Yesper
Yesper is an applied-AI platform for Nordic construction and infrastructure teams. It reads project documents, checks them against Swedish standards such as AMA, PBL and AB 04, and runs specialist agents that produce finished deliverables.
What is Yesper?
Yesper is an applied-AI platform for the construction and infrastructure sector, published by the Swedish company Omiwato Ventures AB and aimed squarely at the Nordic market. It is built around two layers. The first is The Assistant, a conversational surface that answers questions across a project's own files, the organisation's reference libraries and Swedish authority databases, returning sourced answers with the exact file, page and row. The second is The Workforce: a fleet of more than thirty specialist agents that read a project, build their own task list and execute it, coordinated by an orchestrator that routes work, delegates sub-tasks, runs them in parallel and, on difficult calls, consults an independent model from a second provider.
What sets the product apart from a general assistant is the domain layer. Yesper claims built-in knowledge of the Swedish construction stack: the AMA code families (Hus, Anlaggning, EL, VVS & Kyla), Boverkets byggregler, the Planning and Building Act, and the AB 04 and ABT 06 standard contracts. Queries expand automatically across Swedish trade terminology, so a search for ventilation also reaches VVS, luftbehandling and V-ritningar. Eight Swedish authority data sources are integrated for live lookups, among them SGU, SMHI, Trafikverket, Naturvardsverket, Lantmateriet and the Allabolag company register.
File coverage is unusually heavy for an AI tool: PDF, Word, Excel, PowerPoint, email, images with OCR tuned for Swedish scanned documents and handwriting, IFC building models and DWG drawings. A code environment works programmatically inside the original file structure, so spreadsheet formulas, document form fields and slide objects are edited in place. The platform keeps long-lived memory: an organisation-wide workspace profile, a per-project brief, automatic phase detection, indexed files and traceable agent threads.
Yesper is sold as much as an engagement as a licence. A three-stage programme covers discovery workshops, deployment of workflows and integrations, and adoption work including training and a champions programme. The publisher also builds bespoke capabilities. Twelve Nordic organisations are named as customers on the site, including AFRY, COWI and NRC Group.
What it does
- Search across millions of pages, drawings and spreadsheets, with the exact page and row cited on every answer
- Review deliverables against regulations and standards such as PBL, Miljobalken, AMA and AB 04 in a single pass
- Extract and total quantities from IFC models, DWG drawings and PDF plans, with cost breakdowns and source references
- Compare contracts, tenders and drawings side by side, with word-level redlining
- Query Swedish authority sources such as SGU, SMHI, Trafikverket and Lantmateriet from one conversation
- Produce reports, spreadsheets, specifications and presentations, in free form or in company templates
- Fill real PDF, Word and Excel forms down to the individual cell, and chain the whole thing into scheduled workflows
When to use Yesper / When not to
A quick filter to help you decide if Yesper is the right fit.
When to use Yesper
- Contractors preparing tenders, who need every requirement in a procurement package surfaced and answered before submission
- Consulting and engineering firms whose deliverables are document-heavy: reviews, technical descriptions, specifications and compliance work
- Estimators and quantity surveyors extracting quantities from IFC models, DWG drawings and PDF plans
- Asset owners and operators who want recurring work codified into repeatable, auditable routines
- Design and site managers coordinating across disciplines, tracking revisions, deviations and variation orders
When not to use Yesper
- Consumers and private individuals: the terms restrict the service to business use and exclude consumer contracts outright
- Organisations working outside the Swedish regulatory frame, since the built-in knowledge covers AMA, BBR, PBL, AB 04 and Swedish authority data sources
- Teams that need a mobile or offline tool: access is browser-based only, with no iOS, Android or desktop application
- Buyers who require published pricing before a sales conversation, as no figures appear anywhere on the site
- Projects handling material classified under the Swedish Protective Security Act, which the terms forbid uploading
How to use Yesper
A typical end-to-end flow, from setup to results.
- Request pricing through the three-step form on the pricing page: organisation type, company size, then contact details
- Or book a 45-minute introduction call directly through the scheduling link published on the site
- Take the scoping call, then a demo run on the kind of work your own team actually does
- Receive a quote for a right-sized starting point, along with a projection of what a full rollout would cost
- Run the discovery phase: workshops with three to five people including an executive sponsor, with your documents loaded into a configured workspace
- Connect the systems you already use, typically SharePoint, Teams, OneDrive and Dalux, with single sign-on through Microsoft Entra ID
- Sign in to the web application and start asking questions across the indexed project files
- Save a useful task as a prompt, turn it into a checklist, promote it to a routine and then to a production workflow
- Create agents by naming a role, a project and a focus, using pre-set answers or your own wording
- Lean on the public help centre and the in-product assistant for guidance, with support reachable inside the application
Pros & Cons
Pros
- Genuine vertical depth: the Swedish regulatory and terminology layer is built in rather than prompted on top of a general model
- Traceability is treated as a feature, with a full provenance chain of file name, page, row and document type on every answer
- EU data residency is stated precisely, down to the named Azure region and the location of each sub-processor
- Unusually complete and recent legal documentation: terms and DPA dated 3 September 2026, privacy policy 7 August 2026, versioned sub-processor list
- A public data processing agreement with an annual audit right and a fourteen-day objection window on new sub-processors
- A published technical architecture page describing the orchestrator, the agent fleet and the infrastructure in real detail
- Heavy industry formats are actually handled, including IFC, DWG and scanned drawings through OCR, with single-tenant deployment available
Cons
- No public pricing at all: the pricing page is a quote form, with no figures, no tiers and no way to gauge cost without a sales call
- No free plan and no free trial are announced anywhere on the site
- The Swedish focus is also the ceiling: the standards, terminology and authority data sources are all Swedish, which limits value elsewhere
- ISO 27001 and SOC 2 Type II are displayed as badges on the homepage, but no report or certificate is published and the privacy policy offers attestations only on request
- No public API documentation exists, although a REST gateway and an MCP server are described in the architecture and reserved for authenticated enterprise customers
- The public terms carry no service level commitment: availability is on a best-efforts basis unless a customer agreement says otherwise
- A very young company, incorporated in 2025, with no internet archive history and liability capped at fees paid over twelve months
Pricing & Plans
No free plan and no free trial are announced, and no price is published. Yesper is sold entirely on quotation: the pricing page is a three-step qualification form covering organisation type, company size and contact details, after which the vendor promises a scoping call, a demo on the customer's own kind of work, and then a quote for a right-sized starting point together with a projection of full rollout cost. The structured data embedded in the site declares Swedish krona as the offer currency but carries no amount, so no starting price, currency or billing unit can be stated. Professional services such as implementation, training and custom development are contracted separately from the platform subscription. The terms note that fees are set in the customer agreement or order form, that price changes take effect only at renewal, and that late payment carries statutory Swedish interest.
Data, GDPR & hosting
A consolidated view of how Yesper handles your data.
GDPR overview
Implementation is concrete and documented. The publisher identifies itself as Omiwato Ventures AB, registration number 559518-7674, registered in Sweden. The privacy policy, dated 7 August 2026, lists the legal bases by article (6(1)(a) to 6(1)(f)), enumerates data subject rights with their articles, sets a one-month response window under Article 12, names the Swedish supervisory authority (IMY), and covers transfers outside the EEA through Standard Contractual Clauses and adequacy decisions. A data processing agreement is published, as is a named sub-processor list, with a fourteen-day objection window and an annual audit right. Two limits: no Data Protection Officer has been appointed, which the policy states plainly, and the classification of the AI features as not high-risk under the EU AI Act is the vendor's own.
Who owns the data?
The customer keeps ownership. The terms state that Customer Content covers everything uploaded or synced into the platform, plus the apps, files and configurations built inside it, and that this content belongs to the customer, who can export it at any time during the subscription. Omiwato Ventures AB receives only a worldwide, non-exclusive, royalty-free licence limited to hosting, copying, processing, transmitting and displaying that content in order to provide, secure and support the service. The reverse also holds: the platform, software, models, model weights and base prompts remain the vendor's. Under the GDPR the customer is controller of Customer Content and Yesper acts as processor, governed by the published data processing agreement.
Reuse rights
Within the licence granted to Yesper, customers remain free to reuse their own content as they see fit: it stays theirs, it can be exported at any point during the subscription, and no permission is needed to use, publish or commercialise it. Two limits are worth noting, and neither concerns ownership. First, the customer is responsible for the legality and accuracy of what is uploaded and must hold the rights and consents needed to submit it. Second, the terms disclaim any warranty that AI output is free of third-party intellectual property claims, and ask the customer to review output for such issues before publication or commercial use. Yesper's own use of the data is narrow: content is processed to deliver the service, and it is not used to train, fine-tune or improve any model made available to third parties without explicit prior written consent.
Data retention & training
Hosting summary
Customer data sits in the European Union. The primary infrastructure is Microsoft Azure in the Sweden Central region, contracted through Microsoft Ireland Operations Limited, covering databases, file storage, AI model hosting, messaging and search. Additional model hosting runs on Google Cloud Vertex AI in Belgium, the Netherlands or Finland via Google Cloud EMEA Limited, where prompts and responses are not used to train or improve models. Authentication runs through Auth0 and support tooling through Intercom, both on EU servers. The site states that data never leaves the EU or EEA and that all model inference is routed through Azure rather than public model APIs; the privacy policy phrases it slightly more cautiously, saying data is processed and stored within the EEA wherever practicable, with Standard Contractual Clauses and supplementary measures covering any transfer beyond it. Storage is Azure Blob, each organisation gets its own Cosmos DB, and single-tenant deployment is available to enterprise customers. Note that the marketing site itself resolves to a Fastly anycast node in the United States, which says nothing about where customer data lives.
Things to keep in mind
Risks and trade-offs to weigh before adopting Yesper.
- Automation bias is the central risk: the terms themselves warn that AI output may be inaccurate, incomplete or hallucinated, and that it is not professional engineering advice. A compliance matrix that looks finished still needs a qualified human to sign it off
- Erosion of expertise over time. If tender review, quantity takeoff and standards checking all migrate to agents, junior engineers may stop building the judgement that lets anyone catch the machine's mistakes
- Certifications are displayed but not published. Treat the ISO 27001 and SOC 2 Type II badges as claims until you have seen the actual reports, which the privacy policy supplies only on request
- Uploading whole project archives concentrates commercially sensitive material, including bid pricing and subcontractor quotes, in one third-party system. The terms explicitly forbid uploading anything classified under the Swedish Protective Security Act
- Commercial dependency builds quietly. Organisational memory, templates, prompts and routines accumulate inside the platform, and the value of that accumulation is also the cost of leaving it
- The absence of published pricing makes cost governance harder: with quotes negotiated case by case, there is no benchmark to compare against and no way to anticipate renewal increases
- Background and scheduled execution means agents act without anyone watching. Cost guardrails exist, but work produced overnight still lands on a deliverable someone will be held responsible for
Setup & Integrations
Technical difficulty
Low for the end user, structural for the organisation. There is no self-service signup: entry runs through a quote and a scoping call, after which the vendor loads your documents and configures a workspace during a discovery phase involving three to five people and an executive sponsor. Connecting SharePoint, Teams, OneDrive, Dalux and Entra ID single sign-on is IT work on the customer side. Once running, day-to-day building is deliberately no-code: agents are created by naming a role and a focus, checklists import from existing Word or Excel files, and workflows use a drag-and-drop builder. Training and change management are sold as part of the engagement.
Deployment
Integrations
Supported languages
Behind Yesper
Social
Resources
All the official URLs gathered for verification and reference.
Alternatives
Tools that compete with or complement Yesper.
Frequently asked questions
What exactly is Yesper?
How much does Yesper cost?
Is there a free plan or a free trial?
Where is customer data hosted?
Are my documents used to train AI models?
Which standards and file formats does it handle?
Does Yesper offer an API?
Is there a mobile application?
Is a data processing agreement available?
What law and jurisdiction apply?
Should you pick Yesper?
Yesper is one of the more convincing vertical AI products to look at closely, precisely because it does not try to be general. The Swedish regulatory layer, the eight authority data integrations and the handling of IFC, DWG and scanned drawings are the kind of work a horizontal assistant will not do, and the published architecture page shows an orchestrator and agent fleet described in more detail than most vendors are willing to offer. The legal and governance dossier is stronger than the company's size would suggest: a public DPA with an audit right, a named sub-processor list with locations, a clear non-training commitment repeated across three documents, and EU data residency stated down to the Azure region.
The counterweights are real. Pricing is entirely opaque, with no figures, no tiers and no self-service entry, so no buyer can position themselves without a sales conversation. The ISO 27001 and SOC 2 Type II badges on the homepage are not backed by any published report, and the privacy policy offers attestations only on request. The classification of the AI features as not high-risk under the EU AI Act is the vendor's own. There is no service level commitment in the public terms, liability is capped at twelve months of fees and excluded entirely where none were paid, and disputes go to arbitration in Stockholm rather than to a court. The company itself was incorporated in 2025 and has no archived web history.
For a Nordic contractor, consultancy or asset owner drowning in project documentation, this is worth a demo. Ask for the certification reports, the service levels and the API terms in writing before signing.
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