Our People

Details of our team are shown below

Peter Grose

Peter Grose

Managing Director

PhD, BE (Mech), Grad Dip Mgmt, Grad Cert TQM

Founded Tranen in 1992. Now a restoration ecologist, previously worked in mining project and construction management.

0418 914 971


Damian Grose

Damian Grose

General Manager

BE (Env)

Director at Tranen since 1994, full time since 2002. Over 20 years revegetation experience in Australia and overseas. RIAWA and ECA committee member.

0402 844 111


James Lawton

James Lawton

Operations Director

Dip Cons & Land Mgmt

Joined Tranen in 2006. Over 15 years in revegetation industry. Experienced in all aspects of revegetation project management and resourcing.

0401 186 894


Roy Wittkuhn

Roy Wittkuhn

Senior Project Manager

PhD, BSc (Nat Resc Mgmt)

With Tranen since 2012, over 20 years in industry. Extensive experience in environmental consulting and research, especially in southwest ecosystems.

0400 101 070


Bart Boschker

Bart Boschker

Seed Manager

Cert IV Cons & Land Mgmt

Joined Tranen in 2012. Strong knowledge of local seed industry and field project implementation. Previously ran his own landscaping business.

0478 062 711


Hannah Walker

Hannah Walker

Team Leader

BSc Cons Wildlife Biol & Env Sci

Joined Tranen in 2019. Started as a seed collector and soon promoted to a Team Leader role.

0410 063 383


Mathew Blunt

Matthew Blunt

Southwest Director

BSc Env Restoration

Joined Tranen in 2006. 12 years revegetation and seed collection experience, with strong local knowledge of southwest region.

0400 165 729


AJJ 150 x 150

Alex Johnston


BSc Env Biol - Restoration

Part of the Tranen team since 2017. Nine years in rehabilitation around Perth. Expert in foreshore erosion control and restoration.

0411 089 044



Jarrad Sherborne


BSc (Hons) (Land Water Mgmt), BSc (Env Biol), BSocSc (Geog), Grad Dip Ed

Joined the Tranen team in 2019. 12 years experience in environmental management and supervision for mining, oil and gas (onshore) and environmental consultancies.

0415 981 360


Non-staff employees: We retain a small group of permanent casual employees, who have worked seasonally with us over the years and have gained appropriate field experience and technical skill levels. We supplement this on an as-required basis with additional casual employees, who undergo intensive training, and work under close supervision.

Contractors and consultants: Tranen has developed excellent long-term working relationships with a number of trusted contractors and consultants for earthworks, weed control, surface preparation, fencing, botanical, and other specialist services.