Selling a company is one of the most complex and consequential decisions in an entrepreneur's journey. It is rarely just a financial event: it involves a life's work, a team, a reputation and, often, a family. This guide describes the process, the critical considerations and the role of a specialised advisor at each stage, so that owners and shareholders in Portugal can approach a transaction with clarity and from a position of strength.

When to consider selling your company

There is no universal right moment, but there are conditions that consistently produce better outcomes. The decision typically sits at the intersection of three factors:

  • The business cycle. Companies sell best when they show consistent results and a credible growth trajectory ahead, buyers pay for the future, not the past.
  • Market conditions. The appetite of strategic and financial buyers, the availability of debt and the multiples being paid in the sector all move in cycles.
  • The shareholder's objectives. Succession, the absence of a successor, the wish to de-risk personal wealth, or a partner disagreement are all legitimate and frequent triggers.

Whatever the trigger, a structured valuation before any decision is taken is essential. It turns an emotional question into an informed one, and it is the foundation on which every subsequent step rests.

What is my company worth? Valuation methods

Three methodologies dominate in practice, and a credible valuation usually triangulates between them:

Normalised EBITDA multiple

The most common reference. EBITDA is adjusted for non-recurring and owner-related items to reflect the true, transferable earning power of the business, and a sector multiple is applied. Normalisation often has more impact on the final number than the multiple itself.

Discounted Cash Flow (DCF)

Projects future cash flows and discounts them to present value. It is particularly relevant for companies with high growth or significant planned investment, where historical results understate potential.

Comparable transactions

Benchmarks against the prices paid for similar companies in recent deals, anchoring the valuation in what the market has actually paid.

A critical distinction is between enterprise value (the value of the business as a whole) and equity value (what the shareholder actually receives, after deducting net debt). The buyer's profile, strategic acquirer versus financial investor, also shapes the final price, because each values different things.

Harbor Partners prepares an indicative valuation as part of the diagnostic phase, with no commitment.

Request a valuation

The sale process, phase by phase

A rigorous sell-side process typically takes 6 to 12 months, from initial preparation to closing, and unfolds across five phases:

Phase 1, Diagnostic & preparation

Company analysis, EBITDA normalisation and identification of value drivers and detractors. Preparation of the Information Memorandum and the financial model. Typical duration: 4–6 weeks. This is where the sale narrative is built.

Phase 2, Counterparty identification

Building a list of potential buyers, Portuguese and international strategic buyers, private equity funds and family offices, through a confidential and selective approach.

Phase 3, Competitive process

Management of a structured non-binding offer (NBO) process, selection of finalists and start of due diligence, supported by a virtual dataroom. Competition is what protects price.

Phase 4, Negotiation & due diligence

LOI and SPA negotiation. Coordination of commercial, financial, tax and legal due diligence. Issue management and problem solving to keep the process on track.

Phase 5, Closing & post-transaction

Closing conditions, completion accounts, earnouts and other deferral structures, plus post-closing support where applicable.

How to choose the right M&A advisor

The advisor you choose has a direct impact on the outcome. Assess each candidate against:

  • Specialisation in your size segment, the dynamics of a €5M deal differ from a €500M one. Harbor Partners focuses on transactions with an enterprise value between €3M and €50M, a segment underserved by the large investment banks.
  • Network of counterparties, both domestic and international.
  • Fee model aligned with the outcome, so the advisor's incentive matches yours.
  • Track record and verifiable references.
  • Confidentiality protocols and the seniority of the partners who will actually run your process day to day.

Common mistakes when selling a company

  • Poor preparation of the financial information, which erodes buyer confidence in due diligence.
  • No sale narrative, failing to articulate why the business is worth more than its historical numbers suggest.
  • Negotiating directly with a single buyer, with no competitive tension to protect price.
  • Premature disclosure to the market, to staff or to competitors.
  • Accepting the first buyer without running a structured, competitive process.

Tax considerations in Portugal

The tax structure of a transaction materially affects the net proceeds the shareholder keeps. The main considerations are the taxation of capital gains, the choice between an asset deal and a share deal, and the timing of the transaction. These choices are highly case-specific.

This guide is informational and not tax advice; we recommend consulting a specialist tax adviser early, because the optimal structure is usually decided before the process begins, not after.

Why Harbor Partners

Harbor Partners is a Lisbon-based investment advisory firm that runs sell-side processes with private equity rigour, with access to strategic and financial buyers and total confidentiality. The firm has advised on more than €300M in transactions and acts as a single, integrated point of accountability across the full lifecycle of a deal.

Read more about our Corporate Finance practice, our track record, or get in touch for a confidential conversation.