Arkansans for Equality filed its paperwork to register as a limited liability corporation with the Secretary of State's office early Friday afternoon.
"We're hoping that we can work with both sides of the political spectrum and people from all across the state," said Jennifer Steele, one of the organizers.
The battle lines in this political fight are already drawn, though.
"We'll see how big a fight it turns into," said Jerry Cox, Executive Director of the Family Council, a Little Rock based conservative group that opposes same-sex marriage.
"The last time this measure was on the ballot, 75 percent of the people said marriage should be between a man and a woman," he said.
Steele says her group has 400 members. They plan to start working on getting petitions in February.
Another group, Marriage Equality, is meeting with their attorneys next week to start crafting the language of their proposal, according to an email from that group's spokesman.
That group aims to get a proposal on the ballot by 2016.
Nine states and the District of Columbia have approved same-sex marriage. Among them: Connecticut, Iowa, Maine, Maryland, Massachusetts, New Hampshire, New York, Washington and Vermont.