Castalia Systems, LLC is a South Dakota LLC, registered on July 31, 2017. It is based at 526 Luzon Ave, Tampa, FL, 33606. The company has since been marked inactive on the South Dakota register and is registered under company number FL135530. Public records for the company include 1 SoS registration, 5 UCC liens, 5 federal contracts, 1 loan record and 14 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | Castalia Systems, LLC |
|---|---|
| Principal address | 526 Luzon AveTampa33606FLUnited States |
| Mailing address | 526 LUZON AVE, TAMPA, FL, 33606 |
| Registration state | South Dakota |
| Status | Inactive |
| Formed in | Florida (foreign registration) |
| Registered | 31 July 2017 (about 9 years ago) |
| Entity type | LLC |
| Standing | not compliant |
| Company number | FL135530 |
| EIN | 45-2978908 |
| Employees (modeled) | ≈117 employees2025 |
| Registered agent |
|---|
| CORPORATION SERVICE COMPANY |
| Source registry | South Dakota Secretary of State · updated 15 June 2026 |
|---|
| Public records | 1 SoS registration · 5 UCC liens on file |
|---|
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| Est. revenue (modeled) | $62.9M2025 |
|---|---|
| Federal contracts | $1.6M · 132 awards |
| SBA loans | $2M · approved amounts |
| Total obligated | $1.6M |
|---|---|
| Awards | 132 |
| Top agency | Department of Defense |
| Action date | Agency | Obligated | |
|---|---|---|---|
| 2026-07-03 | General Services Administration | $0 | |
| 2026-07-01 | General Services Administration | $0 | |
| 2026-07-01 | General Services Administration | $0 | |
| 2026-06-22 | General Services Administration | $0 | |
| 2026-06-17 | General Services Administration | $0 | |
| 2026-06-16 | General Services Administration | $0 | |
| 2026-06-10 | General Services Administration | $0 | |
| 2026-05-07 | General Services Administration | $0 | |
| 2026-05-07 | General Services Administration | $0 | |
| 2026-04-02 | General Services Administration | $0 | |
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| South DakotaTHIS | Castalia Systems, LLC | 2017-07-31 | CORPORATION SERVICE COMPANY | — | Inactive | |
Filing ID FL135530 Jurisdiction Foreign · LLCFormed in Florida Principal address 526 Luzon Ave, Tampa, FL, 33606 Registered agent CORPORATION SERVICE COMPANY503 S PIERRE ST, PIERRE, SD, 57501-4522 Officers Not reported | ||||||
| Alabama | Castalia Systems, LLC | 2018-03-15 | Northwest Registered Agent service I | — | Merged | |
| Colorado | Castalia Systems, LLC | 2017-05-01 | CORPORATION SERVICE COMPANY | — | Active | |
| Massachusetts | CASTALIA SYSTEMS LLC | 2022-04-13 | CORPORATION SERVICE COMPANY | ZACHARY MANNOfficer | Inactive | |
| Mississippi | Castalia Systems LLC | 2024-09-12 | CORPORATION SERVICE COMPANY | Lindsey DossMemberDoc BrittMember1 more | Active | |
| Ohio | CASTALIA SYSTEMS LLC | 2026-06-08 | CORPORATION SERVICE COMPANY | CASTALIA SYSTEMS LLCOfficer | Active | |
| Pennsylvania | Castalia Systems LLC | 2022-04-18 | — | Doc BrittDirectorZachary MannDirector1 more | Active | |
| Tennessee | CASTALIA SYSTEMS, LLC | 2024-04-23 | CORPORATION SERVICE COMPANY | — | Active | |
Companies and people linked to Castalia Systems, 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.
company person group former role
| Amount | Approved | Lender | Jobs | Status | |
|---|---|---|---|---|---|
| $2,000,000 | 01/19/2021 | Bank of Charles Town | 119 | Paid in Full | |
Employee-benefit plan filings by Castalia Systems, 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) | ≈117 · plan year 2025 |
|---|---|
| Est. annual revenue (modeled) | $62.9M |
| Retirement plan assets | $7M |
| Benefit plans | 401(k) plan on file |
| Filing history | 14 plan years filed, 2012–2025 |
| Sponsor EIN | 45-2978908 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2025 | ≈117 | 143 (105 active) | $7M | $62.9M | 401(k) | |
| 2024 | ≈109 | 141 (98 active) | $6.6M | $54.6M | 401(k) | |
| 2023 | ≈100 | 128 (90 active) | $5.6M | $49.4M | 401(k) | |
| 2022 | ≈100 | 138 (90 active) | $4.3M | $46.6M | 401(k) | |
| 2021 | ≈113 | 168 (102 active) | $4.6M | $48.4M | 401(k) | |
| 2020 | ≈134 | 174 (121 active) | $3.7M | $53.2M | 401(k) | |
| 2019 | ≈152 | 125 (137 active) | $2.6M | $56.7M | 401(k) | |
| 2018 | ≈47 | 57 (42 active) | $1.9M | $31.4M | 401(k) | |
| 2017 | ≈48 | 48 (43 active) | $1.6M | $26M | 401(k) | |
| 2016 | ≈31 | 42 (28 active) | $1M | $18.8M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| CASTALIA SYSTEMS 401(K) PLAN | — | — | — | |
| CASTALIA SYSTEMS 401K PLAN | — | — | — | |
| CASTALIA SYSTEMS 401K PLAN | — | — | — | |
| CASTALIA SYSTEMS 401(K) PLAN | — | — | — | |
| CASTALIA SYSTEMS 401K PLAN | — | — | — | |
| CASTALIA SYSTEMS 401(K) PLAN | — | — | — | |
| CASTALIA SYSTEMS 401(K) PLAN | — | — | — | |
| CASTALIA SYSTEMS 401(K) PLAN | — | — | — | |
| CASTALIA SYSTEMS 401(K) PLAN | — | — | — | |
| CASTALIA SYSTEMS 401(K) PLAN | — | — | — | |
Federal court records load when you reach this section.
Companies adjacent to Castalia Systems, LLC in the South Dakota Secretary of State register, in alphabetical order.
11 companies are registered at 526 Luzon Ave, Tampa — 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 2026-06-08. Document getpalm-companies/3404-7140-3266.