
The latest results from The Key Group provide another reminder of the scale now sitting behind Arbor and its wider school-facing offer. For the MIS market, the headline is clear: Arbor is backed by a parent group that is growing strongly and improving profitability.
The Key Group, the provider of the Arbor school management information system and online sector knowledge content and tools to more than 20,000 UK schools, has reported an adjusted EBITDA of £24.2m for the year ended 31 August 2025, on revenue up 41% to £75.6m. Adjusted EBITDA margin improved by 510 basis points to 32.0%.
While The Key Group is broader than MIS alone, its financial performance is still highly relevant to the sector. Arbor has become one of the most prominent players in the school MIS market, particularly among trusts, and these results suggest it sits within a business with both momentum and investment capacity.
For schools and MATs, that matters. Financial strength does not determine whether an MIS is the right fit, but it can influence a supplier’s ability to invest in product development, implementation, support and long-term roadmap delivery. In a market where trusts are increasingly looking for confidence as well as functionality, those factors are becoming more important.
The results also underline the growing importance of scale in the MIS market. As trusts look for platforms that can support more consistent operations, wider visibility and group-wide deployment, suppliers with the resources to keep investing are likely to remain in a strong position.

The full article from The Assignment Report can be read here
https://www.theassignmentreport.com/briefing/view,the-key-group-company-results_23488.htm
WhichMIS? view
The Key Group’s latest results reinforce Arbor’s position as one of the sector’s strongest growth stories. For the market as a whole, they are another sign that financial strength and long-term investment capacity are becoming an increasingly important part of the MIS conversation.
Next month we’ll be publishing Bromcom’s annual results.