Alpha and Omega Ministries is a Christian apologetics organization based in Phoenix, Arizona. James White, Director, is a professor, having taught Greek, Systematic Theology, and various topics in the field of apologetics for numerous schools. 

You can find out everything that you want to know about Dr. White from his website listed below. 

Grace to You began in 1969 which was the same year as the Apollo mission took us to the moon and back.  John MacArthur became the Senior Pastor at Grace Community Church in Sun Valley, California, and recordings of his preaching were made to share with members who were unable to attend.  A radio station began to play the tapes over the air, and the ministry of Grace to You was like that of an Apollo rocket ship, sitting on the launch pad, ready to blast off.

Ligonier Ministries is an international Christian discipleship organization founded by theologian Dr. R.C. Sproul in 1971. Ligonier exists to serve the church by equipping Christians to articulate what they believe, why they believe it, how to live it, and how to share it. Proclaiming God’s holiness is central to Ligonier’s purpose.

...more at Ligonier Website

OnePassion Ministries exists to ignite a supreme passion for God and His glory in all people throughout the world. As our name indicates, the strategic goal of this ministry is to enflame hearts with an all-consuming desire for Jesus Christ and His gospel. Our primary aim for believers from every walk of life is that they be revived and emboldened to live exclusively for the greatness of God. This intentional focus is to impart the knowledge of the truth by equipping pastors and church leaders, maturing lay people, and launching a new reformation in the church today.

Truth For Life is the teaching ministry of Alistair Begg and is committed to teaching the Bible with clarity and relevance so that unbelievers will be converted, believers will be established, and local churches will be strengthened.

On February 27, 1995, Truth For Life began airing its 25-minute daily program on seven radio stations. Today, Truth For Life can now be heard in every major radio market across the U.S., and also in select Canadian markets, through 1,655 radio outlets.

Voddie Baucham wears many hats. He is a husband, father, former pastor, author, professor, conference speaker, and church planter. He currently serves as Dean of Theology at African Christian University in Lusaka, Zambia.

Voddie makes the Bible clear and demonstrates the relevance of God’s word to everyday life. However, he does so without compromising the centrality of Christ and the gospel. Those who hear him preach find themselves both challenged and encouraged.

Wretched TV and Radio are hosted by Todd Friel. On the show, you will see and hear live witnessing encounters and discussions of tough theological issues and various topics in the Christian community. Some days are more wretched than others, but our desire is to proclaim Amazing Grace as often as possible.

You can find out everything that you want to know about Todd Friel from his website listed below.