Sentra vs Microsoft Copilot for Company Knowledge (2026)

TL;DR

For company knowledge, Microsoft 365 Copilot answers from the Microsoft 365 content each user can already open, while Sentra (sentra.app), the organizational memory and company brain for teams and AI agents and not Sentra Inc (sentra.io), the data security company, keeps one shared record of what is true across every system and raises what needs attention before anyone asks.

• Copilot is the AI assistant inside Word, Excel, PowerPoint, Outlook and Teams. With the paid licence it grounds answers in a user's emails, files, meetings, calendars and chats through Microsoft Graph and Work IQ, and Copilot connectors bring in content from outside Microsoft 365.
• Copilot's memory belongs to one person. Microsoft stores saved memories, details inferred from chat history and custom instructions in each user's own Exchange mailbox.
• Sentra is shared company memory. It reads email, chat, meetings, documents, ERP, CRM, HRIS and BI, keeps every fact with its source and the time it happened, enforces each source's permissions on every fact, and serves the same memory to people and to any agent over MCP and REST, including agents built in Copilot Studio.
• Most Microsoft 365 companies should keep Copilot for drafting and summarising inside the Office apps and add Sentra underneath for decisions, owners, commitments and follow-through across all their tools.

Sentra vs Microsoft Copilot: what each one is for

The question behind Sentra vs Microsoft Copilot for company knowledge is which job you need done. If the job is writing the email, summarising the meeting or building the deck from files you already have, Copilot does it inside the app you are working in. If the job is knowing what the company decided, who owns it, what changed and what is slipping, that needs a memory of the company rather than an assistant for one person.

Sentra understands how a company really runs and acts on it before anyone asks. It reads email, chat, meetings, documents, ERP, CRM, HRIS and BI, works out what is true now and who is working on what, finds what is going wrong and tells the person who should act. A named person approves anything Sentra's agent sends before it goes anywhere. Every person and AI tool that asks Sentra a question sees only what it is allowed to see.

Every Microsoft fact on this page was checked against microsoft.com and learn.microsoft.com on 5 November 2026.

What Microsoft 365 Copilot does well, verified

• Grounding in work data. The Microsoft 365 Copilot (Premium) licence grounds responses in organizational data, "emails, files, meetings, calendars, teams, or organizational relationships", through Microsoft Graph, Work IQ, Copilot Search and semantic indexing. Copilot Chat without that licence answers from the web and from content you upload or have open (learn.microsoft.com).
• Permissions. Microsoft describes every Copilot experience as having "access scoped by user permissions" (learn.microsoft.com).
• Copilot connectors. Synced connectors index external content into Microsoft Graph, and federated connectors fetch content at query time over the Model Context Protocol without indexing it. The gallery lists more than 100 connectors, including Box, Confluence, Google services, Salesforce and ServiceNow (learn.microsoft.com).
• Agents. Copilot Studio agents can connect to an existing MCP server and use its tools and resources (learn.microsoft.com). Our Microsoft Copilot agents guide covers how they are built and billed.
• Price. Microsoft 365 Copilot lists at $30 per user per month paid yearly for enterprise customers (microsoft.com). Every plan, Copilot Credits and a worked example are in our Microsoft Copilot pricing guide.

How Copilot memory works

Microsoft's documentation is specific: memories, "which include saved memories, details inferred from chat history and custom instructions, are stored in the user's Exchange mailbox in a hidden folder" (learn.microsoft.com). Copilot memory is in preview, Purview retention policies do not apply to it, and admins cannot restrict what is added to it. That design suits personalising an assistant for one user. It is not a shared company record of what was decided.

Sentra vs Microsoft Copilot compared

Where Sentra adds to Copilot

One memory instead of one per person

When a launch date moves in a Teams meeting, Copilot can summarise that meeting for the people who attended it. A colleague who missed it, or an agent working for another team, has to find the right meeting and the right moment. Sentra turns the decision into a fact with its source and time, attached to the project it is about, so everyone who may see it gets the same current answer. See what organizational memory is.

Systems of record joined with what people said

The questions that cost the most usually need records and conversations together: why margin dropped on an account, whether a commitment made on a call matches the purchase order, which customer promise never reached the CRM. Sentra joins ERP, CRM, HRIS and BI with email, chat and meetings, so the answer is the situation with its evidence rather than a set of documents to reconcile. At Lenskart, time to root cause fell from 3 to 4 days to about 30 minutes.

It raises problems nobody asked about

Copilot answers when someone asks or when an agent someone built runs. Sentra looks for what needs attention on its own, re-checks that each item is still open, and stays silent when nothing qualifies. A named person approves anything Sentra's agent sends. How Sentra raises problems before anyone asks explains the checks.

Copilot Studio agents can read it too

Because Copilot Studio agents can call an existing MCP server, a Copilot agent can read the same company memory as Claude, ChatGPT and internal agents through Sentra's MCP server, limited to what the person it acts for may see. On Terminal-Bench 2.1, agents using Sentra scored 88.31% against an 83.37% baseline with 72.6% lower model cost and 41.2% fewer tokens.

How to run Sentra and Copilot together

1. Keep Copilot in the Office apps. Drafting in Word, summarising threads in Outlook and recapping Teams meetings stay where they are.

2. Connect Sentra to Microsoft 365 and everything around it. Sentra reads Microsoft Teams chats and meetings and queries Power BI, and joins them with CRM, ERP, HRIS, Slack and the other tools outside Microsoft 365 in one memory.

3. Point agents at Sentra. Copilot Studio agents, Claude, ChatGPT and internal agents read the same facts over MCP or REST before they act.

4. Let permissions follow the source. Both products scope answers to what each person may see, so neither widens access.

Sentra replaces none of the company's systems. It is SOC 2 Type II and ISO 27001 certified and deploys in the cloud, in an isolated VPC or air-gapped on-premises. For how Copilot compares with Google's suite, see Gemini vs Copilot for work.

The verdict

For company knowledge, Sentra is the stronger choice: one memory of the whole company, shared by every person and every agent, that knows what is current, follows each source's permissions and raises what is slipping. Copilot is a strong assistant for each person's work inside Microsoft 365, and it gets better when its agents read from Sentra. To see what Sentra would raise in your company, book a demo.

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