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sizeless

No surveyor. No special hardware. No weeks of drawing work.

We automate construction site documentation: From smartphone video to invoice-ready 3D Model in 72 hours.

Backed by
  • Y Combinator
  • NVIDIAInception Program
  • Google for Startups
  • Founders ofAgile Robots

Capture.

The construction crew films the open trench with a smartphone taking about ten minutes. 

Detect.

Every object in the scan is identified and labeled with type, diameter, material and position. The crew can add voice comments while filming. 

Model.

sizeless builds a sub-centimeter-accurate 3D model of the trench, its pipelines and fittings.

Integrate.

Survey-grade documentation including as-built 2D and 3D drawings and GIS data. We provide automated invoices from a short film. 

A crew of four and an excavator around an open trench in a city street
The problem

Maps went digital. Measuring is still done manually.

For contractors
  • Surveying requires a specialist and specialized hardware. This means coordination, multiple site visits, and potentially manual errors.
  • Regulations requires 2D and 3D measurements to issue invoices. Because of this customers wait around 6-9 months for their money.
  • Manual 3D measurements in space are hard and costly. 
For utilities
  • Each construction site coordinates with contractors, surveyors, and the engineering firm adding complexity. 
  • As-built drawings arrive months late and the Geographic Information System (GIS) is out of date. 
  • Once the trench is closed, the information is gone for decades. 
What measuring looks like today
  • GNSS rover
  • Total station
  • Measuring wheel
  • Folding rule
  • Tape
  • Laser meter
Our solution

Turn a smartphone video into survey-grade 3D records.

One person films the trench. sizeless automates the rest.

  1. Capture

    The construction crew films the open trench with a smartphone taking about ten minutes. 

  2. Detect

    Every object in the scan is identified and labeled with type, diameter, material and position. The crew can add voice comments while filming. 

  3. Model

    sizeless builds a sub-centimeter-accurate 3D model of the trench, its pipelines and fittings.

  4. Integrate

    Survey-grade documentation including as-built 2D and 3D drawings and GIS data. We provide automated invoices from a short film. 

72 h
from scan to results
1 visit
instead of repeat visits
7 mm
Proven accuracy
Technology

Built on a decade of robotics and physics research. 

  • Proprietary SLAM engine

    Survey-grade 3D from a smartphone recording, no extra hardware.

    3D reconstruction
  • Semantic layer

    Recognizes type, material and connections of every pipe.

    Recognition
  • Conversational AI

    Voice notes during recording are linked to the scan. No information is lost.

    Context
Work

Our customers

Civil engineering firms, district heating operators and utilities document their sites with sizeless.

  • Prantl RoppenPrantl Roppen

    Earthworks and pipelines

  • KlieweKliewe

    Pipeline construction

  • PfaffingerPfaffinger

    Network construction

  • FUG Fernwärme UlmFUG Fernwärme Ulm

    District heating

  • Hamburger EnergiewerkeHamburger Energiewerke

    Energy utility

  • IEP Innovative Energie PullachIEP Innovative Energie Pullach

    Geothermal district heating

  • Geothermie UnterhachingGeothermie Unterhaching

    Geothermal district heating

Only using a smartphone we turn months of manual surveying and playing into 72 hours. No surveyors, no hardware and a single source of truth. 

A humanoid robot working on a pipe inside an open trench
Vision

For crews today. For construction robots tomorrow.

Construction productivity has barely changed in decades. We generate the training data for construction robots. 

Read our manifesto

Team

Built on research. Proven in the trench.

Robotics and physics research from ETH Zurich to MIT applied to construction sites.

  • Cornelius Einem
    Cornelius EinemCo-Founder & CTO

    PhD in Robotics & Computer Vision, ETH Zurich.

  • Julius Schilling
    Julius SchillingCo-Founder & CEO

    Former Chief of Staff to the CEO of Aon.

  • Roger Belsunce
    Roger BelsunceCo-Founder & Academic Advisor

    PhD in astrophysics, University of Cambridge. Postdocs at UC Berkeley and MIT.