MARU AS
| Address | Järvevana tee 5, 10112 Tallinn, Estonia |
| Phone | +372 650 8800 |
| Fax | +372 650 8801 |
| Registry Code | 10037062 |
| VAT No | EE100271878 |
| info@maru.ee |
MARU EHITUS AS
| Address | Järvevana tee 5, 10112 Tallinn, Estonia |
| Phone | +372 657 5850 |
| Fax | +372 657 5851 |
| Registry Code | 10714568 |
| VAT No | EE100659856 |
| ehitus@maru.ee |
MARU METALL AS (office)
| Address | Järvevana tee 5, 10112 Tallinn, Estonia |
| Phone | +372 650 8820 |
| Fax | +372 650 8821 |
| Registry Code | 10723834 |
| VAT No | EE100671779 |
| metall@maru.ee |
MARU METALL AS (production)
| Address | Kesk str 10, Ardu, Kose parish, 75001 Harjumaa, Estonia |
| Phone | +372 621 7470 |
| Fax | +372 621 7471 |
| Registry Code | 10723834 |
| VAT No | EE100671779 |
| metall@maru.ee |
MARU THM OÜ
| Address | Järvevana tee 5, 10112 Tallinn, Estonia |
| Phone | +372 650 8840 |
| Fax | +372 650 8849 |
| Registry Code | 10377059 |
| VAT No | EE100346282 |
| thm@maru.ee |
MARU BETOONITÖÖD OÜ
| Address | Järvevana tee 5, 10112 Tallinn, Estonia |
| Phone | +372 657 5971 |
| Fax | +372 657 5851 |
| Registry Code | 12051926 |
| VAT No | EE101426648 |
| betoon@maru.ee |
MDSC SYSTEMS OÜ
| Address | Kukermiidi tn 8, 11216 Tallinn |
| Phone | +372 659 2704 |
| Fax | +372 650 8821 |
| Registry Code | 12765601 |
| VAT No | EE101761497 |
| mdsc@maru.ee |