KETEL THORSTENSON, LLP is a South Dakota LLP, registered on December 26, 1995. It is based at 810 Quincy St, Rapid City, SD, 57701. The company is currently listed as active on the South Dakota register, is registered under company number DR000028 and carries EIN 460257538. Its E-Verify enrollment reports a workforce of 100 to 499 employees, hiring at 1 site in South Dakota. It operates in accounting, tax preparation, bookkeeping, and payroll services (NAICS 54121). Public records for the company include 1 SoS registration, 3 federal contracts, 2 loan records, 3 E-Verify records and 16 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | KETEL THORSTENSON, LLP |
|---|---|
| Principal address | 810 Quincy StRapid City57701SDUnited States |
| Registration state | South Dakota |
| Status | Active |
| Registered | 26 December 1995 (over 30 years ago) |
| Entity type | LLP |
| Standing | compliant |
| Company number | DR000028 |
| EIN | 460257538 |
| Industry | Accounting, Tax Preparation, Bookkeeping, and Payroll Services · NAICS 54121 |
| Employees (modeled) | ≈146 employees2025 |
| Workforce size | 100 to 499 employees · updated 17 January 2026 |
|---|
| Hiring sites | 1 site in South Dakota |
|---|
| Registered agent | Denise M Webster |
|---|
| 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 | $8.5M |
|---|---|
| Est. revenue (modeled) | $38.5M2025 |
| Federal contractor | Yes · 3 federal recipient records (SAM) |
| SBA loans | $2.1M · approved amounts |
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| South DakotaTHIS | KETEL THORSTENSON, LLP | 1995-12-26 | Denise M Webster | — | Active | |
Filing ID DR000028 Jurisdiction Domestic · LLP Principal address 810 Quincy St, Rapid City, SD, 57701 Registered agent Denise M Webster810 QUINCY ST, 810 QUINCY ST, RAPID CITY, SD, 57701 Officers Not reported | ||||||
| Colorado | Ketel Thorstenson, LLP | 2022-03-22 | Brittaney Ellibee | — | Withdrawn | |
| District of Columbia | Ketel Thorstenson, LLP | 1995-12-26 | NORTHWEST REGISTERED AGENT SERVICE, INC | Minnerath, MichelleOfficerMaguire, JackieOfficer18 more | Active | |
| Montana | KETEL THORSTENSON, LLP | 2016-02-29 | — | Brady LarsenPartnerJeffrey YenniePartner18 more | Active | |
| Nebraska | KETEL THORSTENSON, LLP | 1998-02-11 | KRIS FORSEN | — | Active | |
| Wyoming | Ketel Thorstenson, LLP | 2018-11-02 | Todd Hoese | — | Active | |
Companies and people linked to KETEL THORSTENSON, LLP 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 | |
|---|---|---|---|---|---|
| $75,000 | 1994-12-09 | Alpine Bank | — | CANCLD | |
| $1,980,362 | 04/13/2020 | Security First Bank | 174 | Paid in Full | |
| State | Workforce | Hiring sites | Enrolled | Industry | Status | |
|---|---|---|---|---|---|---|
| 2 states | 100 to 499 | 4 | 9/11/2020 | PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES (54) | Open | |
| South Dakota | 100 to 499 | 1 | 7/21/2010 | ADMINISTRATIVE AND SUPPORT AND WASTE MANAGEMENT AND REMEDIATION SERVICES (56) | Terminated | |
| 2 states | 100 to 499 | 3 | 4/22/2024 | PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES (54) | Open | |
Employee-benefit plan filings by KETEL THORSTENSON, LLP 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) | ≈146 · plan year 2025 |
|---|---|
| Est. annual revenue (modeled) | $38.5M |
| Benefit plans | 401(k) plan on file |
| Filing history | 27 plan years filed, 1999–2025 |
| Sponsor EIN | 46-0257538 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2025 | ≈146 | 133 (131 active) | — | $38.5M | Welfare | |
| 2024 | ≈160 | 171 (144 active) | $35.5M | $46.6M | 401(k) | |
| 2023 | ≈157 | 164 (141 active) | $32.4M | $43.9M | 401(k) | |
| 2022 | ≈134 | 172 (121 active) | $26.6M | $37.3M | 401(k) | |
| 2021 | ≈143 | 177 (129 active) | $31.8M | $39.2M | 401(k) | |
| 2020 | ≈146 | 170 (131 active) | $27.7M | $39M | 401(k) | |
| 2019 | ≈142 | 177 (128 active) | $23.6M | $36.1M | 401(k) | |
| 2018 | ≈132 | 176 (119 active) | $20M | $34.1M | 401(k) | |
| 2017 | ≈139 | 201 (125 active) | $20.7M | $33.6M | 401(k) | |
| 2016 | ≈172 | 204 (155 active) | $19.9M | $39.1M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
| KETEL THORSTENSON, LLP 401K PROFIT SHARING PLAN | — | — | — | |
Federal court records load when you reach this section.
Companies adjacent to KETEL THORSTENSON, LLP in the South Dakota Secretary of State register, in alphabetical order.
13 companies are registered at 810 Quincy St, 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/0297-4833-3159.