Zephior vs PSIP
Get the method statement and the whole package made.
Choose Ziva when the bid requires direct work on original documents, calculations and supporting deliverables. She can carry that production assignment with company evidence and retained instructions. PSIP also connects UK monitoring, qualification and drafting, so the useful difference is the work completed beyond draft sections.
Where Ziva makes the difference
Get more of the work off your team’s desk.
Produce the original files around the draft
Ask Ziva to complete the buyer’s workbook, revise the methodology and prepare annexes or presentation files. She can change formulas, tables and layout. The team can review the actual package instead of manually placing a method statement and rebuilding its supporting documents.
Retain the way your company prepares bids
Ziva remembers terminology, formatting conventions and repeatable working instructions. Add project and sheet-specific guidance for the current buyer. Repeated tenders can use the company method without another long briefing or the same presentation corrections.
Keep gaps and specialist decisions in the workspace
Create an editable readiness checklist or risk register alongside the files. Source-scoped review and accepted document versions support correction and recovery. Compare this production loop with PSIP’s actual plan and evidence-gap workflow, while checking the UK coverage required for your pipeline.
Where each fits
Start with the job you need done.
Consider PSIP for
UK suppliers seeking public-source search, buyer and incumbent intelligence and a bid workspace.
Choose Zephior for
Teams seeking company-grounded file production and the option to delegate agreed preparation.
UK public-source coverage is explicit
PSIP names Find a Tender, Contracts Finder, Public Contracts Scotland, Sell2Wales and eTendersNI.
PSIP current plans and integration status(opens in a new tab)Higher plans include bid execution tools
Growth and above include a pipeline, qualification scorecard and AI drafting.
PSIP AI bid writing and customer submission boundary(opens in a new tab)Drafts expose missing customer facts
The product describes marked gaps where company evidence is required.
PSIP AI bid writing and customer submission boundary(opens in a new tab)Across the bid lifecycle
Follow the work, stage by stage.
Compare the published scope with the work your team needs. A capability to verify is an evaluation question, rather than proof a product cannot do it.
Discover
Find the next opportunitySearch spans five named UK sources, with alert frequency varying by plan.
PSIP current plans and integration status(opens in a new tab)Search supported public procurement markets with Discover and receive company-specific monitoring through Intelligence.
Qualify
Decide where to investA scorecard combines fit, value, buyer history and incumbent context.
PSIP AI bid writing and customer submission boundary(opens in a new tab)Assess relevance, requirements and evidence gaps. A preliminary Intelligence recommendation is distinct from a complete tender-document audit.
Pursue
Shape the bid strategySpend, competitor and expiry intelligence can inform earlier engagement.
PSIP current plans and integration status(opens in a new tab)Bring in Zelius for pursuit sparring, bid strategy, specialist coordination and a scoped delivery plan.
Remember
Reuse company evidenceDrafts use tender and buyer data; demonstrate reuse of your own approved company evidence.
PSIP AI bid writing and customer submission boundary(opens in a new tab)Turn existing documents and diagrams into reusable company evidence. Select the sources for each bid, review proposed knowledge changes and carry company terminology and working instructions into later assignments.
Respond
Produce the actual filesThe workspace generates summaries, method statements, win themes, checklists and clarification questions.
PSIP AI bid writing and customer submission boundary(opens in a new tab)Give Ziva the buyer’s original files and the outcome. She can fill workbook cells, revise document content and layout, build calculations and prepare related Word, Excel, PDF and presentation deliverables.
Review and deliver
Move to approved outputPSIP explicitly leaves editing and submission with the customer.
PSIP AI bid writing and customer submission boundary(opens in a new tab)Keep source-scoped reviewers, comments and accepted document history beside production. Review and restore prior accepted versions. Zelius can handle separately agreed submission work with customer approval and authority.
Zephior combines separately purchasable software and managed services. Customer decisions, declarations, pricing and final approval remain with the customer. Product access and service scope follow the chosen plan and agreement.
Pricing and ownership
Price the work completed, not just the subscription.
PSIP
PSIP lists Essential £199, Growth £599 and Professional £1,199 per month excluding VAT. Growth adds bid drafting and the workspace; Professional adds integrations and faster alerts. Bid Agency and Enterprise are custom. Annual rates differ, and Growth advertises a 14-day trial. API export is marked coming soon, so confirm any required integration and the actual contract.
PSIP current plans and integration status(opens in a new tab)Zephior
Projects starts at CHF 500 per month for one Project Key, with unlimited users and company knowledge within one organization. Independent Intelligence starts at CHF 199 per month for one country. New software access starts paid with the published first-month money-back conditions. Zelius services have their own agreed scope and fees.
See current Zephior pricing ↗Compare the tier containing response work, source coverage, human preparation and submission responsibility.
Published prices are starting points, not like-for-like quotes. Confirm currency, taxes, billing period, scope and current terms with each provider.
Make the evaluation useful
Bring a tender your team knows.
Use a past submitted tender as a benchmark, or a suitable live package. Compare the evidence, the final output and the work left for your team.
Inspect a known UK tender
Verify the notice, changes, original documents and buyer history against the official source.
Test a company-specific gap
Use an absent reference or certificate. Check whether the draft identifies it and whether anyone is assigned to resolve it.
Complete the commercial response
Produce the buyer’s pricing workbook and supporting annexes alongside the narrative.
Assign delivery ownership
Define who edits, verifies, signs, uploads and stores the official submission confirmation.
Questions before you choose
A closer look.
Does PSIP write bids?
Yes. Growth and above advertise first drafts and bid workspaces; the product says customers edit and submit.
PSIP AI bid writing and customer submission boundary(opens in a new tab)Should Essential be compared with a full response purchase?
Only after adding the tools and people required for drafting, review and final preparation.
PSIP current plans and integration status(opens in a new tab)Sources and comparison method
Reviewed 19 October 2026. Competitor descriptions use the official product and pricing sources below. These are published capabilities, not results from a controlled product trial. Zephior publishes this comparison and has a commercial interest in your choice. Workflow recommendations are our assessment.
- PSIP UK procurement platform ↗(opens in a new tab)
- PSIP current plans and integration status ↗(opens in a new tab)
- PSIP AI bid writing and customer submission boundary ↗(opens in a new tab)
For Zephior’s current offer, see Ziva, Zelius and pricing. Ask us to demonstrate any requirement that is essential to your decision.
Your next opportunity
Bring the work.
See how far Zephior takes it.
Discuss your markets, a representative tender and the parts your team wants to hand over.