Forretningsforbindelser:

Åsland Pukkverk AS

Lundby og Rygg AS

Kaare Mortensen Oslo/Akershus AS
Oskar og Tormod Wike AS
Nordisk Fundametering AS
Arne Olav Lund AS
Brødrene Dokken AS
AK Granheim AS
Norsk Gjenvinning AS

PEAB Norge AS
Øst-Riv AS
Romerike Maskin AS
OBAS-Øst AS
Franzefoss Pukk AS
Ole M. Almeli AS
Kjeldaas AS