Ing.-Grad. Fritz Kramer
Ing.-Grad. Heinrich Gütersloh
| 1909 | Fritz Kramer, born in Berlin, attending „Bauschule” in Berlin |
| 1923 | Heinrich Gütersloh, born in Buxtehude, attending „Bauschule“ in Berlin |
| 1946 | Fritz Kramer and Heinrich Gütersloh join the engineering company of Hermann Deimling. |
| 1946 | Beginning of the activities in building-inspections |
| Till 1953 | Authorised Officers at Hermann Deimling |
| 1953 | Beginning of the partnership “Kramer + Gütersloh“ |
| 1972 | Retirement of Fritz Kramer |
| 1985 | Heinrich Gütersloh, died in Hamburg |