From day one to investor-ready, every month: how Lyceum built a tax function that scales as fast as it does

Lyceum is building an EU-sovereign GPU cloud for AI training and inference. Founded in 2025 across Berlin and Zurich, it raised a €10.3M pre-seed from redalpine and 10x Founders and started scaling headcount, infrastructure and transaction volume fast. From the first month, it needed a finance function that could move at the same pace.

Magnus Grünewald
Founder, Lyceum
Lyceum
Magnus Grünewald, Lyceum

Rather than bolt a tool onto its books, or hand them to a traditional firm that would slow it down, Lyceum partnered with Integral from day one: one dedicated tax advisor, a team of operations associates, and a platform that connects straight into its stack.

The outcome is a back office that keeps up with the company. Investor-ready numbers land within the first 10 days of every month, and have since Lyceum’s earliest days.

BWA by day 10, every month, since day one.

Finding a tax advisor that could keep up

A company raising a pre-seed and scaling into a GPU cloud generates volume fast, across the bank, the invoicing tool and the back office. Its investors expect clean numbers on a tight monthly cadence, and due diligence can arrive with little notice.

Lyceum didn’t want a tax tool bolted onto its books, and it didn’t want a traditional firm that moved slower than it did. It came in with sharp, specific requirements: the BWA inside the first 10 days of each month, custom and investor reporting on top, a stack that connects without manual exports, and an advisor who could stand behind the figures when investors looked closely.

Expertise and speed usually come from different places. A traditional firm brings the expertise but not the pace or the integrations. A cheap tool brings software but no advisor. Lyceum needed both at once, from the start.

Building a connected back office

Integral embedded one dedicated tax advisor, backed by a team of tax operations associates, to run Lyceum’s monthly bookkeeping end to end, from transaction to reporting.

The platform connects directly into Lyceum’s tools through MCP and direct integrations. The online bank, the invoicing tool and the back office all feed Integral automatically, so the month closes without manual exports. The BWA is prepared and delivered within the first 10 days, and Integral layers custom and investor reporting on top, in a form Lyceum can hand straight to its board. When a question comes up, the team gets a fast answer in the platform rather than waiting on an email thread. And when Lyceum went through funding due diligence, Integral supported the process and stood behind the numbers.

We needed a tax advisor that could move as fast as we do. Integral plugged straight into our stack, took the monthly close off our plate, and had our numbers investor-ready by day 10, every month. When we went through due diligence, they stood right next to us.
Magnus Grünewald
CEO at Lyceum

Scaling what works

As Lyceum hires and its transaction volume grows, the setup absorbs it. One dedicated advisor and an operations team scale the monthly close without the company having to think about it. The BWA still lands inside the first 10 days, with custom and investor reporting alongside it, and the books stay in a state that holds up to investor scrutiny between rounds.

For a company moving as fast as Lyceum, that is the difference between a board that trusts the numbers and one that chases them.

Meet a modern tax advisor built for fast-growing companies

Integral pairs a dedicated tax advisor and tax operations team with a platform that connects straight into your stack, so your numbers are investor-ready every month, from day one.

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