A public tender is a procurement procedure run by a contracting authority within an applicable public-procurement framework. A private RFP is a buyer-defined competitive request outside that public procedure, although contract, competition, sector and internal governance still apply. Both ask suppliers to prove fit and value. They differ most in procedural authority, permitted communication, formal eligibility, evaluation discretion, negotiation and remedies.
Teams that apply a relationship-led private sales motion to a public tender can miss formal evidence, use the wrong channel or assume a clarification will be negotiated later. Teams that treat a private RFP like a closed legal exam can ignore stakeholder discovery, solution shaping and commercial dialogue that the buyer permits. The document titles may look similar, so the operating difference must be established from the complete package and the governing procedure.
Public work is fail-closed on formal conditions: confirm the complete authoritative package, procedure, eligibility, required evidence, criteria, communication route and submission mechanics before investing heavily in narrative. Private work still needs disciplined compliance, but can place more weight on relationship context, discovery and negotiated solution development where allowed. Never infer the procedure from the word “RFP.” Read the documents and obtain legal or procurement advice for consequential uncertainty.
Procedure
The public buyer is constrained by a procedure that also constrains the bidder
Public procurement seeks accountable use of public funds through rules that vary by jurisdiction, authority, value, subject and procedure. In Switzerland, the federal act states principles including transparent, objective and impartial procedures, equal treatment, measures against conflicts and protection of bidder confidentiality. Simap publishes public-procurement opportunities and supports document access, questions and electronic tender submission. The exact legal and procedural requirements still come from the applicable documents, not from a general article.
A private buyer can design a formal competition but usually retains more contractual and commercial discretion. It may conduct stakeholder meetings, adjust a shortlist, request a demonstration or negotiate scope and price, subject to its own commitments and applicable law. Suppliers should not assume informality: a private RFP can impose strict deadlines, security gates and templates. The distinction is who defines and may change the procedure, what duties constrain that choice and what recourse exists.
| Dimension | Public tender | Private RFP |
|---|---|---|
| Authority | Applicable procurement framework and documents | Buyer process, contract and applicable law |
| Communication | Designated channel and equal-treatment controls | Buyer-defined access and stakeholder dialogue |
| Eligibility | Formal conditions and documentary evidence | Buyer qualification and commercial discretion |
| Evaluation | Published criteria within the procedure | Written criteria plus buyer decision process |
| Negotiation | Procedure-dependent and potentially constrained | Often possible but never guaranteed |
Response
Public responses make compliance and evidence visible to an unknown evaluator
A public evaluator may only use the submitted material and the stated process. Write so the relevant evidence is easy to find against each criterion. Match required structures, distinguish mandatory conditions from scored improvements and avoid relying on conversations that are absent from the official record. A strong narrative still matters, but it cannot repair failed eligibility or a non-compliant submission.
A private evaluator may combine the document with demonstrations, account history, references, workshops and commercial dialogue. The response can connect more directly to known stakeholder priorities and propose alternatives, if the buyer permits them. Requirement control remains necessary because relationship context can create assumptions. Record which statement came from the RFP, a clarification, discovery or the supplier’s proposal, then price and approve accordingly.
- Make public evidence explicit and criterion-aligned.
- Do not rely on private conversations outside the official public record.
- Use permitted private discovery to refine a controlled baseline.
- Separate buyer requirement from supplier assumption or option.
- Keep commercial and contract approval connected to the final wording.
Qualification
A public no-bid can be correct even when solution fit is excellent
Public opportunities can contain binary conditions that remove an otherwise strong bidder. Check them before committing scarce expert time. An unresolved requirement is not automatically a failure, but it needs a dated owner and a legal, procurement or buyer clarification path. Do not invent eligibility, references, certificates, signatures or partner arrangements. Where the rules are unclear or consequential, specialist advice is more valuable than confident interpretation.
Private qualification often gives greater weight to access, relationship, urgency, budget credibility, buying process and the supplier’s ability to shape value. Formal gates still exist, particularly around security, finance, contract and vendor onboarding. Use one decision record that covers both procedural and commercial fit, but preserve the difference between knockout risk, scored strength and practical sales optics.
- Run formal gates before resource and win-probability scoring.
- Record unknown conditions rather than treating them as passed.
- Confirm the submission channel and authorized uploader early.
- Assess contract and price obligations before sunk cost grows.
- Distinguish legal knockout, score and commercial confidence.
What good looks like
Useful outcomes from public tender vs private RFP
- The team identifies the buyer type, governing procedure and authoritative document set before qualification.
- Formal eligibility and submission gates are separated from scored quality and commercial positioning.
- Communication uses the permitted channel and every material clarification reaches the working requirements.
- Public responses cite the required evidence without relying on unstated relationship context.
- Private responses use legitimate discovery and dialogue without losing requirement discipline.
- Evaluation criteria and buyer discretion shape the response plan and review method.
- Contract, price and negotiation assumptions are tested before the bid becomes difficult to stop.
- The final package is authorized, technically accepted and preserved with its decisions and obligations.
Operating model
How to run the work
- 01
Establish procedure and package authority
Identify the contracting entity, procedure, platform or buyer channel and all current documents, annexes, questions and amendments. Record versions, dates, deadlines and time zone. Do not treat a notice or invitation email as the complete requirement set.
- 02
Run formal gates before scoring fit
Test participation, exclusions, declarations, references, certifications, signatures, language, lots, consortia or subcontracting and other stated conditions. Cite each source clause and evidence. Mark confirmed, failed or unresolved rather than averaging a gate into an opportunity score.
- 03
Map communication and evaluation
Document the permitted question route, contact restrictions, answer visibility and amendment process. Extract criteria, weights where stated, minimum scores and evidence expectations. For a private RFP, confirm which discovery and negotiation routes the buyer actually permits.
- 04
Build the response and commercial strategy
Connect each requirement to an owner, evidence, solution decision and final location. Address public criteria explicitly and consistently. In private work, use buyer context and dialogue to refine value while preserving an auditable requirement baseline.
- 05
Verify release and preserve the record
Check completeness, file names, formats, limits, signatures, portal account, uploader authority and receipt. Preserve the submitted package, acknowledgements, questions, decisions, assumptions and resulting commitments for clarification, award, handover or challenge.
Evaluation
Questions that change the decision
- Which procurement framework, procedure and buyer instructions govern this request?
- Is the package complete and current at the authoritative source?
- Which condition is a formal gate, scored criterion, contractual term or practical concern?
- What communication with the buyer is permitted, recorded and shared with other bidders?
- How much discretion does the buyer retain over criteria, shortlist, dialogue and negotiation?
- Which evidence must exist by submission and which solution details can be clarified later?
- Can the company accept price, contract, validity and delivery obligations if selected?
- What unresolved issue would trigger a no-bid or formal question?
Failure modes
Where teams lose control
A public notice can be mistaken for the complete tender package.
A mandatory declaration or signature can be lost inside an annex or portal step.
Informal buyer contact can conflict with a stated public communication route.
A private incumbent relationship can create false confidence about a competitive decision.
Teams can overinvest in narrative before confirming eligibility and contract acceptability.
A clarification or amendment can change a requirement without updating the compliance view.
Public criteria can be answered implicitly even though evaluators need explicit evidence.
Private evaluation can evolve, making stakeholder and commercial context more important than the written scorecard.
Negotiation can be assumed where the procedure or timetable leaves little room.
A technically uploaded file can still be incomplete, unauthorized or unacknowledged.
Measurement
Measure the finished job
Measure the completed workflow, including review effort and exceptions. Output volume on its own is not evidence of a better process.
- formal gates confirmed, failed and unresolved before bid decision
- requirements linked to current source clauses and owners
- clarifications and amendments incorporated before drafting cutoff
- scored criteria with explicit evidence and review result
- late eligibility, contract and submission defects
- buyer interactions using the approved communication route
- internal effort by qualification, response and submission stage
- commercial assumptions resolved before final approval
- on-time authorized submissions with verified receipt
- award, loss and clarification learning captured against the decision
Questions
Common questions
What is the main difference between a public tender and a private RFP?
A public tender operates within an applicable procurement framework and formal procedure, while a private RFP follows a buyer-designed commercial process subject to applicable law and commitments. Communication, eligibility, evaluation discretion, negotiation and remedies can therefore differ materially.
Are public tender responses only about compliance?
No. Compliance and eligibility establish whether a response can be considered. Quality, solution, price and other published criteria determine competitiveness. The response should make both mandatory evidence and scored value explicit within the permitted format.
Can suppliers negotiate a public tender?
It depends on the jurisdiction, procedure and tender documents. Some procedures allow dialogue or clarification, while others constrain negotiation materially. Never assume. Read the complete package and obtain appropriate advice where the commercial consequence is significant.
Does a private RFP need a compliance matrix?
It often benefits from one. A private buyer may have more discretion, but the team still needs to trace requirements, questions, evidence, assumptions, owners and final responses. The matrix can be lighter when the request is simple and dialogue is extensive.
Sources
Primary references
- Federal Act on Public Procurement of 21 June 2019 Swiss Federal Procurement Conference
- Swiss public procurement platform for suppliers Association simap.ch
About the author
Malcolm Ferguson
Malcolm writes from the buyer side about procurement, sourcing, due diligence and the evidence suppliers need to pass a serious evaluation.
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