Slack is currently rising as one of the top popular business-messaging apps in the tech realm. As a matter of fact, the $2 billion-worth company was able to get 2 million daily active users in less than two years.

As Slack rapidly vies on top, the company is not excluded in facing the rising competition in the industry and among its top competitors are Facebook, LinkedIn and Atlassian. But Slack CEO Stewart Butterfield is undaunted by the potential rivalry threats.

Stewart was actually confident that his red-hot startup company has a "big advantage" from other messaging apps, citing their focus on work communication, Business Insider noted.

"One advantage that I think Slack has for most people who use it is, you pull out your phone, you look at the home screen, there's the Slack icon," Butterfield told Scott Thurm of the Wall Street Journal. "You know when you tap this one, it's all the people you work with and it's only the people you work with. And that's a big advantage. People forget that's why they like it, to a certain extent. They say, 'Gee, it'd be great if I could use this for messaging with everyone.'"

Butterfield also added that because of their focus, Slack is able to repress all the unnecessary noise and distractions, making it an ideal work-communication tool.

"The problem with that is you end up with all of the bad things," he added. "Scamming and phishing and spamming and unsolicited sales calls. You look at email, LinkedIn or Facebook messaging, that's a problem. So, I think anything that's designed for consumer applications is going to have a hard time making its way to business."

Facebook and LinkedIn's messaging apps, however, are not in the same messaging space as Slack. But the companies are already planning to revamp its messaging apps layout as they aim to broaden its markets. In line with this, Facebook recently launched a business version of its service called, Facebook at Work.

Meanwhile, Slack is also contemplating to further differentiate its service from others, turning its app into a much broader platform where work-related activities like expense reports or status-update meetings could take place.

In addition to its new $80 million VC fund that concentrates on startups that make Slack-based apps, the company recently launched an App Directory where users can download third-party apps. These moves made Butterfield believed that Slack will be set apart from the rest of the messaging apps that are both in the consumer and business markets.

"I think anything that's designed for consumer applications is going to have a hard time making its way to business," Butterfield said in the interview.

In other news, Slack continues to prove the company is on the rise as it won the Fastest Rising Startup at the recent TechCrunch's 9th Annual awards show. The company proved to have a more diverse workforce than any other startup as it smartly chose to send four of its engineers, who are all black and female, to accept the award on stage, TechCrunch reported.