Standing on the Side of Love, a public advocacy campaign sponsored by the UUA, urges the end of programs that provide for local enforcement of federal immigration law as in Arizona. These programs "tear families apart and contribute to racial profiling, vigilantism, and fear of law enforcement that threatens the safety of all our communities," says the campaign.

"The discussion has gotten so polarized. There's no discussion of how detrimental current policies are to workers and the economy," says Brennan. By asking companies to get involved, "We're really trying to take a positive approach."

Brennan doesn't expect changes to come overnight. "Frankly, I think the next two years will be tough," he says, based on the positions various Congress members have taken. Still, "we need to introduce better information into the conversation now," he says.

The coalition is encouraged by the Partnership for a New American Economy, a group of bipartisan mayors and business leaders founded last year to raise awareness of the economic benefits of sensible immigration reform. Co-chairs include the CEOs of Boeing, Marriot, Microsoft, News Corp. and the Walt Disney Co.

So can companies that hire illegal immigrants still be considered socially responsible? Soumerai doesn't know anyone making a judgment. "The issue is complex. The big question is, 'Are (workers) being treated in a fair manner?'" she says.

The UUA doesn't have an official position on whether or not it's OK to hire illegal immigrants, but such practices are "evidence for the need of the kinds of policies we're advocating," says Brennan. He'd like to see companies include immigration policies in their social responsibility reports. The coalition encourages companies to post support for immigration reform on their company Web sites and in other corporate publications.

While immigration policy is not currently an investment screen for the UUA, which manages approximately $300 million for about 1,000 congregations, Brennan says it's a possibility down the road.

One company which has earned praise for its sustainability practices, Chipotle Mexican Grill (NYSE: CMG), has suddenly found itself as the poster child for immigration issues. The restaurant chain was recently forced to dismiss hundreds of illegal workers in Minnesota following a U.S. Immigration and Customs Enforcement audit, and ICE is now investigating its Virginia and Washington, D.C., locations. The company says it's been working to improve its policies and procedures for verifying documents.

Although environmentally focused investment management firm Winslow Management Company sold off Chipotle, a long-term favorite, in late 2010 because it passed its price expectation, "I'm hoping they do the right thing," says Winslow founder and chief investment officer Jack Robinson.

Employee relations are very important to him. "To me, it's fairly straightforward: we have laws in this country that we need to live by or see change. Any company that's breaking the law, no matter what the law is, is suspect. If a company breaks one law, is it breaking others?" he says.
Looking ahead, Robinson expects more discussion and corporate transparency regarding hiring practices in general. "Sustainability is not just about profits or the environment. It also includes corporate social responsibility."