Zephior vs TenderStrike
Take the technical bid through to the original files.
Choose Ziva when your team wants flexible production across original documents, calculations and supporting deliverables. TenderStrike also combines technical analysis, quantities and drafting. Compare the actual file assignment while keeping specialist takeoff and estimation requirements explicit.
Where Ziva makes the difference
Get more of the work off your team’s desk.
Delegate the package around technical analysis
Ziva can complete the original workbook, revise the methodology and prepare annexes or slides. She can change formulas, tables and layout in the files. Your team can review the resulting package rather than manually assembling it after the analysis and drafted sections.
Keep technical evidence close to production
Use existing diagrams and documents as reusable company knowledge, with supported drawing and model previews for specialist review. Retain company terminology and preparation instructions across bids. This supports the response workflow without claiming that file manipulation certifies an estimate or engineering design.
Control revisions across the team
Source-specific reading, editing and review access keeps sensitive evidence scoped, while accepted document history supports recovery. Ziva can create an editable readiness board or risk register beside the files. Compare that working loop with TenderStrike’s actual template, version and technical-analysis scope.
Where each fits
Start with the job you need done.
Consider TenderStrike for
Construction and technical teams seeking connected analysis, quoting, company memory and drafting.
Choose Zephior for
Teams needing response software or a scoped partner to prepare the agreed tender package.
Construction economics is part of the workflow
TenderStrike describes quantity extraction, drawings and price-library context.
TenderStrike construction workflow and quoting(opens in a new tab)Analysis includes changes and contradictions
Templates, source access and version comparison support document review.
TenderStrike analysis and version comparison(opens in a new tab)Drafting reuses company methods
Past references, certifications and technical content inform response production.
TenderStrike knowledge-grounded response production(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 opportunityDiscovery matches opportunities to the company profile. Confirm the actual source markets.
TenderStrike construction workflow and quoting(opens in a new tab)Search supported public procurement markets with Discover and receive company-specific monitoring through Intelligence.
Qualify
Decide where to investTender documents are analyzed for requirements, inconsistencies and changes.
TenderStrike analysis and version comparison(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 strategyQuoting and subcontracting inputs can support commercial planning.
TenderStrike construction workflow and quoting(opens in a new tab)Bring in Zelius for pursuit sparring, bid strategy, specialist coordination and a scoped delivery plan.
Remember
Reuse company evidenceHistorical methods, references and company knowledge feed drafts.
TenderStrike knowledge-grounded response production(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 filesTechnical writing, response structure and missing-information checks support production.
TenderStrike knowledge-grounded response production(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 outputMulti-format export supports handoff; agree customer approval and the official submission action.
TenderStrike knowledge-grounded response production(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.
TenderStrike
TenderStrike lists Self-service at €690 per month billed annually (€8,280 per year), with a €1,190 monthly reference price. It includes up to ten users, 8GB indexed workspace and 300,000 monthly processing credits; tender consumption varies. There is no free trial. Enterprise is custom and can start with a pilot. Confirm extra credits, taxes and the selected term.
TenderStrike current plans and processing rules(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 construction-specific analysis, processing capacity and the expert work required to complete the tender.
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.
Use a construction pack with drawings
Inspect extracted quantities and ambiguities with the estimator responsible for the offer.
Review an amendment
Check that changed requirements affect both the technical narrative and commercial assumptions.
Trace a method statement
Verify that reused references and certifications belong to the company and fit the project.
Agree the finished output
List the technical response, pricing sheets, declarations and preparation responsibilities before purchase.
Questions before you choose
A closer look.
Is TenderStrike only an analysis tool?
No. Discovery, quoting, knowledge and drafting are also explicit parts of its offer.
TenderStrike construction workflow and quoting(opens in a new tab)Does document production validate construction costs?
No. The quantities, rates and commercial commitments need their responsible company owners.
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.
- TenderStrike construction workflow and quoting ↗(opens in a new tab)
- TenderStrike analysis and version comparison ↗(opens in a new tab)
- TenderStrike knowledge-grounded response production ↗(opens in a new tab)
- TenderStrike current plans and processing rules ↗(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.