TERRACON CONSULTANTS, INC. is a South Dakota corporation, registered on March 5, 2004. It is based at 10841 S Ridgeview Road, OLATHE, KS, 66061. The company is currently listed as active on the South Dakota register, is registered under company number FB028296 and carries EIN 870357749. Its E-Verify enrollment reports a workforce of 5,000 to 9,999 employees, hiring at 6 sites across 5 states. Public records for the company include 1 SoS registration, 310 permits, 107 licenses, 57 federal contracts, 253 H-1B filings, 3 E-Verify records, 4 USDOT records and 2 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | TERRACON CONSULTANTS, INC. |
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| Principal address | 10841 S Ridgeview RoadOLATHE66061KSUnited States4900 S PENNSYLVANIA AVE STE 100, CUDAHY, WI, 53110-1342 |
| Registration state | South Dakota |
| Status | Active |
| Formed in | Delaware (foreign registration) |
| Home company | TERRACON CONSULTANTS, INC. |
| Registered | 5 March 2004 (over 22 years ago) |
| Shareholders | ANNIE WESKE, ownerGAYLE PACKER, owner |
| Entity type | Corporation |
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| Standing | compliant |
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| Company number | FB028296 |
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| EIN | 870357749 |
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| Employees (modeled) | ≈92 employees2011 |
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| Workforce size | 5,000 to 9,999 employees · updated 11 November 2025 |
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| Hiring sites | 6 sites across 5 states |
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| H-1B filings | 253 LCA filings, FY 2016–2025 |
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| USDOT carrier | USDOT 4528082 (+1 more) · 0 power units · 4 drivers · Interstate |
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| Registered agent | CORPORATION SERVICE COMPANY |
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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) | $14.2M2011 |
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| Federal contractor | Yes · 57 federal recipient records (SAM) |
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| South DakotaTHIS | TERRACON CONSULTANTS, INC. | 2004-03-05 | CORPORATION SERVICE COMPANY | — | Active | |
Filing ID FB028296 Jurisdiction Foreign · CorporationFormed in Delaware Principal address 10841 S Ridgeview Road, OLATHE, KS, 66061 Registered agent CORPORATION SERVICE COMPANY503 S PIERRE ST, PIERRE, SD, 57501-4522 Officers Not reported | ||||||
| — | TERRACON CONSULTANTS, INC. | 2018-12-19 | — | Patrick L. CourtneyOfficerDonald J. VranaOfficer | Active | |
| Alaska | TERRACON CONSULTANTS, INC. | 2003-12-30 | Corporation Service Company | TIMOTHY ANDERSONDirectorVanessa ZamboDirector3 more | Active | |
| Alabama | Terracon Consultants, Inc. | 2003-12-29 | CORPORATION SERVICE COMPANY INC | — | Active | |
| Arkansas | TERRACON CONSULTANTS, INC. | 2003-12-30 | CORPORATION SERVICE COMPANY | DAVID GABOURYOfficerPATRICK L. COURTNEYOfficer2 more | Active | |
| Arizona | TERRACON CONSULTANTS, INC. | 2004-07-24 | CORPORATION SERVICE COMPANY | M. Gayle PackerDirectorTracy GroverDirector7 more | Active | |
| California | TERRACON CONSULTANTS, INC. | 2003-12-30 | CSC - LAWYERS INCORPORATING SERVICE | Donald J. VranaOfficerPatrick L. CourtneyOfficer2 more | Active | |
| Colorado | TERRACON CONSULTANTS, INC. | 2004-01-27 | CORPORATION SERVICE COMPANY | — | Active | |
| Connecticut | TERRACON CONSULTANTS, INC. | 2008-01-24 | CORPORATION SERVICE COMPANY | Timothy W. AndersonDirectorDONALD J. VRANAOfficer7 more | Active | |
| District of Columbia | Terracon Consultants Inc. | 2003-12-04 | CORPORATION SERVICE COMPANY | Anderson, WilliamOfficerAnderson, Timothy WOfficer6 more | Active | |
| Delaware | TERRACON CONSULTANTS, INC. | 2003-12-04 | CORPORATION SERVICE COMPANY | — | Unknown | |
| Florida | TERRACON CONSULTANTS, INC. | 2003-12-31 | CORPORATION SERVICE COMPANY | Patrick L CourtneyOfficerTimothy W AndersonOfficer, Director14 more | Active | |
| Georgia | TERRACON CONSULTANTS, INC. | 2003-12-30 | Corporation Service Company | Patrick L. CourtneyOfficerDonald J. VranaOfficer1 more | Active | |
| Hawaii | TERRACON CONSULTANTS, INC. | 2006-05-19 | CORPORATION SERVICE COMPANY | ZAMBO, VANESSA DDirectorANDERSON,TIMOTHY WDirector6 more | Active | |
| Idaho | TERRACON CONSULTANTS, INC. | 2003-12-30 | CORPORATION SERVICE COMPANY | Donald J. VranaOfficerWilliam S. AndersonDirector6 more | Active | |
| Illinois | TERRACON CONSULTANTS, INC. | 2004-02-11 | ILLINOIS CORPORATION SERVICE COMPANY | — | Active | |
| Indiana | TERRACON CONSULTANTS, INC. | 2003-12-30 | CORPORATION SERVICE COMPANY | — | Active | |
| Kansas | TERRACON CONSULTANTS, INC. | 2004-01-16 | CORPORATION SERVICE COMPANY | — | Active | |
| Kentucky | TERRACON CONSULTANTS, INC. | 2004-01-14 | Corporation Service Company | Donald J. VranaOfficerDavid D. HarwoodDirector7 more | Active | |
| Louisiana | TERRACON CONSULTANTS, INC. | 2004-05-07 | CORPORATION SERVICE COMPANY | M. Gayle PackerDirector, OfficerDavid D. HarwoodDirector7 more | Active | |
| Massachusetts | TERRACON CONSULTANTS, INC. | 2009-01-06 | CORPORATION SERVICE COMPANY | TRACEY GROVERDirectorDONALD J VRANAOfficer7 more | Active | |
| Maryland | TERRACON CONSULTANTS, INC | 2009-09-16 | CSC-LAWYERS INCORPORATING SERVICE COMPANY | — | Active | |
| Maine | TERRACON CONSULTANTS, INC. | 2009-01-12 | CORPORATION SERVICE COMPANY | — | Active | |
| Michigan | TERRACON CONSULTANTS, INC. | 2004-01-15 | CSC-LAWYERS INCORPORATING SERVICE (COMPANY) | — | Active | |
| Minnesota | Terracon Consultants, Inc. | 2003-12-31 | Corporation Service Company | M. Gayle PackerOfficer | Active | |
| Missouri | TERRACON CONSULTANTS, INC. | 2004-01-28 | CSC-LAWYERS INCORPORATING SERVICE COMPANY | JEFFERY C ROBERTSDirectorVANESSA D ZAMBODirector6 more | Active | |
| Mississippi | Terracon Consultants, Inc. | 2004-01-22 | CORPORATION SERVICE COMPANY | Jeffrey C. RobertsDirectorRobert W. PavlicekDirector7 more | Active | |
| Montana | TERRACON CONSULTANTS, INC. | 2004-01-16 | CORPORATION SERVICE COMPANY | DONALD J VRANAOfficerPatrick L. CourtneyOfficer7 more | Active | |
| North Carolina | Terracon Consultants, Inc. | 2004-03-10 | CSC - Delaware | Courtney, Patrick LOfficerVrana, Donald JOfficer1 more | Active | |
| North Dakota | TERRACON CONSULTANTS, INC. | 2004-01-07 | CORPORATION SERVICE COMPANY | — | Active | |
| Nebraska | TERRACON CONSULTANTS, INC. | 2003-12-30 | CSC-LAWYERS INCORPORATING SERVICE COMPANY | MICHAEL E COVERTDirectorM. GAYLE PACKEROfficer, Director19 more | Active | |
| New Mexico | TERRACON CONSULTANTS, INC. | 2004-03-09 | CORPORATION SERVICE COMPANY | M.Gayle PackerOfficerTimothy W AndersonDirector14 more | Active | |
| Nevada | TERRACON CONSULTANTS, INC. | 2004-03-30 | CORPORATION SERVICE COMPANY* | M. GAYLE PACKEROfficer, DirectorDONALD J VRANAOfficer6 more | Active | |
| New York | TERRACON CONSULTANTS, INC. | 2004-11-05 | CORPORATION SERVICE COMPANY | M. GAYLE PACKEROfficer | Active | |
| Oklahoma | TERRACON CONSULTANTS, INC. | 2004-04-07 | CORPORATION SERVICE COMPANY | — | Active | |
| Rhode Island | Terracon Consultants, Inc. | 2009-03-23 | CORPORATION SERVICE COMPANY | JEFFREY C. ROBERTSDirectorPATRICK L. COURTNEYOfficer7 more | Active | |
| South Carolina | TERRACON CONSULTANTS, INC. | 2004-01-16 | CORPORATION SERVICE COMPANY | — | Active | |
| Texas | Terracon Consultants, Inc. | 2003-12-30 | Corporation Service Company d/b/a CSC-Lawyers Incorporating Service Company | M GAYLE PACKEROfficer, DirectorJASON A SANDERDirector9 more | Active | |
| Utah | TERRACON CONSULTANTS, INC. | 2003-12-29 | CORPORATION SERVICE COMPANY | M. GAYLE PACKEROfficer, DirectorWILLIAM S ANDERSONDirector8 more | Active | |
| Virginia | Terracon Consultants, Inc. | 2004-01-21 | CORPORATION SERVICE COMPANY | Donald J. VranaOfficerVanessa D ZamboOfficer6 more | Active | |
| Wisconsin | TERRACON CONSULTANTS, INC. | 2004-03-30 | CORPORATION SERVICE COMPANY | — | Active | |
| Wyoming | Terracon Consultants, Inc. | 2003-12-31 | Corporation Service Company | — | Active | |
Companies and people linked to TERRACON CONSULTANTS, 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 — 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 | Permit | Issued | Type | Location | Status | |
|---|---|---|---|---|---|---|
| Texas | 14212499173 | 2023-01-14 | — | INDUSTRIAL BLVD STE D | Unknown | |
| Nevada | BDIA22-01519 | 2022-04-05 | Inspection Agency Permit | — | Closed - Work Not Started | |
| Nevada | BDIA22-01496 | 2022-04-04 | Inspection Agency Permit | — | Closed - Approved | |
| Nevada | BDIA22-01488 | 2022-04-04 | Inspection Agency Permit | — | Closed | |
| Nevada | BDIA22-01421 | 2022-03-30 | Inspection Agency Permit | — | Closed | |
| Nevada | BDIA22-01420 | 2022-03-30 | Inspection Agency Permit | — | Closed | |
| Nevada | BDIA22-01398 | 2022-03-30 | Inspection Agency Permit | — | Issued | |
| Nevada | BDIA22-01423 | 2022-03-30 | Inspection Agency Permit | — | Closed | |
| Nevada | BDIA22-01354 | 2022-03-24 | Inspection Agency Permit | — | Closed | |
| Nevada | BDIA22-01335 | 2022-03-23 | Inspection Agency Permit | — | Closed | |
Showing the latest 100 of 310 records.
| State | License / ID | Type | Issued | Status | |
|---|---|---|---|---|---|
| Kansas | LSPRO-000445-2026 | Service Professional | 2026-07-09 | Issued | |
| South Carolina | 209081 | General Business License - BL - General Business License | 2026-04-30 | Issued | |
| South Carolina | 046643 | Business License (New) - Out of Town | 2026-04-08 | Issued | |
| Oregon | BIZ-000734-2025 | Business License | 2025-12-31 | License Issued | |
| Utah | — | — | 2025-10-01 | Issued | |
| California | OOA-005205 | Out of Area Contractor License | 2025-09-05 | Issued | |
| Illinois | 184004050-0002 | DESIGN FIRM | 2025-04-28 | ACTIVE | |
| New Mexico | COM-2020-359172 | Business License Commercial | 2025-03-27 | Archived Legacy - PLN | |
| New Mexico | BR-2024-051390 | Business License Commercial | 2025-03-27 | Converted Record | |
| California | OC-005431-2024 | Out of City | 2025-02-28 | Expired | |
Showing the latest 104 of 111 records.
| Case | Filed | Job title | Wage | Worksite | Status | |
|---|---|---|---|---|---|---|
| I-200-25252-296455 | 2025-09-09 | Project Engineer | $97,500/yr | Greensboro | Certified | |
| I-200-25252-296422 | 2025-09-09 | Project Engineer | $106,216/yr | San Antonio | Certified | |
| I-200-25247-287643 | 2025-09-04 | Staff Engineer | $90,000/yr | Dallas | Certified | |
| I-200-25238-267839 | 2025-08-26 | Senior Engineer | $128,600/yr | Dallas | Certified | |
| I-200-25237-264750 | 2025-08-25 | Project Engineer | $98,900/yr | Portland | Certified | |
| I-200-25237-264683 | 2025-08-25 | Senior Staff Engineer | $86,000/yr | Blue Bell | Certified | |
| I-200-25223-233941 | 2025-08-11 | Software Architect | $142,500/yr | Olathe | Certified | |
| I-200-25181-140126 | 2025-06-30 | Regional Services Specialist | $112,000/yr | San Antonio | Certified | |
| I-200-25181-140771 | 2025-06-30 | Field Engineer | $80,000/yr | Conroe | Certified | |
| I-200-21225-520997 | 2021-08-13 | 2095.Staff Engineer | $36/hr | Austin | Certified | |
Showing the latest 100 of 253 records.
| State | Workforce | Hiring sites | Enrolled | Industry | Status | |
|---|---|---|---|---|---|---|
| 45 states | 1,000 to 2,499 | 195 | 2/10/2014 | PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES (54) | Open | |
| 5 states | 5,000 to 9,999 | 6 | 1/23/2007 | CONSTRUCTION (23) | Open | |
| Kansas | 5,000 to 9,999 | 1 | 9/19/2025 | PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES (54) | Open | |
Employee-benefit plan filings by TERRACON CONSULTANTS, INC. 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) | ≈92 · plan year 2011 |
|---|---|
| Est. annual revenue (modeled) | $14.2M |
| Retirement plan assets | $3.8M |
| Benefit plans | 401(k) plan on file |
| Filing history | 12 plan years filed, 1999–2011 |
| Sponsor EIN | 87-0357749 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2011 | ≈92 | 83 | $3.8M | $14.2M | 401(k) | |
| 2010 | ≈90 | 81 | $5.6M | $12.7M | 401(k) | |
| 2009 | ≈86 | 77 | $5.8M | $12.7M | 401(k) | |
| 2007 | ≈79 | 78 (71 active) | $4.8M | $12.7M | 401(k) | |
| 2006 | ≈76 | 73 (68 active) | $5.4M | $13M | 401(k) | |
| 2005 | ≈73 | 66 (66 active) | $4.7M | $11.5M | 401(k) | |
| 2004 | ≈56 | 75 (50 active) | $3.9M | $10.4M | 401(k) | |
| 2003 | ≈78 | 71 (70 active) | $3.6M | $12.7M | 401(k) | |
| 2002 | ≈76 | 63 (68 active) | $3.5M | $12.4M | 401(k) | |
| 2001 | ≈60 | 53 (54 active) | $3.1M | $9.9M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| IHI ENVIRONMENTAL 401(K) PROFIT SHARING PLAN | — | — | — | |
| IHI ENVIRONMENTAL 401(K) PROFIT SHARING PLAN | — | — | — | |
Federal court records load when you reach this section.
Companies adjacent to TERRACON CONSULTANTS, INC. in the South Dakota Secretary of State register, in alphabetical order.
21 companies are registered at 10841 S Ridgeview Road, OLATHE — 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 2026-07-15. Document getpalm-companies/1292-4404-3166.