Problem

Civil-engineering and utility teams need reliable as-built records of open trenches, buried utilities, district-heating lines, and house connections, but the conventional process depends on manual sketches, specialist surveying, separate appointments, and fragmented documentation. That creates operational and financial drag: crews may have to wait before backfilling, construction errors can go unnoticed until a trench is closed, and final documentation and connection billing can arrive weeks late. The highest-value use case is capturing an open trench or house connection immediately before backfill so the team can document pipes, couplings, third-party utilities, and building entries in one pass.

Product / Service

sizeless provides an AI-assisted mobile reality-capture workflow. A project team uses its SiteScan app on an iPhone Pro to record a guided video at the excavation; algorithms developed at ETH Zurich then turn the capture into a high-resolution 3D point cloud, a standards-based 2D as-built CAD plan in DWG/DXF, and a 3D digital twin that can feed GIS or BIM workflows. The process is designed to use existing personnel, without specialist hardware or an additional surveying appointment.

The benefit is faster, more auditable documentation with less manual work and fewer data silos. Trenches can be backfilled immediately, errors can be identified before they are concealed, and earlier completion of revision documents can accelerate billing and cash flow. sizeless also presents a broader AEC offering that converts short smartphone videos into 3D models, floor plans, and BIM-ready outputs for planning, renovation, energy assessment, and facility management.

Market

sizeless competes in the AEC software market across AI-assisted surveying, mobile reality capture, construction as-built documentation, GIS/BIM data production, and digital twins. Its sharpest beachhead appears to be civil infrastructure—especially trenching, district heating, utility connections, and related field documentation—while its FAQ positions the underlying data layer for architects, engineers, designers, facility managers, appraisers, and energy consultants. Adjacent digital-twin and construction-capture competitors include SkyeBrowse, DroneDeploy, Matterport, OpenSpace, and Bentley iTwin, although sizeless differentiates around smartphone capture and direct CAD/GIS deliverables for trenches and house connections.

The company is early-stage but commercially oriented rather than merely conceptual: YC lists it as an active Summer 2023 company, and the company website says it is backed by Y Combinator and founded by engineers associated with ETH Zurich, UC Berkeley, and MIT. A LinkedIn company result reports a $500,000 pre-seed round from Y Combinator in October 2023, while sizeless's FAQ says customers provide ongoing product feedback. The available evidence does not quantify revenue, deployments, or customer count, so traction is best characterized as early and not publicly measurable rather than established at scale.