Communitech has unveiled the fourth cohort of its Rev accelerator, with five companies being welcomed into the sales-focused program.

The six-month accelerator takes in companies with some traction and teaches them to ramp up their sales with weekly sales targets. There is an intake every three months so there is some overlap among the cohorts, which operate out of the second floor of the Communitech Hub.

Communitech said the newest Rev companies have already graduated from programs such as Y Combinator, Tech Stars Mobility, Ryerson DMZ, the Accelerator Centre program and the University of Waterloo’s Velocity program.

The companies are:

Alert Labs

Alert Labs is an Internet of Things hardware/software solution that protects properties by gathering, analyzing and reacting to real-time data through sensors installed in the building. The device checks such factors as heat, electricity, or the dryness of the floor at several properties at once, so it is ideal for landlords or cottage owners.

Chalk.com

Chalk provides workflow-organization software for teachers, and has strong uptake in Ontario schools. It’s gained a vast customer base by offering its product free to front-line teachers, and charging school boards for the administrative service and data. [Our previous report on Chalk.com is here.]

Livegauge

LiveGauge lets brands or agencies track the success of marketing campaigns and assess the return they make on “experiential” campaigns. The product measures such factors as the reach, demographics and emotional response of the audience.

PitStop

PitStop uses big data and machine learning to predict vehicle failure in time to prevent it. The company, which has gone through the Techstars accelerator in Detroit, has developed hardware that goes in a car to predict when a problem is about to happen so the owner and service station can address it immediately. [Our previous report on PitStop is here.]

Reebee

Rebee has developed an app that lets the user get shopping flyers on their smart phones, and browse, search or filter the content. The app also let the user compile a shopping list while going through them.