The American big church movement is growing. While churches in the majority are small, the top one percent of churches claims fifteen percent of church memberships, money and full time staff. The Top twenty percent claims sixty to sixty five percent(1). As large churches take a larger and larger share of the market, smaller churches struggle to keep their doors open. In this essay I will explore some factors which allow successful churches to attract new members and retain existing members to grow exponentially in a saturated and declining religious marketplace, and offer some suggestions for church leaders wanting to stimulate growth in their congregations. The main influences to church growth are church friendliness, counter cultural doctrines, service style and marketing.