Active
Overview
- Legal name
- TSONTOS, MICHAEL M., S.A.
- Registered location
- CHANIA, GRC
- Website
- Company website ↗
- Primary NAICS
- 236220 — Commercial and Institutional Building Construction
- Latest award activity
- Mar 31, 2026
Read company summary
TSONTOS, MICHAEL M., S.A. is associated with UEI K6MQCH7JB7L8 and CAGE G1851 in public federal records. AcornBids currently links 17 prime awards totaling $18.7M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Defense. Its recorded federal awards include work classified as Commercial and Institutional Building Construction. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 236220 (Commercial and Institutional Building Construction). Its public SAM.gov registration lists CHANIA, GRC.
At a glance
Lifetime prime obligations$18.7M
Prime awards17
Awards with future end dates6
Top-agency concentration
Not available
Why this customer concentration
Detailed agency totals are not available in this stored profile.
Largest positive coded-agency total ÷ all positive coded-agency totals × 100
Missing data is shown as unavailable.
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 27, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- TSONTOS, MICHAEL M., S.A.
- UEI
- K6MQCH7JB7L8
- CAGE
- G1851
- Registered address
- 1 EFEDRON POLEMISTON, CHANIA, 73135, GRC
- Registration status
- Active
- Primary NAICS
- 236220 — Commercial and Institutional Building Construction
- SAM activation
- Sep 19, 2025
- Initial registration
- May 9, 2008
- Entity start
- Jun 10, 1996
- SAM updated
- Sep 19, 2025
- Registration expires
- Sep 19, 2026
- Fiscal year end
- Dec 31
- Place of incorporation
- GRC
Federal award analysis
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| N3319126F0086RENOVATE YK-9 ORDNANCE TUNNEL AND PROVIDE A CONCRETE APRON TO SUPPORT THE RECEIPT, STORAGE, AND ISSUANCE OF ORDNANCE, IAW THE ENCLOSED CONFORMED COPY OF THE SOW, TSONTOS FPR… | Department of Defense | $4.4M | Mar 31, 2026 | Jul 31, 2028 |
| N3319126F0067PROVISION OF TWENTY (20) EXPEDITIONARY BUNKERS AT VARIOUS LOCATIONS AT NSA SOUDA BAY AND MARATHI K9 AND K14 PIER. OPERATION EPIC FURY. | Department of Defense | $2.8M | Mar 13, 2026 | Mar 28, 2026 |
| N3319121D0004JOB ORDER CONTRACT (JOC), SOUDA BAY AOR AWARD OF BASE PERIOD | Department of Defense | $40.0M | Oct 7, 2021 | Not available |
| N3319124F4213X085 CONSTRUCTION CONTRACT FOR CONSTRUCTION SERVICES FOR THE P676 | Department of Defense | $6.6M | Aug 8, 2024 | Apr 28, 2027 |
| N3319126F0019THIS IS A DESIGN/BUILD EFFORT THAT CLEANS, CALIBRATES, REPAIRS, REPLACES OR INSTALLS AS NEW FUEL STORAGE TANK RELATED SYSTEMS THAT ARE NOT COMPLIANT AT VARIOUS FACILITIES… | Department of Defense | $412.2K | Dec 30, 2025 | Sep 30, 2026 |
| N3319125F6205B50 - REPLACE EXTERIOR DOUBLE SLIDING DOOR IAW THE RFP ISSUED ON 2 SEPTEMBER 2025, TSONTOS PROPOSAL DATED 9 SEPTEMBER 2025, AND THE TERMS AND CONDITIONS OF THE BASIC IDIQ. | Department of Defense | $52.2K | Sep 19, 2025 | Oct 15, 2026 |
| N3319125F6208PROVIDE A NEW BASE-WIDE RADIO TYPE FIRE REPORTING SYSTEM, IAW THE RFP ISSUED ON 14 AUGUST 2025, INCLUDING PPIS 01 TROUGH 10, TSONTOS PROPOSAL, DATED 12 SEPTEMBER 2025, AND THE… | Department of Defense | $1.7M | Sep 19, 2025 | Sep 25, 2027 |
| N3319125F6200INDEFINITE DELIVERY INDEFINITE QUANTITY (IDIQ) MULTIPLE AWARD CONSTRUCTION CONTRACT (MACC) SOUDA BAY, GREECE (MINIMUM GUARANTEE) | Department of Defense | $5.0K | Sep 18, 2025 | Sep 16, 2026 |
| N3319125D6006INDEFINITE DELIVERY INDEFINITE QUANTITY (IDIQ) MULTIPLE AWARD CONSTRUCTION CONTRACT (MACC) SOUDA BAY, GREECE INCLUDING OTHER LOCATIONS IN GREECE. | Department of Defense | $75.0M | Sep 17, 2025 | Not available |
| N3319125F6162STORM WATER REPAIRS, VARIOUS LOCATIONS NSA SOUDA BAY, MARATHI K14 PIER | Department of Defense | $474.5K | Sep 8, 2025 | Nov 20, 2026 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Sep 19, 2025 |
| Source loaded | Sep 26, 2026 |
| Initial registration | May 9, 2008 |
| Entity start | Jun 10, 1996 |
| Industry | Reported size status |
|---|---|
| 236220 — Commercial and Institutional Building Construction | Not reported |
| 237310 — Highway, Street, and Bridge Construction | Not reported |
| 238130 — Framing Contractors | Not reported |
| 238210 — Electrical Contractors and Other Wiring Installation Contractors | Not reported |
| 238390 — Other Building Finishing Contractors | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| MICHAEL TSONTOS | Government business | Contact method not published | SAM registration | Not available |
| MANOUSOS TSONTOS | Electronic business | Contact method not published | SAM registration | Not available |
Registered industries
- 236220 — Commercial and Institutional Building Construction
- 237310 — Highway, Street, and Bridge Construction
- 238130 — Framing Contractors
- 238210 — Electrical Contractors and Other Wiring Installation Contractors
- 238390 — Other Building Finishing Contractors
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
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About TSONTOS, MICHAEL M., S.A.
What products and services appear in its federal awards?
Recorded award industries: 236220 — Commercial and Institutional Building Construction.
Recorded products and services: Z2AA — REPAIR OR ALTERATION OF OFFICE BUILDINGS; Z2LC — REPAIR OR ALTERATION OF TUNNELS AND SUBSURFACE STRUCTURES; Y1NZ — CONSTRUCTION OF OTHER UTILITIES.
Examples from recent award records:
- RENOVATE YK-9 ORDNANCE TUNNEL AND PROVIDE A CONCRETE APRON TO SUPPORT THE RECEIPT, STORAGE, AND ISSUANCE OF ORDNANCE, IAW THE ENCLOSED CONFORMED COPY OF THE SOW, TSONTOS FPR…
- PROVISION OF TWENTY (20) EXPEDITIONARY BUNKERS AT VARIOUS LOCATIONS AT NSA SOUDA BAY AND MARATHI K9 AND K14 PIER. OPERATION EPIC FURY.
These records describe federal award work, not every company capability. Review the award evidence.
Where is the company registered?
1 EFEDRON POLEMISTON, CHANIA 73135, GRC
Registered location from SAM.gov; award performance locations may differ.
What is its primary registered industry?
236220 — Commercial and Institutional Building Construction.
Primary SAM.gov NAICS classification.
Which federal agencies are represented in its awards?
Department of Defense.
Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
No official subaward rows are loaded, so Acorn does not claim known teaming relationships.
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