Yes! Of course!
My name is Humberto Valle, I'm an MBA strategist and have been a Digital Marketer for about 10 years now. As an SEO expert with www.Unthink.Me I can tell you for sure that yes adding backlinks to another website, as long as is relevant, will add value to that site. This would be a first tier backlink, what they are trying to do is get their website/company indexed, by search engines like Google, for a certain industry or topic. So if you have a blog that's about financial planning and retirement, an insurance agent who sells the same might benefit from a set of keywords turned into links pointing to a page within their site that also talks about financial -something- and insurance. So that Google indexes it for that category. The more they get the more relevant they will get. The problem is that it almost adds no value to you - if anything depending on how its done it can be taken away - so the trick to this relationship is to have them add links to another page of yours, from one of their other pages. It has to be relevant and for a keyword set that they are not also trying to rank.

or for a second tier type of backlink - you can ask them to link to an article or third-party website that includes your link already. This is an indirect link strategy where someone points to a page that mentions you from there. If you are looking for more information, we have some pretty useful articles in our website regarding lead generation and search engine optimization http://blog.unthink.me/how-long-does-seo-take