Business-to-business (B2B) firms that sell online are getting more sophisticated about their efforts, according to August research. They’re more than twice as likely to offer click-to-chat features as a year ago, and also significantly more likely to have a responsive website design.

In August 2016, ecommerce solutions provider Gorilla Group surveyed the websites of 78 B2B wholesale distributors and brand manufacturers in the US, following up on similar research conducted a year earlier, and found a number of changes.

According to the analysis, 50% of websites studied have implemented responsive design. That was almost double the percentage with responsive design in 2015 (26%).

In addition, 45% of these websites offer click-to-chat features, up from 21% in 2015.

Overall, it appears that B2B marketers are continuing to allocate more dollars to deploying mobile-friendly websites. Earlier this year, B2B digital marketing agency DemandWave released the results of its annual survey addressing B2B marketers’ goals for mobile and uncovered that, since 2014, more have adopted mobile-friendly websites. According to the February research, nearly two-thirds said they plan to invest in responsive design this year.