The Center for Health Market Innovations (CHMI) profiles more than 220 programs that harness private providers to deliver maternal, newborn, and child healthcare (MNCH) in low- and middle-income countries (LMICs). CHMI profiles programs that use innovative delivery and financing mechanisms to improve access, quality, or affordability of healthcare for the poor, including clinical social franchises, vouchers for safe deliveries, and high-volume/ low-cost maternity hospitals. This brief uses CHMI data and evidence from the literature to characterize market activity in maternal, newborn, and child health, highlight promising approaches, and identify areas for future research. While this brief analyzes programs focusing on MNCH, many programs offer integrated service delivery spanning reproductive health and family planning services. Many market-based approaches discussed in this brief may also be used to deliver integrated services.