HEPAR BIOSCIENCE LLC is a South Dakota LLC, registered on August 31, 2007. It is based at 3148 N Hwy 105, North Sioux City, SD, 57049. The company is currently listed as active on the South Dakota register, is registered under company number DL014580 and carries EIN 743230210. Public records for the company include 1 SoS registration, 1 federal contract, 1 loan record, 2 USDOT records and 10 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | HEPAR BIOSCIENCE LLC |
|---|---|
| Principal address | 3148 N Hwy 105North Sioux City57049SDUnited States |
| Mailing address | PO Box 649, North Siioux City, SD, 57049 |
| Registration state | South Dakota |
| Status | Active |
| Registered | 31 August 2007 (almost 19 years ago) |
| Shareholders | MARK A NYLEN, owner |
| Entity type | LLC |
| Standing | compliant |
| Company number | DL014580 |
| EIN | 743230210 |
| Employees (modeled) | ≈20 employees2025 |
| USDOT carrier | USDOT 2511446 · 4 power units · 4 drivers · Interstate |
|---|
| Registered agent | MARK A NYLEN |
|---|
| Source registry | South Dakota Secretary of State · updated 15 June 2026 |
|---|
| Public records | 1 SoS registration |
|---|
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| Est. revenue (modeled) | $35.7M2025 |
|---|---|
| Federal contractor | Yes · 1 federal recipient record (SAM) |
| SBA loans | $356K · approved amounts |
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| South DakotaTHIS | HEPAR BIOSCIENCE LLC | 2007-08-31 | MARK A NYLEN | — | Active | |
Filing ID DL014580 Jurisdiction Domestic · LLC Principal address 3148 N Hwy 105, North Sioux City, SD, 57049 Registered agent MARK A NYLEN1000 WYNSTONE DRIVE, JEFFERSON, SD, 57038 Officers Not reported | ||||||
Companies and people linked to HEPAR BIOSCIENCE LLC 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.
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Browse the indexed registries by state, or look up any debtor name free, at UCC lien search.
| State | License / ID | Type | Issued | Status | |
|---|---|---|---|---|---|
| South Dakota | 2511446 | Interstate carrier | — | Active | |
| South Dakota | 2511446 | Carrier authority (USDOT) | — | Active | |
| Amount | Approved | Lender | Jobs | Status | |
|---|---|---|---|---|---|
| $355,600 | 04/03/2020 | Northwest Bank | 16 | Paid in Full | |
Employee-benefit plan filings by HEPAR BIOSCIENCE LLC 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) | ≈20 · plan year 2025 |
|---|---|
| Est. annual revenue (modeled) | $35.7M |
| Retirement plan assets | $3.6M |
| Benefit plans | 401(k) plan on file |
| Filing history | 10 plan years filed, 2016–2025 |
| Sponsor EIN | 74-3230210 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2025 | ≈20 | 25 (18 active) | $3.6M | $35.7M | 401(k) | |
| 2024 | ≈20 | 23 (18 active) | $2.9M | $36.7M | 401(k) | |
| 2023 | ≈17 | 21 (15 active) | $2.1M | $33.9M | 401(k) | |
| 2022 | ≈14 | 18 (13 active) | $1.4M | $25.6M | 401(k) | |
| 2021 | ≈11 | 17 (10 active) | $1.7M | $17.9M | 401(k) | |
| 2020 | ≈17 | 18 (15 active) | $1.5M | $22.2M | 401(k) | |
| 2019 | ≈18 | 16 (16 active) | $1.4M | $25.7M | 401(k) | |
| 2018 | ≈18 | 16 (16 active) | $979,728 | $27.1M | 401(k) | |
| 2017 | ≈11 | 10 (10 active) | $918,322 | $19.2M | 401(k) | |
| 2016 | ≈10 | 9 (9 active) | $184,161 | $7.4M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| HEPAR BIOSCIENCE 401(K) PLAN | — | — | — | |
| HEPAR BIOSCIENCE LLC 401(K) PLAN | — | — | — | |
| HEPAR BIOSCIENCE 401(K) PLAN | — | — | — | |
| HEPAR BIOSCIENCE 401(K) PLAN | — | — | — | |
| HEPAR BIOSCIENCE 401(K) PLAN | — | — | — | |
| HEPAR BIOSCIENCE 401(K) PLAN | — | — | — | |
| HEPAR BIOSCIENCE 401(K) PLAN | — | — | — | |
| HEPAR BIOSCIENCE 401(K) PLAN | — | — | — | |
| HEPAR BIOSCIENCE LLC | — | — | — | |
| HEPAR BIOSCIENCE 401(K) PLAN | — | — | — | |
Federal court records load when you reach this section.
Companies adjacent to HEPAR BIOSCIENCE LLC in the South Dakota Secretary of State register, in alphabetical order.
1 company is registered at 3148 N Hwy 105, North Sioux 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 2026-06-16. Document getpalm-companies/9667-6381-7394.