STEMM is a 501c-3 non-profit organization dedicated to serving the people of Tanzania through compassionate Christian care through medical, educational, orphan care and community development.  For over 20 years we have been transforming lives and partnering with local Tanzanians to address their most crucial needs.


STEMM History

Founded in 1997 by Dr. Steve Meyer, his wife Dana Meyer, Pastor Jon Gerdts, Michael Boose and Lazaro Nyalandu.  After a life-changing mission trip with their church in Sioux City, Iowa this group felt called to start an NGO to address the critical needs of the country.  We are a relationally driven hands-on organization who strives to follow Gods calling to serve the least of these.  For the last 20 years, STEMM has faithfully been bringing teams of volunteers to Tanzania every 6 months. We have currently sponsored over 10,000 secondary and university students, have been responsible for over 1,000 operations and now operate a 100-acre campus in Mbuguni with an orphanage of 24 beautiful children and looking to soon add more homes and more children.  We recently build a 40-person guesthouse on our campus, so volunteers can come and stay and volunteer and visit the amazing community we live in.


STEMM Campus

Situated on 100 scenic acres, the STEMM Children’s Village is only a 25-minute drive from Kilimanjaro International Airport and 1-hour drive from Arusha where most western amenities are available.  Our campus includes a regionally top- rated orphanage of 24 beautiful children, our 40-person guesthouse (STEMM Mountainview Retreat Center) and a rapidly expanding 80 acres of agriculture.

STEMM MINISTRIES (volunteer opportunities)


  • Over 1,000 specialty surgeries performed with the focus on children
  • Performed 1st total knee and total hip arthroplasty in the nation
  • Regular medical teams to Tanzania for collaboration, teaching, and training
  • Helped facilitate Operation Walk and WOGO teams bringing a joint replacement to Arusha Lutheran Medical Center
  • Donated and delivered millions of dollars of medical supplies
  • Built an exemplary birthing center in our village of Mbuguni to address the severe problem of maternal/neonatal mortality


  • Scholarships to over 10,000 secondary and university students
  • Christian leadership mentoring at our STEMM affiliated schools
  • Financially and logistically assist local grade schools in our village


  • Operate a 24-child orphanage as a family unit (capacity to add more as funding is met)
  • Each home has a mama and auntie that raise the children in a caring Christian environment
  • 2nd best-rated orphanage in Arusha region of 2 million people


  • 80 acres of fertile farmland, ample water and 2 deepwater wells on STEMM campus
  • Goal to develop an Agricultural Learning Center of Excellence
  • Transforming farming methods taught to local villagers to empower and increase their level of income
  • Essential need to maximize financial success to support our mission work and outreach projects


Wells/Water Projects

  • Provided water pipe to outside community of free safe water from our well on the initial building of STEMM Children’s Village
  • Well School program-recent construction of well and water tower for a local school for clean water for children and piped to schools’ farmland for irrigation

Amputee Program

  • Initiated 3 years ago in response to a young local man who lost his leg in a car accident
  • Collaborate with KCMC hospital in Moshi and American prosthetic companies
  • Provided new artificial limbs to 15 local villagers

School Lunch Programs

  • Initiated 2 years ago with local grade schools and parents to provide a hot meal every school day to children—results have been phenomenal
  • Currently, support 4 local schools feeding over 3,000-grade school students every day
  • Attendance increased by 50%
  • The pass rate for a test to enter high school increased from 38% to 83%

Small Change For A Big Change Black Board Project

  • Funds raised to repair and paint local school blackboards
  • An annual event where volunteers work alongside villagers to repair and paint


  • Bring teams from around Siouxland and other areas to Tanzania twice a year
  • Work closely with village leaders to identify and assist in priorities of needs of the community

To learn even more about the heart of STEMM go to

 www. Stemm.org