We are a leading provider of planning, monitoring, evaluation, research and learning services. Through these services we help our clients to define and measure their results and use evidence to improve program effectiveness.

Click here to download Social Impact’s brochure of global development services.

Haga clic aquí para leer sobre nosotros en español.


Rolf Sartorius Founder & Board Chair
Pat Hanscom Founder


Shiro Gnanaselvam Chief Executive Officer
Nana Frimpong Chief Operating Officer
Danielle de García Vice President, Strategy, Performance, and Learning
Danielle Ulrich Vice President, Program Management Unit
Eskedar Brantley Vice President, People and Culture
Greg Koldys, PhD Vice President, Business Development
Mateusz Pucilowski Vice President, Evaluation, Research, and Analytics
Brian Math Senior Director, Finance, Contracts, and Pricing


Rachel Santos Director, Domestic Consulting Services
Laura Raymond Program Director, Program Management Unit
Erin Cross Director, Talent Acquisition
Mike Duthie Senior Advisor, Evaluation, Research and Analytics
Jennifer L. Mandel, PhD Program Director, Strategy, Performance, and Learning
Luis A. Camacho, PhD Senior Technical Director, Evaluation, Research, and Analytics
Salman Jaffer, PhD Senior Technical Director, Strategy, Performance, & Learning


Social Impact has worked in more than 120 countries in every region of the world and currently has a physical presence in ten countries.

Open a printable version of this map here.


Working with international and local partners, we advance the development effectiveness of diverse clients, such as:

US Agency for International Development

Millennium Challenge Corporation

US Department of State

United States Department of Agriculture

General Services Administration

UK Aid – Department for International Development (DFID)

The MasterCard Foundation

Bill & Melinda Gates Foundation

The World Bank


Discovery Learning Alliance

African Development Bank

The Carter Center



Crown Agents USA


FHI 360

IDS International

International Fund for Agricultural Development

MacArthur Foundation

The Manoff Group

Mott Macdonald


Relief International

RTI International


Department of Labor

City of Portland

Department of Justice


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We are proactive, pragmatic and seek out diverse perspectives to advance program effectiveness. We take pride in creating participatory processes and useful products that deliver high quality results.

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We are honest, ethical, transparent and reliable in our work and with each other. We welcome difficult conversations to advance equity-focused, evidence-based decision making, and ensure accountability.

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We value and empower all staff and respect the dynamism within and across our teams and country offices. We encourage curiosity, partnership and reflection to learn from each other and our work, challenge ourselves and continuously improve.

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We celebrate both our individuality and collective strengths and look for ways to connect within and across teams, time zones, and projects. We seek remote and in-person spaces to enhance trust and teambuilding to create a sense of community.


CreedInAction.orgSocial Impact (SI) is committed to building a people-centered organization that is focused on cultivating a diverse, equitable, and inclusive culture that prioritizes the individual contributions and belonging of all. We believe that such a culture will make us better and more effective in achieving our mission to advance development effectiveness. Our Diversity, Equity, Inclusion & Belonging (DEI&B) policy, along with our company-wide DEI&B strategic objectives, serve to reinforce the commitment, goals, and guidance that will enhance and support DEI&B at Social Impact.

Social Impact’s main goals are as follows:

  • Diversity: Identify, Attract, Engage and Retain diverse talent
  • Equity: Ensure transparency and equitable treatment of all in our people policies and communication practices
  • Inclusion: Establish employee resource groups, create professional development practices, and utilize HR metric data to inform inclusive change and progress
  • Belonging: Enable an environment where our collective diversity is valued and all SI staff feel welcome and accepted as they are

SI has always strived to go beyond what is expected and forge a new path in the international development sector, and our commitment encapsulates our overall goal to promote and prioritize DEI&B both in our organization as well as in our sector. In 2021 SI led an initiative to develop the first ever benchmarking of DEI in the international development and humanitarian assistance sector. BRIDGE (Benchmarking Race Inclusion and Diversity in Global Engagement) was a landmark study that documented the diversity gaps within our sector and has been widely used at the organizational and sectoral level to drive change. SI also became a founding member of the Coalition for Racial & Ethnic Equity in Development (CREED), which is a collective of U.S.-based international development and humanitarian assistance organizations committed to building racial and ethnic equity (REE). We have made the pledge to advance racial and ethnic diversity, equity, inclusion, and belonging within our own organizations’ policies, systems, and culture in keeping with attainable and measurable goals and work to instill REE in international development.

Read the full SI DEI&B Policy click here.

Read the results from the BRIDGE 1.0 study click here. For the 2023 BRIDGE 2.0 results click here.

For questions regarding Social Impact’s DEI&B policy, please contact the VP People & Culture, Eskedar Brantley at ebrantley@socialimpact.com and/or the Chief Compliance & Ethics Officer, Oksana Zolotova at ozolotova@socialimpact.com.

For questions regarding Social Impact’s DEI&B Council and/or Employee Resource Groups, please contact DEIcouncil@socialimpact.com.


Rolf Sartorius and Patricia Hanscom form Social Impact in response to a growing global emphasis on making international development more effective in improving people’s lives. SI mobilizes a small group of outstanding global consultants with a deep appreciation for participatory development and results-based management.


SI focuses on applying best practices in program design to address HIV/AIDS in sub-Saharan Africa. After passage of the Government Performance and Results Act, SI develops new tools and approaches to support results-based management of U.S. foreign assistance.



SI helps the World Bank enhance its effectiveness as a development agency. SI works with USAID’s Office of Transition Initiatives to strengthen program planning and management in fragile states. SI conducts impact evaluations for the US Millennium Challenge Corporation and partners with the Bill and Melinda Gates Foundation.


SI opens its first overseas project office in Beirut, Lebanon. SI begins work with the MasterCard Foundation and provides services through the DFID Global Evaluation Framework Agreement. SI is named USAID Small Business of the Year in 2013 for demonstrating best practices in the field and serving as a model for small and minority-owned implementing partners. In 2014, SI graduates from small business status.


SI operates numerous project offices overseas and expands it work to the domestic sector by launching a domestic line of business. SI also develops new service lines such as data science, third-party monitoring and digital solutions. SI leads the development and implementation of the BRIDGE survey – the first-ever benchmarking of Diversity, Equity and Inclusion (DEI) in the global development sector. SI launched the Equity Lab to address issues at the intersection of DEI and Monitoring, Evaluation and Learning (MEL).


As a mid-size business, SI continues and grows its work providing long- and short-term technical and consulting support supporting long-term program field offices and engaging in across hundreds of short-term projects across the globe. SI continues to attract new clients, new talent, and to further its mission to advance development program effectiveness.