OUR TEAM

Challenging the humanitarian community to develop new and innovative ways of working.

GLOBAL TEAM. WORLD CLASS RESULTS.

GEG provides the highest quality services because we match skilled and experienced professionals to each project. In addition to our core staff, we bring members of our ‘Surge Network’ of humanitarian and business Subject Matter Experts with years of diverse global experience into our project teams. These experts bring evaluation, logistics & supply chain, strategic planning, response, disaster planning, disaster risk reduction, security, business, administration, finance, human resources, gender, media relations and language skills, as needed by our clients. To become part of our ‘Surge Network’, apply here →.

Core Team

Langdon Greenhalgh
Langdon GreenhalghManaging Director and Co-Founder
  • Humanitarian Operations Management
  • Operational and Organizational Strategy
  • Project Management
  • Monitoring, Evaluation & Learning
  • Debris Management
  • Disaster Risk Reduction
  • Supply Chain & Logistics
  • Innovation and Entrepreneurship
  • Training, Mentoring and Coaching
  • Risk Management
  • Financial Analysis
  • Human Resources

Langdon Greenhalgh has more than 17 years of humanitarian response and consulting experience working with a diverse group of governmental, international and non-governmental clients on humanitarian projects. He is a professional international emergency response manager who has served as team leader for the Red Cross and other organizations in a wide range of emergency response operations in the Americas, Africa, Asia and Europe. Previous to his work as a humanitarian consultant, Langdon served within the International Disaster Response Unit of the American Red Cross and was responsible for ensuring the delivery of high-impact emergency services globally. Prior to this Langdon was Executive Director of Horizon Institute for Policy Solutions, a Virginia based think-tank. Langdon completed his undergraduate work in Government and Foreign Affairs from the University of Virginia and received his Masters Degree from Harvard’s Kennedy School.

Iain Logan
Iain LoganDirector and Co-Founder
  • Disaster Response and Recovery Operations Coordination
  • Emergency Operations Surge Capacity Provision
  • Strategic Disaster Risk Reduction and Risk Management Consulting
  • Contingency and Continuity of Operations Design and Planning
  • Leadership and Team Training and Mentoring
  • Humanitarian Safety and Security
  • Operations and Project Monitoring and Evaluation
  • High level agency representation

Iain Logan has more than 25 years of experience as a senior disaster response manager and humanitarian consultant. His first exposure to a humanitarian action was in 1964 in the former Belgian Congo. In 1990 he was recruited into the International Red Cross through the Canadian Red Cross at the outbreak of the first Gulf War. An expert in international humanitarian assistance in complex, conflict and natural disasters, he served with the Red Cross in over 50 countries. He has held many high-level field and HQ positions in the International Federation of the Red Cross & Red Crescent Societies (IFRC), heading operations in major disasters and conflicts in Ethiopia, Somalia, Rwanda, Zaire, Southern Africa, Bougainville in Papua New Guinea and Lebanon; earthquakes in Iran, Haiti, Pakistan, India & Algeria, and most recently in Nepal; Hurricanes including Mitch, Ivan and Katrina and the Indian Ocean and PNG Tsunamis. He began his career with the IFRC as a Relief Administrator and served as Head of Delegation in many countries and as Operations Liaison at the IFRC UN delegation in New York. He completed his service as Head of Global Operations Coordination and Disaster Management Development and Special Projects. He has consulted and is a trainer in the above disciplines for the Red Cross Red Crescent Movement,the UN, government and for various INGOs. Raised and educated in East Africa, he is fluent in Swahili and also speaks French and Spanish; he holds a Diploma in Agriculture from the University of Edinburgh, School of Agriculture. He is a recipient of the prestigious Canadian Meritorious Service Medal (MSM) for actions in the 1994 Rwanda Conflict.

Aliisa Paivalainen
Aliisa PaivalainenDirector of Client Engagement
  • Project Management
  • Humanitarian Response Coordination and Management
  • Training and Capacity Building
  • Team Leadership
  • Disaster Preparedness and Risk Reduction
  • Quality Assurance
  • Partnership Development
  • Simulation Coordination

Aliisa Paivalainen has significant project management and business development experience in a variety of sectors and with diverse clients. Her previous work experience includes private firms, faith-based organizations, academic institutions, NGOs and the United Nations System. She has worked in the field as well as HQ, with a focus on project coordination and overall quality assurance. She has worked in Africa, Asia-Pacific, Europe and North America and is passionate about creating better systems to enhance emergency preparedness mechanisms for local, regional and international actors. At the United Nations in Geneva, she worked with the OCHA’s Surge Capacity section to help in the design, delivery and administration of training courses for surge personnel, both for OCHA staff and Stand-By Partners. Her previous experience also includes consulting with OCHA Emergency Preparedness section focused on improving OCHA’s internal preparedness structures and partnerships. She completed her undergraduate degree in Political Science from the University of Alberta and received her Master’s Degree from the University of Queensland in Peace and Conflict Resolution.

Jo Fox
Jo FoxDirector of Resourcing, Communications and Special Projects
  • Broad communications focus within international emergency relief and sustainable development. Specifically:
  • Systemic Change
  • Strategic Planning
  • Management
  • Team Leadership
  • Campaigning including Mobilisation
  • Policy Development and Advocacy
  • Communications and Media
  • Multi-stakeholder Processes
  • Cross sector partnerships
  • Community engagement

Jo Fox has almost 30 years’ experience in humanitarian emergency response and development, including campaigning, working within the Red Cross and Red Crescent Movement and International NGO’s Oxfam and Greenpeace, where her focus encompassed a broad spectrum of communications work spanning operational and organisational knowledge management, media and campaigning, including policy, advocacy, mobilisation and training increasingly at the global strategic level. In 1990 she was recruited as Desk Officer for the British Red Cross then became a delegate within the Red Cross Movement – Federation of Red Cross and Red Crescent Societies (IFRC) and the International Committee of the Red Cross (ICRC) – for 10 years working in over 18 countries in Africa with postings in Geneva, Eastern Europe and India. This included two years in Ethiopia at the end of the war as Information Delegate 91-93, two years as Regional Communication Delegate in East Africa including a year in Somalia in 1993 and as in situ spokesperson during the first months of the genocide in Rwanda 94, and 5 years as ICRC Regional Communications Delegate based in southern Africa covering 15 countries. From 2002-2006, as Trade Campaign Manager for Oxfam UK, then Mobilisation Manager, she was responsible for conceptualising and leading Oxfam International’s first global mobilisation, resulting in 18 million people in 55 countries mobilising to make trade fair at the World Trade Organisation. From 2006 as Head of Campaigns and Policy for Oxfam Ireland she introduced one programme into the organisation, focussing on economic justice and climate change. From 2014, as Head of Campaigns for Greenpeace New Zealand she was responsible for the GPNZ 3 year strategic plan around climate change and the fossil fuel agenda. Jo grew up in the UK and has a BA Hons MA in Archaeology and Anthropology from the University of Cambridge.

Kelly Johnson
Kelly JohnsonDirector of Finance and Administration
  • Business Administration
  • Financial Analysis
  • Human Resources & Surge Network
  • Contracting and Procurement

Kelly Johnson comes to Global Emergency Group with a strong background in management, accounting and personnel management. In addition, she has experience as a training facilitator and designer. In her spare time, she is very active with her family and children’s school. She holds an undergraduate degree in business administration from Berry College (Rome, Georgia) and an MBA from Georgia State. Kelly enjoys supporting the core staff of GEG in the critical work they perform.

Margaret Bacon
Margaret BaconAssociate, Client Engagement
  • Project Management
  • Business Development
  • Communications & Media Support
  • Humanitarian & Security Field Training Administration
  • Simulation Coordination
  • Humanitarian Response Coordination and Support

Margaret Bacon brings a variety of skills including project management, business development, communications and data analysis to the GEG team. Having previously interned for GEG as a projects assistant, Margaret joined Global Emergency Group full-time in 2016 as an associate. She works in business development, supports a variety of client projects, and provides administration and simulation coordination for GEG’s humanitarian and security trainings.  Additionally, she supports communications, media, and marketing for GEG. Margaret received her bachelor’s degree from Davidson College where she completed a major in French and Francophone Studies and a minor in Economics.

Drew Souders
Drew SoudersAssociate
  • Data Analysis
  • Business Development
  • Financial Analysis
  • Marketing Communication
  • Project Management
  • Systems Integration
  • Entrepreneurship

Drew Souders is an early-stage social entrepreneur with skills in financial analysis, business development and project management. Drew joined the GEG team as an associate in 2016, and is primarily responsible for consulting on special projects and supporting the firm’s business development efforts. Additionally, he uses his experience in the start up community to help develop key internal initiative for GEG. Drew received his BS from the McIntire School of Commerce at the University of Virginia, where he concentrated in IT, Management and Global Commerce.

Natalie Greenhalgh
Natalie GreenhalghAdministrator and Training Support
  • Humanitarian & Security Field Training Administration
  • Community Liaison & Curricular Support
  • Human Resources & Surge Network
  • Recruiter, Internship Program
  • Contracting
  • Communications & Media Support

Natalie is an educator with broad experience in curriculum development, action research, and cultural exchange programs. She has traveled to Haiti as a GEG photographer and videographer for an evaluation of Canadian Red Cross shelters. She currently provides administrative support to GEG humanitarian and security field trainings. Natalie holds a B.A. in English from Washington and Lee University and a Masters in Teaching from the University of Virginia.

Wangari Wanjau
Wangari WanjauAfrica Representative
  • Project Management in fragile and new states
  • Remote Management and Monitoring
  • Community Engagement and Mobilization
  • Policy Development, Analysis and Evaluation
  • Partnership Development and Management
  • Capacity Building of local staff.
  • Preparedness, Response, Reintegration, Rehabilitation and Reconstruction
  • Cash Programming
  • Food Distribution and Food Security, Camp Management, Public Health Promotion, Shelter, Protection
  • Field Office Management
  • Donor Relations
  • Working with marginalized communities.
  • Advocacy
  • Trainer of Trainers

Wangari Wanjau is an experienced programme manager in both the humanitarian and development sectors where her expertise ranges from assessments, strategic planning, programme design, implementation, evaluations and accountability. Wangari has worked with INGOs and the UN in fragile communities in South East Asia and countries in the Horn of Africa. In this capacity she has delivered projects on emergency preparedness, emergency response, reintegration and reconstruction in both conflict and man-made disaster affected communities including programmes in food security, livelihoods, shelter, hygiene promotion, camp management and capacity building of local partners She has strong experience in management of local partner and coordination with key stakeholders and is a trainer on a variety of humanitarian areas including SPHERE, LEGS, GEG, CMDRR and cash programming, Wangari has a BA in Development studies and is in the process of completing her Master’s in Public Policy and Management.

Aditya Katoch
Aditya KatochSouth Asia Representative
  • Supply Chain & Logistics Consulting
  • New Business Development
  • Strategic Relationship Management
  • Account & Project Management
  • Program Change Management
  • Leadership & Team Management

An experienced business management professional, Aditya Singh Katoch has 20 years of diversified experience in supply chain management consulting, business process outsourcing and business development with leading global companies such as Ariba, WNS, HCL and Sojitz in India, APAC, Europe and the USA. During his assignments in India and overseas, Aditya has worked on complex, high value international supply chain and outsourcing projects across industries with a specialization in e-procurement, e-commerce, business analytics and supplier management. With the panache for opening new Lines of Business, he has managed strategic relationships, developed marketing strategies and made marquee sales closures of Fortune 500 accounts across assignments. A keen golfer and an amateur photographer, Aditya looks forward to leveraging his deep domain knowledge for humanitarian consulting and carving new partnerships for GEG in India and South Asian. Aditya is a Graduate in Commerce from Delhi University and a Post Graduate in MBA from Institute of Management Technology (IMT), Ghaziabad.

GEG Surge Network Sector Leads

John Logan
John LoganSecurity
  • Collaborative and adaptable Leader
  • Broad experience overseeing global security activities
  • Security Compliance
  • Contingency Planning
  • Asset Protection
  • Planning and Organizing
  • Risk Analysis and Management
  • Team Building
  • Adaptability

A security executive with expertise in crisis management, security risk management and managing multinational teams, John spent 20 years as a commissioned officer in the US Navy. Highlights of his military career include assignment as the Defense Attaché and Chief of Security Assistance in Madagascar accredited to Madagascar, Seychelles, Comoros and Mauritius where he was the only military reporter in the South West Indian Ocean and was responsible for interception of 3.4 metric tons of weapons destined for the warlords in Somalia during UNOSOM II. As the Chief of Security Assistance he managed an aggregate budget of $2.5 million focusing on infrastructure, bio-diversity, and self-help programs which included rural road and clinic construction, aircraft repair, and purchase of oil containment equipment. During Desert Storm John was assigned as the Master Scheduler where he led the team that implemented the Naval Air logistical resupply plan in the Theater of Operations, supporting 200 ships of seven nations.

Retiring from the US Navy in 1995 John joined the United Nations High Commissioner for Refugees as a Field Staff Safety Advisor and was deployed to Goma, Zaire in the aftermath of the Great Lakes genocide in Rwanda. In this function he was responsible for the safety of all UN and NGO humanitarian personnel working in the Goma refugee camps. After evacuating 450 humanitarian personnel from 35 organizations during the invasion of the Rwandan military John was reassigned to Geneva, Switzerland where he served as a security advisor to UNHCR field offices and was the principal security trainer for UNHCR’s Emergency Response Teams.

In 2001 John joined the office of the UN Security Coordinator (later the Department of Safety and Security) in New York where he has served as a Desk Officer, Chief of Regional Desk, Chief of Compliance and most recently as the Chief of the Field Support Service where he was responsible for the training, stress management, information management and aviation risk management initiatives of the UN Common System. In this function John transitioned security training from school house courses to academically sound blended methodologies based on training needs assessments in so doing increased by 500% the number of courses, and staff members trained. He coordinated the UN system stress counsellors so that common methodologies and training standards are used and has developed training standards that are academically accredited in the US and Europe. He has also developed an algorithm to use commonly available data to determine the relative safety amongst commercial airlines.

Key Surge Network Members

Thierry Schweitzer
Thierry SchweitzerSupply Chain & Logistics
  • Logistics & Supply Chain
  • Operational Response
  • Disaster Preparedness and Response
  • Capacity Development & Training
  • Disaster Warehousing
  • Emergency Operations Centres

Thierry is a professional logistics and supply chain expert, part of the International Federation of Red Cross (IFRC) Field Assessment and Coordination Team (FACT), the British RC Emergency Response Unit (ERU) logistics and the British RC Household Economics Security (HES) surge team where he is a specialist in Emergency Market Mapping and Analysis (EMMA) and cash distribution. He has recently completed a Supply Chain Assessment for UNICEF in Somalia and has many years of country, regional and HQ logistics and supply chain management for several large humanitarian actors including working as an advisor to define country and regional logistic strategies. Thierry also reviewed the Certification in Humanitarian Logistics (CHL) for the Humanitarian Logistics Association (HLA)/Fritz Institute. This training won the European Supply Chain Excellence Award 2011. Most recently, he led the GEG capacity development, Emergency Operations and Warehousing development, training and mentoring program in Haiti that delivers US government funded Civil-Military capacity enhancing assistance to countries in the Americas.

Roberto Borlini
Roberto BorliniMonitoring & Evaluation
  • Monitoring & Evaluation
  • Resilience & Climate Change
  • Community Engagement
  • Development Impact
  • Organisational Analysis

Roberto Borlini is a development expert with extensive experience in the design, management and evaluation of projects. As a consultant, Roberto has worked for a variety of organizations, from INGOs to the United Nations, the European Union and regional organizations. Roberto has worked on a variety of topics, most recently the mid-term review of UN-OCHA’s results framework, the elaboration of Trócaire’s Humanitarian Project Lifecycle Handbook and the formulation of the Guidance Document on the indicators of the 2014-2024 Strategy of the Caribbean Disaster Emergency Management Agency.

Roberto is proficient in the use of software for statistical analysis, mobile data collection and project design. His main areas of expertise are food security and natural resources management, but he also has considerable experience in disaster preparedness and sustainable livelihoods. In 2005 Roberto won the Swiss Re Watershed Management Award. He holds an MA in Environment, Development and Policy from the University of Sussex.

Gert Venghaus
Gert VenghausMonitoring & Evaluation
  • Monitoring and Evaluation
  • Training and Coaching
  • Programme Management
  • Organisational Analysis
  • Stakeholder Engagement
  • Disaster Response & Preparedness
  • Capacity Building

Gert is a humanitarian expert practitioner with a strong foundation in the health sector and the disaster response and management cycle of humanitarian assistance and training. He has worked in Disaster Management since 1984 in East Africa, Middle East and mainly South Asia. Since 2001, he has consulted on humanitarian monitoring, review and evaluations epidemiological preparedness and business continuity, and has undertaken several evaluations of complex assistance programs for Syrian and Iraqi refugees in Lebanon, Syria and Jordan, capacity assessments of local project partners, and community resilience programs in East Africa, South Asia and the Middle East.

Gert has over 35 years of wide ranging experience at senior level in humanitarian operations and program management where he has gained wide and solid expertise in leadership, operational coordination, emergency management (including shelter, food aid, and health in emergencies), logistics, medical logistics, and fleet management. He has experience in disaster preparedness (conventional, community-based, pandemic), development, project planning, staff development, representation and providing quality operational feedback to donors including ECHO, USAID, DFID, SIDA and various Foreign Ministries. Much of his experience has been in Asia where he worked and managed humanitarian activities in Nepal and India from 1993 – 2000, mostly in floods, refugees and on earthquake response, preparedness and rehabilitation.

Mark Slezak
Mark SlezakProject Lead & Information Design
  • Humanitarian Response Coordination and Management
  • Strategic Assessment Design Humanitarian Policy
  • Project Management
  • Utilization Focused Strategic Evaluation
  • Senior Liaison Expertise
  • Information and Risk Management

Mark Slezak is a humanitarian response professional with extensive operations experience supported by information design and strategic evaluation expertise in conflict and natural disaster response environments. Mark has worked with a range of Non-Governmental Organizations, the International Organization for Migration (IOM), and the United Nations (UN) designing and managing humanitarian assistance operations in Kenya, Uganda, Ghana, Guinea, Ivory Coast, Liberia, Indonesia, Nepal, Yemen, Kyrgyzstan, Kazakhstan, Tajikistan and the Sudan/South Sudan.

Mark has experience in senior liaison roles, has led emergency and transitional programming, and has designed and managed evaluation information management systems. Mark holds a degree in International Relations from Tufts University and has conducted research in Development Studies at Makerere University in Uganda.

Tasneem Mowjee
Tasneem MowjeeMonitoring & Evaluation
  • Humanitarian Evaluations
  • Financing Mechanisms
  • Fragile and conflict-affected contexts
  • Donor Policy Development

Tasneem Mowjee has over 20 years of experience in humanitarian aid financing, evaluations and policy. She became involved in humanitarian assistance in 1993 through her work with WomenAid International, which was providing assistance to the former Yugoslavia. Tasneem specializes in financing mechanisms and has consulted for the United Nation’s Office for the Coordination of Humanitarian Affairs (OCHA). She has conducted country-level reviews of the value-added of the Central Emergency Response Fund (CERF), most recently in Sudan and Yemen, focusing on allocation processes and examining the internal processes of CERF-funded UN agencies. She has also evaluated OCHA-managed Common Humanitarian Funds and Emergency Response Funds. Tasneem has consulted for a number of donor agencies, including DFID, conducting an evaluation of its Humanitarian Innovation and Evidence Program, and evaluating the humanitarian strategies of Sida and Danida. Examining humanitarian-development linkages was an important part of the Sida and Danida evaluations and, in 2015, Tasneem undertook a study of humanitarian-development linkages in protracted crises. This was published by the Danish Ministry of Foreign Affairs under the title ‘Coherence in Conflict: Bringing humanitarian and development aid streams together’. Tasneem holds a PhD from the London School of Economics on DFID and ECHO funding for the humanitarian work of British NGOs.

“Throughout my time working with GEG I have found their consultants to be highly skilled and exceedingly capable at providing strategic relationship, fundraising and communications consulting services. Their deep experience within the humanitarian and private sectors added critical perspective to our business decision-making while adapting to the unique circumstances of the organization. Through their constant attention to client needs GEG has shown flexibility, willingness and ability to adapt to our most pressing needs while effectively staying on track to complete the original deliverables they were contracted to produce.”

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