PQQ vs ITT: Understanding the Difference in Tender Stages
Navigating the tendering landscape is full of acronyms. Two of the most common and important are PQQ (Pre-Qualification Questionnaire) and ITT (Invitation to Tender). Understanding the differences between these two stages is critical for managing your bidding pipeline and preparing compliant, winning proposals.
While both represent stages in winning a contract, they serve completely different purposes, require different types of information, and are evaluated under different rules. You can see how both PQQ and ITT criteria are mapped out in our Interactive Example Tender Analysis.
PQQ vs. ITT: The Core Differences
In short, the PQQ focuses on your past, while the ITT focuses on your future proposed delivery of the contract. The PQQ evaluates whether you are qualified to bid, whereas the ITT evaluates how you plan to deliver the contract and for how much.
| Feature | PQQ (Pre-Qualification) | ITT (Invitation to Tender) |
|---|---|---|
| Primary Goal | Filter out unqualified suppliers and create a shortlist of capable bidders. | Evaluate proposals and award the contract to the best supplier. |
| Core Focus | Company credentials, financial stability, insurance, experience, and compliance. | Technical delivery methodology, staffing, project plan, risk management, and pricing. |
| Typical Questions | Provide 3 case studies of past work; upload standard policies; list financial turnover. | Describe your mobilization plan; submit pricing spreadsheet; detail quality control methods. |
| Scoring | Often scored on a Pass/Fail or basic threshold basis to shortlist. | Scored using a detailed qualitative weighting matrix (e.g., 60% quality / 40% price). |
| Outcome | Shortlisted to receive the ITT (usually top 3 to 5 bidders). | Contract award or standstill letter. |
Understanding the Two-Stage (Restricted) Procedure
In the UK public sector, buyers utilize the PQQ and ITT stages in what is known as the Restricted Procedure (two-stage tendering). Here is how the sequence flows:
- Stage 1: The PQQ Publication: The buyer publishes the opportunity. Any supplier can download and submit a PQQ response.
- Stage 2: Shortlisting: The buyer evaluates PQQs, discarding those who fail mandatory criteria, and ranks the remaining bidders. The top-scoring bidders (typically 3 to 5) are shortlisted.
- Stage 3: The ITT Issuance: The buyer issues the full ITT package only to the shortlisted suppliers.
- Stage 4: Tender Submission & Award: The shortlisted bidders submit their detailed ITT responses. The buyer evaluates these and awards the contract.
Why Do Buyers Use this Two-Stage Model?
For complex contracts, evaluating dozens of long technical proposals is extremely time-consuming for procurement teams. The PQQ stage allows them to quickly narrow the field to the most capable suppliers. For SMEs, this is also beneficial because it means you do not waste time writing a 50-page technical bid if you do not meet the baseline qualifications.
Frequently Asked Questions
No. In the **Open Procedure** (single-stage tendering), the selection questionnaire (PQQ/SQ) and the ITT are submitted together at the same time. The buyer checks qualifications and scores technical proposals simultaneously.
Yes! Because PQQs ask for standard company info, financial histories, and policies, you can build a 'bid library' of reusable answers. Just ensure you update signatures and tailor case studies to match the specific contract.