TAMARACK GROVE ENGINEERING, PLLC is a South Dakota LLC, registered on October 14, 2020. It is based at 851 North Hickory, Suite 200, Meridian, ID, 83642. The company is currently listed as active on the South Dakota register, is registered under company number FL189366 and carries EIN 26-0706709. Its E-Verify enrollment reports a workforce of 20 to 99 employees, hiring at 1 site in Idaho. Public records for the company include 1 SoS registration, 3 licenses, 1 federal contract, 1 loan record, 2 H-1B filings, 1 E-Verify record and 8 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | TAMARACK GROVE ENGINEERING, PLLC |
|---|---|
| Principal address | 851 North Hickory, Suite 200Meridian83642IDUnited States |
| Mailing address | PO Box 98, Meridian, ID, 83680 |
| Registration state | South Dakota |
| Status | Active |
| Formed in | Idaho (foreign registration) |
| Home company | TAMARACK GROVE ENGINEERING, PLLC · Active |
| Registered | 14 October 2020 (almost 6 years ago) |
| Entity type | LLC |
| Standing | compliant |
| Company number | FL189366 |
| EIN | 26-0706709 |
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| Employees (modeled) | ≈36 employees2024 |
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| Workforce size | 20 to 99 employees · updated 7 July 2017 |
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| Hiring sites | 1 site in Idaho |
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| H-1B filings | 2 LCA filings, FY 2018–2024 |
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| Registered agent | COGENCY GLOBAL INC |
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| Source registry | South Dakota Secretary of State · updated 15 June 2026 |
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| Public records | 1 SoS registration |
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| Est. revenue (modeled) | $7.5M2024 |
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| Federal contractor | Yes · 1 federal recipient record (SAM) |
| SBA loans | $440K · approved amounts |
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| South DakotaTHIS | TAMARACK GROVE ENGINEERING, PLLC | 2020-10-14 | COGENCY GLOBAL INC | — | Active | |
Filing ID FL189366 Jurisdiction Foreign · LLCFormed in Idaho Principal address 851 North Hickory, Suite 200, Meridian, ID, 83642 Registered agent COGENCY GLOBAL INC207 E CAPITOL AVE, SUITE 101B, PIERRE, SD, 57501-2629 Officers Not reported | ||||||
| Alaska | Tamarack Grove Engineering, PLLC | 2015-04-20 | COGENCY GLOBAL INC. | Douglas HardinMemberBrian SielaffManager, Member | Active | |
| Arkansas | TAMARACK GROVE ENGINEERING, PLLC | 2015-02-03 | COGENCY GLOBAL INC | BRIAN JAMES SIELAFFManagerBRIAN J SIELAFFOfficer | Active | |
| Arizona | TAMARACK GROVE ENGINEERING, PLLC | 2019-10-08 | Cogency Global Inc | BRIAN J SIELAFFManager | Active | |
| California | TAMARACK GROVE ENGINEERING, LLC | 2019-09-25 | COGENCY GLOBAL INC | Douglas Dean HardinManager, OfficerBRIAN JAMES SIELAFFOfficer, Manager | Active | |
| Colorado | Tamarack Grove Engineering, PLLC | 2019-09-24 | COGENCY GLOBAL INC | — | Active | |
| Connecticut | TAMARACK GROVE ENGINEERING, LLC | 2015-02-17 | COGENCY GLOBAL INC | DOUGLAS DEAN HARDINOfficerBRIAN JAMES SIELAFFOfficer | Active | |
| Florida | TAMARACK GROVE ENGINEERING, PLLC, LLC | 2014-12-24 | COGENCY GLOBAL INC | Douglas D HardinOfficer, MemberBRIAN J SIELAFFManager | Active | |
| Georgia | TAMARACK GROVE ENGINEERING, PLLC | 2015-01-15 | Cogency Global Inc | — | Active | |
| Hawaii | TAMARACK GROVE ENGINEERING, PLLC | 2015-04-28 | COGENCY GLOBAL INC | HARDIN,DOUGLAS DEANMemberSIELAFF,BRIAN JAMESMember | Active | |
| Iowa | TAMARACK GROVE ENGINEERING, PLLC | 2015-05-11 | COGENCY GLOBAL INC | — | Active | |
| Idaho | TAMARACK GROVE ENGINEERING, PLLC | 2003-12-15 | BONNIE SIELAFF | Douglas Dean HardinMemberBrian J SielaffManager | Active | |
| Illinois | TAMARACK GROVE ENGINEERING, PLLC | 2015-04-24 | COGENCY GLOBAL INC | DOUGLAS DEAN HARDINManagerBRIAN JAMES SIELAFFManager | Active | |
| Indiana | TAMARACK GROVE ENGINEERING, PLLC | 2015-01-30 | COGENCY GLOBAL INC | DOUGLAS DEAN HARDINMemberBRIAN JAMES SIELAFFMember | Active | |
| Kansas | TAMARACK GROVE ENGINEERING, PLLC | 2015-01-21 | COGENCY GLOBAL INC | — | Active | |
| Kentucky | TAMARACK GROVE ENGINEERING, PLLC | 2014-11-25 | COGENCY GLOBAL INC | DOUGLAS DEAN HARDINMemberBRIAN JAMES SIELAFFMember | Active | |
| Louisiana | TAMARACK GROVE ENGINEERING, PLLC | 2015-01-26 | COGENCY GLOBAL INC | MR BRIAN JAMES SIELAFFManager, MemberDOUGLAS DEAN HARDINMember | Active | |
| Massachusetts | TAMARACK GROVE ENGINEERING, PLLC | 2015-06-01 | COGENCY GLOBAL INC | MR BRIAN JAMES SIELAFFOfficer, Manager | Active | |
| Maryland | TAMARACK GROVE ENGINEERING, PLLC | 2015-05-26 | COGENCY GLOBAL INC | — | Active | |
| Maine | TAMARACK GROVE ENGINEERING, PLLC | 2015-04-28 | COGENCY GLOBAL INC | — | Active | |
| Michigan | TAMARACK GROVE ENGINEERING, PLLC | 2015-02-20 | COGENCY GLOBAL INC | — | Active | |
| Minnesota | Tamarack Grove Engineering, PLLC | 2015-03-13 | COGENCY GLOBAL INC | BRIAN JAMES SIELAFFManager | Active | |
| Mississippi | Tamarack Grove Engineering, PLLC | 2015-06-01 | Cogency Global Inc | Douglas Dean HardinOfficer, MemberBrian James SielaffManager, Member | Active | |
| Montana | TAMARACK GROVE ENGINEERING, PLLC | 2015-02-04 | COGENCY GLOBAL INC | Brian James SielaffManager | Active | |
| North Carolina | Tamarack Grove Engineering, PLLC | 2015-06-22 | COGENCY GLOBAL INC | — | Active | |
| North Dakota | Tamarack Grove Engineering, PLLC | 2019-10-18 | COGENCY GLOBAL INC | — | Active | |
| Nebraska | TAMARACK GROVE ENGINEERING, LLC | 2019-09-11 | COGENCY GLOBAL INC | — | Active | |
| New Hampshire | Tamarack Grove Engineering, PLLC | 2015-04-06 | COGENCY GLOBAL INC | Brian James SielaffManager, MemberDouglas Dean HardinOfficer, Member | Active | |
| New Mexico | TAMARACK GROVE ENGINEERING, PLLC | 2020-03-06 | COGENCY GLOBAL INC | Brian J. SielaffManagerBonnie J. SielaffManager | Active | |
| Nevada | TAMARACK GROVE ENGINEERING, PLLC | 2014-09-15 | COGENCY GLOBAL INC.* | Douglas D HardinMemberBRIAN J SIELAFFManager | Active | |
| New York | TAMARACK GROVE ENGINEERING, PLLC | 2016-02-08 | NATIONAL CORPORATE RESEARCH, LTD | — | Active | |
| Oklahoma | TAMARACK GROVE ENGINEERING, PLLC | 2014-10-02 | COGENCY GLOBAL, INC | — | Active | |
| Oregon | TAMARACK GROVE ENGINEERING, PLLC | 2015-01-20 | COGENCY GLOBAL INC | BRIAN JAMES SIELAFFMemberDOUGLAS DEAN HARDINMember | Active | |
| Pennsylvania | Tamarack Grove Engineering, PLLC | 2015-08-13 | — | Brian SielaffDirector, OfficerDouglas HardinDirector | Active | |
| Rhode Island | TAMARACK GROVE ENGINEERING PLLC | 2015-04-10 | COGENCY GLOBAL INC | — | Active | |
| South Carolina | TAMARACK GROVE ENGINEERING, PLLC | 2015-03-16 | COGENCY GLOBAL INC | — | Active | |
| Tennessee | TAMARACK GROVE ENGINEERING, PLLC | 2015-03-16 | COGENCY GLOBAL INC | — | Active | |
| Texas | Tamarack Grove Engineering, PLLC | 2015-05-26 | COGENCY GLOBAL INC | DOUGLAS D HARDINDirector, OfficerBRIAN J SIELAFFDirector, Officer1 more | Active | |
| Utah | TAMARACK GROVE ENGINEERING, PLLC | 2020-03-04 | COGENCY GLOBAL INC | Douglas Dean HardinMemberBRIAN SIELAFFMember1 more | Active | |
| Virginia | TAMARACK GROVE ENGINEERING, PLLC | 2015-09-09 | COGENCY GLOBAL INC | — | Active | |
| Vermont | TAMARACK GROVE ENGINEERING, PLLC | 2015-03-17 | COGENCY GLOBAL INC | Brian James SielaffManagerDouglas Dean HardinOwner | Active | |
| Washington | TAMARACK GROVE ENGINEERING, PLLC | 2015-03-02 | COGENCY GLOBAL INC | DOUGLAS DEAN HARDINDirectorBRIAN JAMES SIELAFFDirector | Active | |
| West Virginia | TAMARACK GROVE ENGINEERING, PLLC | 2020-10-08 | COGENCY GLOBAL INC | BRIAN JAMES SIELAFFManager | Active | |
| West Virginia | TAMARACK GROVE ENGINEERING, PLLC | 2015-02-18 | NATIONAL REGISTERED AGENTS INC | BRIAN SIELAFFMember | Revoked | |
| Wyoming | Tamarack Grove Engineering, PLLC | 2015-01-09 | COGENCY GLOBAL INC | — | Active | |
Companies and people linked to TAMARACK GROVE ENGINEERING, PLLC 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.
| State | License / ID | Type | Issued | Status | |
|---|---|---|---|---|---|
| Illinois | 184008451-0006 | DESIGN FIRM | 2025-03-26 | ACTIVE | |
| Alaska | — | — | 2023-02-06 | Active | |
| New Hampshire | 02313 | Engineer COA | 2015-02-26 | Active | |
| Amount | Approved | Lender | Jobs | Status | |
|---|---|---|---|---|---|
| $440,011 | 04/09/2020 | Glacier Bank | 39 | Paid in Full | |
| Case | Filed | Job title | Wage | Worksite | Status | |
|---|---|---|---|---|---|---|
| I-200-24233-279278 | 2024-08-20 | Engineering Team Leader | $132,000/yr | Elmwood Park | Certified | |
| I-200-18078-316377 | 2018-03-19 | STRUCTURAL ENGINEERING, EIT | $41,642/yr | BOISE | CERTIFIED | |
| State | Workforce | Hiring sites | Enrolled | Industry | Status | |
|---|---|---|---|---|---|---|
| Idaho | 20 to 99 | 1 | 7/7/2017 | PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES (54) | Open | |
Employee-benefit plan filings by TAMARACK GROVE ENGINEERING, PLLC 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) | ≈36 · plan year 2024 |
|---|---|
| Est. annual revenue (modeled) | $7.5M |
| Retirement plan assets | $2M |
| Benefit plans | 401(k) plan on file |
| Filing history | 8 plan years filed, 2017–2024 |
| Sponsor EIN | 26-0706709 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2024 | ≈36 | 37 (32 active) | $2M | $7.5M | 401(k) | |
| 2023 | ≈29 | 32 (26 active) | $1.8M | $6.3M | 401(k) | |
| 2022 | ≈26 | 33 (23 active) | $1.3M | $5.4M | 401(k) | |
| 2021 | ≈31 | 38 (28 active) | $963,876 | $5.9M | 401(k) | |
| 2020 | ≈24 | 34 (22 active) | $647,063 | $4.4M | 401(k) | |
| 2019 | ≈27 | 29 (24 active) | $445,827 | $3.1M | 401(k) | |
| 2018 | ≈18 | 22 (16 active) | $271,771 | $3.3M | 401(k) | |
| 2017 | ≈22 | 20 (20 active) | $167,386 | $3.6M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| TGE 401(K) PLAN | — | — | — | |
| TGE 401(K) PLAN | — | — | — | |
| TGE 401(K) PLAN | — | — | — | |
| TGE 401(K) PLAN | — | — | — | |
| TGE 401(K) PLAN | — | — | — | |
| TGE 401(K) PLAN | — | — | — | |
| TGE 401(K) PLAN | — | — | — | |
| TGE 401(K) PLAN | — | — | — | |
Federal court records load when you reach this section.
Companies adjacent to TAMARACK GROVE ENGINEERING, PLLC in the South Dakota Secretary of State register, in alphabetical order.
8 companies are registered at 851 North Hickory, Suite 200, Meridian — 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 2026-07-14. Document getpalm-companies/6525-7945-9659.