What Is a PQQ? Meaning, Process and What to Expect
A PQQ, or Pre-Qualification Questionnaire, is an early-stage procurement document used to assess whether a supplier meets the minimum requirements to bid for a contract. It is commonly used to shortlist suppliers before they are invited to submit a full tender response.
In UK public procurement, PQQs have largely been replaced by SQs, or Selection Questionnaires. However, many buyers and suppliers still use the term PQQ, especially in private sector procurement and older tender processes.
What is a PQQ?
A PQQ is designed to help buyers assess whether your business is suitable for a contract before they invite you to the next stage. In practice, it is used to review your company details, financial standing, policies, accreditations and previous experience.
This means a PQQ is not usually the stage where you explain in detail how you will deliver the contract. Instead, it is the stage where you prove that your business is eligible, compliant and capable of progressing.
What is the difference between a PQQ and an SQ?
A PQQ and an SQ serve a similar purpose. Both are used to shortlist suppliers before the full tender stage. However, an SQ is the more modern and standardised version used in UK public sector procurement.
In simple terms, many buyers now refer to this stage as an SQ rather than a PQQ. Even so, suppliers still often use the term PQQ as a general way of describing the pre-qualification stage.
When are PQQs used?
PQQs are most commonly used in two-stage procurement processes, particularly where the buyer wants to assess supplier suitability before inviting full bids. They are often used for more complex contracts, higher-risk services or opportunities where the buyer expects a large number of interested suppliers.
For example, a buyer may first issue a PQQ or SQ to shortlist eligible suppliers. They then invite the successful suppliers to the next stage, which is usually an Invitation to Tender (ITT).
How does the PQQ process work?
The process usually follows these steps:
- The buyer publishes a PQQ or SQ.
- Interested suppliers complete the questionnaire.
- The buyer reviews submissions against the eligibility criteria.
- The buyer shortlists the suppliers that meet the requirements.
- Shortlisted suppliers receive the ITT or next-stage tender documents.
This means the PQQ stage acts as a filter. As a result, only suppliers that meet the required standard move on to the full tender response stage.
What information does a PQQ usually ask for?
Although every questionnaire is slightly different, most PQQs ask for similar core information. This usually includes:
- Company information such as your registered name, address, registration number and VAT details
- Economic and financial standing such as turnover, insurance and financial stability
- Legal and regulatory compliance including exclusion grounds and declarations
- Health and safety arrangements and compliance
- Environmental management and relevant policies
- Equality, diversity and modern slavery statements or policies
- Quality management systems such as ISO 9001 or equivalent controls
- Project-specific questions where relevant
- Staff and subcontractor information if the buyer requests it
- Case studies or references that demonstrate relevant experience
What should suppliers prepare before completing a PQQ?
Before starting a PQQ, it helps to gather the information and documents you are likely to need. This makes the process quicker and reduces the risk of missing something important.
Useful documents may include:
- Company registration and VAT details
- Insurance certificates
- Accounts or turnover information
- Health and safety policy
- Environmental policy
- Equality and diversity policy
- Modern slavery statement
- Relevant accreditations or certifications
- Recent case studies or references
Do PQQs include case studies?
Yes, they often do. Buyers commonly ask for two or three examples of similar contracts completed within the last three to five years. These case studies should be relevant in scope, scale and complexity to the contract you are applying for.
Strong case studies usually include what the contract involved, how you delivered it, any challenges you overcame and the results achieved. If a buyer allows it, testimonials or client references can also strengthen your submission.
What sectors use PQQs?
PQQ-style questionnaires are used across a wide range of sectors, including construction, facilities management, logistics, technology and professional services. However, the terminology and format may vary depending on the buyer and the procurement route.
PAS 91
In the construction sector, a similar pre-qualification process is often known as PAS 91. This is a standardised questionnaire designed to reduce duplication and make construction pre-qualification more consistent.
PCS-Tender and SPD-style systems
Some procurement platforms use standardised supplier profiles or selection documents, which allow businesses to reuse core information across multiple opportunities. This can save time, especially where you are bidding regularly.
What happens after a PQQ?
If your business passes the PQQ stage, the buyer will usually invite you to the next stage of the process. This is often a full tender response, such as an ITT submission, where you explain how you will deliver the contract and provide pricing.
The buyer will then evaluate those next-stage bids and award the contract to the most advantageous tender (MAT) or whichever supplier best meets their stated award criteria.
Common PQQ mistakes
Many suppliers lose out at the PQQ stage because of avoidable mistakes. The most common include:
- Submitting incomplete information
- Failing to meet minimum eligibility criteria
- Using weak or irrelevant case studies
- Uploading the wrong documents
- Missing deadlines
- Providing inconsistent information across the submission
Because this is often a compliance-heavy stage, accuracy and completeness matter just as much as presentation.
FAQs
What does PQQ stand for?
PQQ stands for Pre-Qualification Questionnaire. It is used to assess whether a supplier is eligible to progress to the next stage of a tender process.
What is the purpose of a PQQ?
The purpose of a PQQ is to shortlist suppliers by checking their financial standing, compliance, policies, experience and overall suitability for a contract.
Is a PQQ the same as an SQ?
They are very similar. An SQ is the more modern and standardised version used in UK public sector procurement, while PQQ is the older term that many people still use.
Do all tenders have a PQQ stage?
No. Some tenders are single-stage processes, while others use a PQQ or SQ first to shortlist suppliers before inviting full bids.
What happens if you fail a PQQ?
If you fail a PQQ, you will usually not progress to the next stage of the tender. This is why it is important to check the eligibility criteria carefully before submitting.
Written by Joshua Smith, a seasoned bid-writing expert with experience across the UK, Middle East, and US, helping organisations secure the contracts they deserve through high-quality, competitive tender responses.
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