InterServ is recognized as a leading advocate in Northwest Missouri in addressing the needs of the most vulnerable InterServ is a faith-based, not-for-profit, human service organization countering the effects of poverty on children, youth, elderly and families in Northwest Missouri. Since 1909, we have worked to seek out and assist those in need, so that all may live their lives more fully and more capably. InterServ's history (and our future) is built on a foundation of faith and an unwavering determination to advocate on behalf of those with the fewest alternatives