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John Costas
Active West Palm Beach, FL — President for Keystone Construction Company, Inc.
John Costas Overview
John Costas has been associated with twenty-one companies, according to public records. The companies were formed over a twenty-two year period with the most recent being incorporated nine years ago in May of 2017. Nine of the companies are still active while the remaining twelve are now listed as inactive.
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Companies for John Costas
Showing 8 records out of 21
Connections for John Costas
A connection is made when two people are officers, directors, or otherwise associated with the same company. John has six known connections and has the most companies in common with Robert Guarini.
10
Robert Guarini has the following companies in common with John Costas
| Name | Status | Incorporated | Key People | Role |
|---|---|---|---|---|
| N-------------------------------C |
Inactive
|
2017 |
4
|
Manager
|
| N------------------------------------C |
Active
|
2017 |
3
|
Member
|
| N----------------------------------C |
Active
|
2009 |
2
|
Member
|
| W--------------------------. |
Active
|
2004 |
2
|
President
|
| S------------------------. |
Active
|
2002 |
2
|
President
|
| L--------------------------. |
Active
|
2005 |
2
|
President
|
| G-------------------------. |
Active
|
2004 |
2
|
President
|
| H---------------------. |
Active
|
1999 |
3
|
President
|
| A------------------------------. |
Inactive
|
2001 |
2
|
Vice President
|
| W---------------------------. |
Inactive
|
2005 |
2
|
President
|
Showing 8 records out of 10
4
Patrick Guarini has the following companies in common with John Costas
| Name | Status | Incorporated | Key People | Role |
|---|---|---|---|---|
| H---------------------. |
Inactive
|
1999 |
3
|
Director
|
| B--------------------. |
Inactive
|
1995 |
3
|
Director
|
| W-------------------------. |
Inactive
|
2000 |
3
|
Director
|
| D-------------------------. |
Inactive
|
2000 |
3
|
Director
|
3
David Simon has the following companies in common with John Costas
| Name | Status | Incorporated | Key People | Role |
|---|---|---|---|---|
| B--------------------. |
Inactive
|
1995 |
3
|
Director
|
| W-------------------------. |
Inactive
|
2000 |
3
|
Director
|
| D-------------------------. |
Inactive
|
2000 |
3
|
Director
|
1
Guarini Robert has the following companies in common with John Costas
| Name | Status | Incorporated | Key People | Role |
|---|---|---|---|---|
| N-------------------------------C |
Active
|
2017 |
4
|
Member
|
1
Irene G. Costas has the following companies in common with John Costas
| Name | Status | Incorporated | Key People | Role |
|---|---|---|---|---|
| K---------------------------------. |
Inactive
|
1999 |
2
|
Vice President
|
1
Costas John has the following companies in common with John Costas
| Name | Status | Incorporated | Key People | Role |
|---|---|---|---|---|
| N-------------------------------C |
Inactive
|
2017 |
4
|
Manager
|
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Source
Florida Department of State
Data last refreshed on Monday, April 6, 2026
Data last refreshed on Monday, April 6, 2026
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