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NUL-G

Custom software for construction and infrastructure.

For contractors and equipment hire firms handling change orders, files and equipment across many projects at once.

No obligation · six questions · reply within one to two working days

Who we build for

  • Non-residential and residential construction
  • Infrastructure and civil engineering
  • Equipment, crane and aerial platform hire
  • Cables and pipelines

What is happening.

What is changing in construction and infrastructure.

  1. 01

    Work starts before the price is fixed

    Under the UAV-GC 2025, work may start before the price is fixed. Change orders that are not recorded and approved in time cost margin.

  2. 02

    Evidence for each construction stage

    Under the Wkb (Dutch Quality Assurance for Construction Act), you provide evidence for each stage to the quality assurer and the client. That is easiest on the spot.

  3. 03

    Service connections in the KLIC delivery

    By 1 January 2028, service connections must also be in the KLIC data package in digital form. The right data then has to reach the right crew.

  4. 04

    Many parties on one project

    Subcontractors, hire firms, quality assurer and client each work from their own lists. Arrangements between them run through email, messaging apps and phone.

Where it can be better.

Six processes from day-to-day operations in construction and infrastructure.

How it works now
Changes are agreed verbally on site and recorded later in an email or a report.
What could be better
Recording and approving changes on site, now that work may start under the UAV-GC 2025 before the price is fixed.

Demo company › Change orders

  • Havenkwartier project
  • Open
  • Awaiting client
  • Invoiced
Change orders, this project
€38,200
Not yet invoiced
€6,400
Started without approval
1
No.Change and locationReported byStatus1–8 of 14
MW-118Extra opening · grid line 4On interim invoice 3today
MW-119Different window frames · north elevationAwaiting pricetoday
MW-120Deeper foundation · grid line 7Started without approvalyesterday
MW-121Extra sockets · block AClient approvedMon
MW-122Provisional sum · tilingSettledFri
MW-123Lead roof edge · block BPhoto missingThu
MW-124Extra handrail · block BReported today2 w
MW-125Omission · dormer plot 12Settlement proposed3 w
Proposal

MW-120 started without approval. Price from the budget: €4,850. The written confirmation is ready for the client.The project manager sends the confirmation to the client.

Send confirmationAdjust

Example. Demo company; names and figures are fictitious.

All processes

The system proposes. You decide.

The system reads, checks and prepares. A person decides what happens.

Per process: what the system does and who decides
ProcessWhat the system doesWho decides
Change orders and omissionsWhat the system does: Change orders and omissions recorded on site, approved before the work starts. And invoiced before anyone forgets.Who decides: The project manager sends the confirmation to the client.
Wkb file and handoverWhat the system does: Evidence for each construction stage recorded on the spot, with photo and location. The file for quality assurer and client grows as you build.Who decides: The site manager checks, the quality assurer assesses.
Equipment and hireWhat the system does: Availability, transport, inspections and hours for each piece of equipment in one view. And every hour on the invoice.Who decides: The hire planner decides what is invoiced.
Crane and lifting planningWhat the system does: Cranes, inspections and operators in one schedule. Nobody operates a crane without a valid inspection or registration.Who decides: The crane planner approves the swap.
KLIC and excavationWhat the system does: The KLIC data package summarised on the crew’s phone. With the cables and pipes marked at the dig area.Who decides: The site manager releases the instruction to the crew.
Estimating and job costingWhat the system does: Actual hours set against the budget every day, per bill item. Adjust while the work runs, and the next estimate gets better.Who decides: The estimator sets the rate, the project manager adjusts course.

Compliance you can prove.

What the rules in construction and infrastructure ask, and what the system records.

Rules for construction and infrastructure: what the inspector asks and what the system records
RuleThe inspector asksThe system records
Wkb (Dutch Quality Assurance for Construction Act)Since 1 January 2024 for new builds in consequence class 1: a file for the building authority and the consumer.File for the competent authorityCompletion file with photos
UAV-GC 2025 (Dutch design-and-build contract terms)New contract terms for integrated contracts, since January 2025.Changes and change ordersChange orders with approval
Inspection of lifting equipmentMobile and tower cranes inspected at least every 24 months; operators registered with TCVT.Valid inspection per craneInspection and operator per crane
KLIC and WIBON (Dutch dig notification)Mandatory notice before digging; service connections available digitally by 1 January 2028.Excavation notice in advanceNotice per excavation job
For every sector
GDPRWho processes personal data, and whereData processing agreement, EU hosting with ISO 27001-certified partners
AI ActHuman oversight of AIEvery proposal with who approved it

Start here.

One process, one prototype. Then you decide.

Start with the change orders you record on site, or with the planning and inspections of your equipment.

  1. Step 01

    Conversation

    A process map

  2. Step 02

    Prototype

    A prototype

  3. Step 03

    Build

    A go or no-go per phase

  4. Step 04

    In operation

    Your code, your data

Systems you may already use

  • 4PS Construct
  • Syntess
  • Ibis (Aceve)
  • King
  • Bouw7
  • KLIC-viewer
  • MCS Rental

We connect to what is there, or build alongside it where the package is too heavy or too rigid.

Where we are not the right fit

The largest contractors with their own IT department are not our first focus. We build for mid-sized contractors and equipment hire firms, and for finishing trades with around 20 staff or more.

Questions.

About costs, time, integrations and ownership.

What does it cost?

Most systems we build cost between €10,000 and €40,000, one-off. Support is about 3 to 5% of that, per month. After the prototype you get a fixed price, before you sign anything.

How long does it take?

We set that after the prototype, per phase. We do not give a timeframe before then.

How much of our time does it take?

One owner who makes the decisions, and a few users who review and test during the build. We agree the exact amount per project.

Does it connect to our ERP and Microsoft?

Yes. Users sign in with their own Microsoft account and MFA. We set out in the proposal which ERP and file integrations are included.

Who owns the software?

You do. The rights transfer per phase, once that phase is paid. No licence.

Where is it hosted?

In the EU, encrypted: EU hosting with ISO 27001-certified partners.

Who maintains it?

We do, under an SLA. Or you do: the documentation is written for that.

People

  • Jelle Nodelijk, Partner · process and first conversation
  • Mike de Beste, Partner · build and technology
  • Jeroen Romeijnders, Partner · sectors and prototypes

You talk to the people who build it: Jelle, Mike and Jeroen. No account manager, no middleman.

About us

Show us one process that could be lighter.

Get a working prototype

No obligation · six questions · reply within one to two working days. Or get in touch