Yesper

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Entek × Yesper

Case Study

"We manage complex energy and installation projects. With Yesper, we maintain control over documentation without losing momentum in delivery."

The Company

Entek (Entreprenadteknik Stockholm AB) is a construction and installation company offering all types of electrical installations, control and regulation technology, energy and building contracts, as well as service—from smaller tasks to large, complex projects. Our clear goal is to deliver the highest quality on the market, precision in delivery, and exceptional service, with streamlined decision-making and high energy throughout our projects.

The Challenge

“In our larger projects, documentation is almost a standalone endeavor. Technical descriptions, change memos, self-checks, energy calculations, and agreements come from different sources - and everything ties together.”
- Emil Sigsjö, CEO Entek

“In our larger projects, documentation is almost an undertaking of its own. Technical descriptions, change memos, self-checks, energy calculations, and contracts come from various sources – and everything is interconnected.”
- Emil Sigsjö, CEO Entek

Electricity, control, energy, construction, and tenant adaptations were in separate folders, systems, and email threads – often in different versions.
The project team spent numerous hours getting acquainted with documents, double-checking requirements, and chasing information afterward.
Minor ambiguities in responsibility allocation between technical areas could lead to late changes, discussions about add-ons, and unnecessary extra work.

The Solution

Entek is implementing Yesper AI – an industry-tailored AI assistant designed for Swedish construction and infrastructure, capable of reading the entire project's documentation in seconds and answering questions with source references.

With Yesper, the project team at Entek could:

Upload entire project packages (PDF, Excel, drawings) and gain full knowledge of the project within seconds.
Keep track of new versions and what has changed.
Generate automated checklists and check them off with one click.
Save and summarize important decisions, interpretations, and reviews, making them reusable in future projects.

KPI

Before Yesper

With Yesper

Time for Procurement

Two weeks

4 days

Last-minute surprises in production

Multiple solutions for every project

0 since using Yesper

Leveraging Knowledge Reuse

Sporadic, limited to individual instances

Throughout the team, every project

"We work at the intersection of energy, electrical, control, and construction. Yesper helps us achieve a unified understanding of the requirements - no matter which document they happen to be in."

The Secret

Peter Blom, one of the founders of Yesper, explains: "During my time at Spotify, we redefined the rules for data-driven growth. With Yesper, we are bringing the same mindset to construction—with our own AI layer that truly understands the industry."

Industry-Trained AI – understanding building codes and document structures for accurate risk and compliance checks
RAG Engine with Source Referencing – each response is linked to the exact chapter in the document, ensuring that no inaccuracies are allowed.
Checklists & Autofill – reduces repetitive, administrative steps, freeing time for value-added estimations.

Next steps

Yesper is now rolled out to all projects to help Entek win more public contracts.

Ready to save days and win more business?

Benjamin Glaser

Chief Revenue Officer

Schedule a Demo

Our industry-specific AI is unique in being trained and configured for the Swedish construction and infrastructure sectors.

In-depth knowledge of AMA/AB/ABT, construction regulations, and industry terminology.
Handles millions of pages, Excel files, and drawings. Provides you with a knowledge graph of your project that is simpler and more comprehensive than BIM.
Library of prompts, templates, and checklists created by construction experts.

Our industry-specific AI is unique in being trained and configured for the Swedish construction and infrastructure sectors.

In-depth knowledge of AMA/AB/ABT, construction regulations, and industry terminology.
Handles millions of pages, Excel files, and drawings. Provides you with a knowledge graph of your project that is simpler and more comprehensive than BIM.
Library of prompts, templates, and checklists created by construction experts.

Our industry-specific AI is unique in being trained and configured for the Swedish construction and infrastructure sectors.

In-depth knowledge of AMA/AB/ABT, construction regulations, and industry terminology.
Handles millions of pages, Excel files, and drawings. Provides you with a knowledge graph of your project that is simpler and more comprehensive than BIM.
Library of prompts, templates, and checklists created by construction experts.

Tailored for Construction

Reliable Solutions

The system adheres to the correct source and never loses its way in internet hallucinations. You always receive references to understand how Yesper arrived at its answers.

Automatic checks against AMA/AB/ABT and national standards flag discrepancies.
RAG + rule engine, cross-references, multi-step verification, ensure accuracy.
References instead of hallucinations.

The system adheres to the correct source and never loses its way in internet hallucinations. You always receive references to understand how Yesper arrived at its answers.

Automatic checks against AMA/AB/ABT and national standards flag discrepancies.
RAG + rule engine, cross-references, multi-step verification, ensure accuracy.
References instead of hallucinations.

The system adheres to the correct source and never loses its way in internet hallucinations. You always receive references to understand how Yesper arrived at its answers.

Automatic checks against AMA/AB/ABT and national standards flag discrepancies.
RAG + rule engine, cross-references, multi-step verification, ensure accuracy.
References instead of hallucinations.

Safety and Privacy

We comply with GDPR and local data laws. We adhere to ISO 27001, ensuring robust cybersecurity and data protection.

No model training on customer data.
The customer owns and controls their data.
Enterprise-level security through Azure infrastructure.

We comply with GDPR and local data laws. We adhere to ISO 27001, ensuring robust cybersecurity and data protection.

No model training on customer data.
The customer owns and controls their data.
Enterprise-level security through Azure infrastructure.

We comply with GDPR and local data laws. We adhere to ISO 27001, ensuring robust cybersecurity and data protection.

No model training on customer data.
The customer owns and controls their data.
Enterprise-level security through Azure infrastructure.