reported | ||||||
| Iowa | GEOTEK ENGINEERING & TESTING SERVICES, INC. | 1992-04-08 | DARREL HANSEN | JARED HASKINSDirectorLINDNER, RALPHOfficer3 more | Active | |
| Minnesota | GEOTEK ENGINEERING & TESTING SERVICES, INC. | 1993-04-21 | Cole Hanson | RALPH LINDNEROfficer | Active | |
| North Dakota | GEOTEK ENGINEERING & TESTING SERVICES, INC. | 2009-08-28 | JOEL ZELTINGER | β | Active | |
Companies and people linked to GEOTEK ENGINEERING & TESTING SERVICES, 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 β 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.
| State | Workforce | Hiring sites | Enrolled | Industry | Status | |
|---|---|---|---|---|---|---|
| South Dakota | 20 to 99 | 1 | 8/10/2018 | PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES (54) | Open | |
| South Dakota | 20 to 99 | 1 | 5/28/2008 | PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES (54) | Open | |
| South Dakota | 20 to 99 | 1 | 2/25/2025 | PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES (54) | Terminated | |
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| GEOTEK ENGINEERING & TESTING SERVICES, INC. PROFIT SHARING/401(K) PLAN | β | β | β | |
| GEOTEK ENGINEERING & TESTING SERVICES INC. PROFIT SHARING/401(K) PLAN | β | β | β | |
| GEOTEK ENGINEERING & TESTING SERVICES, INC. PROFIT SHARING/401(K) PLAN | β | β | β | |
| GEOTEK ENGINEERING & TESTING SERVICES, INC. PROFIT SHARING/401(K) PLAN | β | β | β | |
| GEOTEK ENGINEERING & TESTING SERVICES, INC. PROFIT SHARING/401(K) PLAN | β | β | β | |
| GEOTEK ENGINEERING & TESTING SERVICES, INC. PROFIT SHARING/401(K) PLAN | β | β | β | |
| GEOTEK ENGINEERING & TESTING SERVICES, INC. PROFIT SHARING/401(K) PLAN | β | β | β | |
| GEOTEK ENGINEERING & TESTING SERVICES INC. PROFIT SHARING/401K PLAN | β | β | β | |
| GEOTEK ENGINEERING & TESTING SERVICES INC. PROFIT SHARING/ 401(K) PLAN | β | β | β | |
| GEOTEK ENGINEERING & TESTING SERVICES, INC. PROFIT SHARING/401(K) PLAN | β | β | β | |
Federal court records load when you reach this section.
Companies adjacent to GEOTEK ENGINEERING & TESTING SERVICES, INC. in the South Dakota Secretary of State register, in alphabetical order.
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/5073-1014-6736.