Civil Engineering

sizeless surveys house connections & trenches with AI

sizeless delivers an AI-powered workflow for civil engineering — precise 3D twins of open trenches and house connections, directly for GIS and CAD.

sizeless 3D point cloud of an open trench
Backed by
Y CombinatorETH ZurichUC BerkeleyCambridgeMIT
Benefits for Network Operators

From video to CAD plan - for civil engineering, district heating, and house connections.

Accelerate Construction & Billing

Trenches are backfilled immediately after the video - no waiting for separate surveying appointments. Complete documentation is available weeks earlier, enabling faster billing and cash flow.

Fast documentationDWG / DXFInstant backfill

Quality & Audit-Proof Documentation

Continuous 3D evidence including third-party utilities and house entries (works without GPS in basement areas). Eliminates manual sketches and data silos - construction errors can be identified before backfilling.

3D point cloudGIS-readyAudit-proof

Process Autonomy

Technicians document house connections independently via smartphone. Existing internal or external teams can handle a higher project volume through efficient workflows.

iPhone ProNo specialistsHigher throughput
From Video Directly to CAD Plan

AI-powered workflow for civil engineering - from smartphone video to compliant revision documentation

  1. Step 01

    Trench Capture

    Standardized capture via iPhone Pro directly at the excavation - no special hardware, no extra appointments. Carried out by the existing project team.

  2. Step 02

    3D Point Cloud

    Algorithms developed at ETH Zurich generate a high-resolution 3D point cloud of the open trench - centimeter-accurate.

  3. Step 03

    2D CAD As-Built Plan

    Industry-standard as-built plans (DWG/DXF) for revision documentation. Couplings and pipes are quickly identified - measurement extraction simplified.

  4. Step 04

    3D Model & GIS

    Digital twins of the pipe route including house entries. Seamless integration into GIS systems for future-proof planning and maintenance.

Outputs

One capture. Every output.

A single smartphone scan produces every deliverable your team already works with — ready to drop into existing tools.

Centimeter-accurate point cloud

High-resolution 3D reconstruction of the scanned space. Objective basis for earthwork volumes, dimensions, and audit trails.

On-site

Scan with SiteScan — the sizeless iPhone app

Your field team captures properties, trenches, and technical rooms in minutes using a guided iPhone Pro workflow. No extra hardware, no specialist training.

Download on the App Store
SiteScan iPhone app
Team

Founded by engineers from ETH Zurich, UC Berkeley and MIT

Backed by
Y CombinatorETH ZurichUC Berkeley

We're always looking for talented people

Cornelius
Cornelius
Co-Founder & CEO
Julius
Julius
Co-Founder & CEO
Roger
Roger
Co-Founder
Alex
Alex
Software Engineer
Request an In-Person Demo

Request an In-Person Demo

Interested in seeing sizeless in action? Schedule a personalized demo at your property.