HubSpot, a growth platform, agreed to acquire PieSync, a cloud services provider. Financial terms were not disclosed. "The HubSpot platform has grown significantly over the past four years, with more than 300 integrations now available to customers. While those integrations are powerful on their own, the addition of PieSync's two-way sync technology will amplify that power and enable our customers to get the most value out of the tools they use every day," Brian Halligan, HubSpot co-founder and CEO.