Type
New Zealand marine contractor and dredging-fleet operator
New Zealand marine contractor and dredging-fleet operator
Johnson Bros Limited
Johnson Bros is a New Zealand-owned specialist marine contractor working in dredging, marine construction, pile driving, towing, salvage, pontoons and floating structures.
Active regions
Asia Pacific, New Zealand, Northland and regional ports
Marine works roles
Shallow-water dredging contractor, Marine construction and pile-driving contractor, Multipurpose barge and tug operator, Hydrographic pre-dredge and post-dredge survey interface, Dredged-material handling and consent-monitoring contractor, Towing, salvage and emergency marine-response provider, Private co-funder for the planned regional-port dredging barge, Future vessel procurement and operating-interface counterparty
Role in marine infrastructure
Johnson Bros is a New Zealand-owned specialist marine contractor working in dredging, marine construction, pile driving, towing, salvage, pontoons and floating structures. Its existing fleet includes the Mahikuri multipurpose barge, tugs and smaller transport and work barges. The company is the private co-funder identified for New Zealand's planned regional-port crane dredger hopper barge; that funding role does not establish a designer, shipyard, executed build contract or completed vessel.
Sources used 6
- Johnson Bros marine contracting overview Johnson Bros Limited, Current website reviewed 23 July 2026
- Johnson Bros fleet Johnson Bros Limited, Current fleet page reviewed 23 July 2026
- Mahikuri multipurpose barge data sheet Johnson Bros Limited, Current data sheet reviewed 23 July 2026
- Opua Boatyard jetty, pontoon and 7,000 m3 dredging project Johnson Bros Limited, Project completed February 2024; reviewed 23 July 2026
- Caulerpa suction-dredging project Johnson Bros Limited, Current project page reviewed 23 July 2026
- New equipment boosts ports' emergency access New Zealand Government, 10 March 2026
Source collections