Thomas W. Shreve J.D. has over 30 years’ experience as a business executive, investment banker, lawyer and consultant. Since 1991 he has lived in Indonesia, where he has managed many ground-breaking transactions, held positions of responsibility in a broad range of industries, and achieved a deep understanding of emerging markets and cross-cultural issues.

Mr. Shreve’s transactional experience includes managing the acquisition of F.C. Internazionale (Milan), the sale of Bank Niaga by the Indonesian Government, and numerous international and domestic initial public offerings and bond issues. His main areas of technical expertise are mergers and acquisitions, project financing and structuring, arrangement of securities issues and commercial loans, and general contract negotiation and mediation.


Bret Mattes is an earth scientist and economist, trained in Australia, Canada and the US, with over 30 years of experience in the global energy and resources sector. He was CEO of Star Energy, an Indonesian oil & gas and geothermal energy producer that operates the 230MW Wayang Windu geothermal project in West Java for 7 years, and has worked on numerous other renewable energy and petroleum projects in Indonesia and throughout the region.

Bret is an accomplished project manager and dealmaker who brings a wealth of Asia-Pacific energy expertise to Numada, having held high level executive positions with several major resource companies. He is currently a Senior Advisor on power generation at PT.Pertamina (Persero). He has been Vice President at BHP Billiton, a Director of North West Shelf Gas Pty Ltd, Vice President at Australian LNG Pty Ltd, and an Exploration Manager at Shell International, based in The Hague. He is the Chairman of the Association of Low Carbon Businesses in Indonesia (ALBI), and has held more than 50 executive and non-executive directorships in business, health, energy, SOEs and the arts in Australia and the Asia Pacific.


Luke Rowe is responsible for real estate project development, marketing and management, and for acquisitions and disposals in the property sector.

He brings to the role his experience of more than 20 years in the real estate industry including as a Director at JLL, Procon Indah, and Duta Anggada Group. Luke has had the benefit of seeing both sides of the real estate business, real estate agency services and property development. He has been involved in numerous projects involving commercial office leasing and residential project marketing.

Luke provided high-level consulting to BPPN, the Indonesian Bank Restructuring Agency, and was responsible for the creation of their asset management monitoring system which was used to oversee the largest portfolio of property ever handled by a single body in Indonesia.


Numada has assembled an outstanding group of experts who are available to participate in Numada assignments. The experts included below are classified by subject matter expertise, and listed alphabetically within each category. Each expert is shown in only one category, although many have skills applicable across a range of sectors and specialties. Numada also supplement its full time staff with qualified junior personnel who are available on a project basis.


Andrew Campbell - Real Estate & Information Technology

Sales consultant at Harcourts Purba in Bali with expertise in video production, photography and IT, business automations, works with Numada on project development assignments. Webmaster of this website.

Frank Findlow - Supply Chain & Logistics

A supply chain & logistics expert with extensive experience in the food, petrochemical, mining and logistics supply chain industries, having held operations director and country manager positions across South East Asia. Proprietor of Triple EFF Consulting in Indonesia.

Eka Frihatiny - Real Estate & Sustainability

An architect with long experience at JLL in project marketing and tenant representation. A full time associate at Numada.

Ian Sibson - Building Materials & Manufacturing

An experienced senior executive in building materials and manufacturing operations in UK, Asia and South Africa. Expert in ISO9001 accreditation, LEAN manufacturing initiatives and culture and change management.


Jeroen Iedema - Digital Marketing & Fintech

Digital economy marketing & technology officer with experience in mobile financial services, payment processing and security management.

Erik Salmi - Healthtech & Finance

Accountant and finance analyst with experience in a range of industries, recently focusing on healthtech.

Vijay Sarashetti - Advanced Digital Technology

Highly experienced digital systems architect; former global head of Information Technology for Deutsche Bank. Expert on blockchain, artificial intelligence, data analytics and virtual reality. Currently Director of Starworks, a Bali-based leader in blockchain technology in the tourism industry.


Tom Heischman - Management & Strategy

Deep experience in project management, transformation leadership and strategic consulting in Indonesia, the Middle East, US, UK and other Asian countries. Proprieter of Tom Heischman Advisory.

Cynthia Jaafar - Finance & Accounting

An experienced corporate accounting and tax manager now serving as Numada’s finance manager.

Perry Nagle - Legal Consulting

Former general counsel for large companies; previously in private practice in New York and Jakarta. Recent experience in forestry management. Marathon runner.


Prijo Hutomo - HSE Advisor & Manager

An acknowledged leader in HSE management; former VP HSE for Star Energy & Barito Group; Indonesian member of the Global Methane Initiative.

Mark Potter - HSE Advisor & Manager

Experienced HSE professional who recently completed two power plant construction projects for Japanese multinationals, each involving thousands of staff.


Chris Bennett - Forestry Management

Specialist in forestry and agroforestry management and governance with experience in Indonesia, other Asian countries, Africa and Central America; currently under contract to Global Green Growth Initiative (GGGI). Proponent of “participatory zonation” approach to conservation and community outreach.

Dan Bowman - Forestry & Stakeholder Management

Former chief legal officer of Freeport Indonesia with responsibility for government relations and community outreach; GIS mapping & carbon credit advisory experience.

Rini Indyastuti - Biodiversity & Database Management

Biology lecturer, Duta Wacana Christian University; author, Biodiversity of Avivauna Lembah Kebar Papua.

Raja Pasaribu - Aquaculture

The most experienced aquaculture business executive in Indonesia; while in charge for Fega Marikultura, established a vertically integrated operation with hatchery, processing plant and barramundi fish farm.

Shankar Sivaprakasam - Geographic Information Systems (GIS)

Proprietor of Eartheye Space, a leading practitioner of space data analytics based on satellite reconnaissance of ecosystems.

Sugiarto - Environmental & Social Licensing

Professor at Bogor Agricultural Institute (IPB).

Robert Tanjung - Field Officer

Experienced field officer and representative of North Kalimantan Forestry Department.

Cherryta Yunia - Sustainability Management

Former senior project manager and director in the Ministry of Environment & Forestry.


Niclas Biornstad - Oil & Gas

Long experience in reservoir and field management in Europe, the US, Indonesia and Brazil; deep knowledge of Indonesian oil & gas field operations.

David Braithwaite - Oil & Gas and Renewable Energy

Leading oil & gas consultant and proprietor of Q Energy South East Asia

Amir Harahap - Oil & Gas

Former Pertamina executive responsible for oil & gas process design, procurement, operations, cost management and compliance

Robert Lemmey - Oil & Gas

Senior operations executive at Halliburton for over 30 years; experience in production well management, reservoir behavior, facilities management and safety.

Benoit Prim - Renewable Energy

An engineer with experience in building large scale renewable power projects, he founded Inecosolar, a solar PV turnkey contractor, and is technical director at SL Engineers.

Bill Sinclair - Consulting Engineering

Proprietor of Consultex engineering & project management consulting company; formerly SMEC & SNC-Lavalin Jakarta-based senior management.

Bradford Sincock - Oil & Gas

One of Indonesia’s most experienced petroleum and reservoir engineers, having moved from the US in 1987; a leading expert and trainer in petroleum industry software.

Maroth Toeante - Oil & Gas

Finance professional with experience in risk management, contracts and compliance; recent oil & gas experience as director of project development company Ekamaro Sakti.

Rod Williams - Energy Business Development

An experienced Asia business executive in the energy sector. Former country manager for Rolls-Royce in Indonesia and India, with geothermal project experience in Indonesia and elsewhere.

Westana Wiraatmadja - Energy Business Development

Long experience representing Solar Turbines (a Caterpillar Company) in Indonesia on national strategic projects and power plants; pioneer in the CNG business ; involved in oil & gas, LNG and renewable energy projects. President Commissioner of Numada.

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