| Name | Purpose | Data centre Location | Website |
| Azure Dev Ops | DevOps toolchain for developing and deploying software | USA | https://azure.microsoft.com/en-us/services/devops/ |
| Clockify | Internal Time Tracking Software for consultantcy time | USA | https://clockify.me/ |
| Email (Outlook Exchange) | Email client | EU/UK | https://outlook.live.com/owa/ |
| Firebase | Deliver push notifications to mobile devices | US | https://firebase.google.com/ |
| GoogleDrive | Cloud Storage | EU | https://www.google.com/intl/en-GB/drive/ |
| HelloSign | Used for Oak product E-signature solution for deals | USA | https://gb.hellosign.com/ |
| MailChimp | CRM system used to communicate with customers and prospects | USA | https://mailchimp.com/ |
| Microsoft OneDrive | Cloud Storage | EU/UK | https://www.microsoft.com/en-ww/microsoft-365/onedrive/online-cloud-storage |
| Process Street | Process and Checklist Management | USA | https://www.process.st/ |
| SalesForce | CRM | UK | https://www.salesforce.com/ |
| Sendgrid | Email service provider | USA | https://sendgrid.com |
| Thinkific | Online Courses for customers | USA | https://www.thinkific.com/ |
| Tockify | Web Calendar | EU | https://tockify.com/ |
| UserVoice | Product Feedback | USA | https://uservoice.com/ |
| Xero | Accounting Software | USA | https://www.xero.com/ |
| ZenDesk | Customer Service Software | EU | https://www.zendesk.co.uk/ |
| Zoom | Video Hosting Platform | USA | https://zoom.us/ |