Capture every variation your correspondence has already created.
Ask ARK and it checks every instruction, client comment, RFI reply, and revision against the contract, spec, BOQ, and drawings. Anything that adds scope comes back with the evidence already attached, so you get paid for the work you are asked to do and the client relationship stays on solid ground.
Request a DemoThere is margin in the work your team already does every day.
Every client comment, RFI reply, and instruction your technical team handles carries commercial information. With ARK reading alongside them, that information reaches the commercial team with the evidence attached. Your team earns that value by working the way they already do. ARK connects the signal.
Best for
Commercial Directors · Contracts Managers and Quantity Surveyors · Technical Managers, at main contractors and specialist subcontractors.
For leadership
For commercial leadership: entitlement captured with the instruction that created it, claims built on contemporaneous evidence, and margin protected without escalating a single dispute.
Every instruction checked against the contract.
ARK reads incoming instructions, client comments, RFI replies, and rejected submittals against the contract, spec, BOQ, drawings, and prior records. Anything that may be additional work comes back for commercial review with the evidence already assembled. Your technical team surfaces the commercial signal in every instruction, without changing how they work.
What you get
- Variations identified with the instruction that caused them
- Claims built on contemporaneous, cited evidence
- Recovered entitlement that adds up across the portfolio
- Technical and commercial teams working from the same record
Respond to every rejection from a defensible position.
Some rejections are valid; others introduce requirements that were never in the contract. ARK checks each rejection reason against the contract, specification, EIRs, codes, and prior project records, and presents a cited position: valid, introduces new scope, or ambiguous. Your team makes the final judgment quickly and confidently: comply where it is right, raise the variation where it is owed, and keep the client relationship on solid, factual ground.
What you get
- A defensible position on every rejection
- Scope introduced by rejection captured as variation
- Margin protected without disputes escalating
A ranked list of the changes that matter, not a thousand visual differences.
Comparison tools highlight every visual difference between revisions; most are immaterial. Ask ARK and it reads each change in context, against the spec line, BOQ item, RFI, schedule activity, or compliance requirement it touches, and returns a ranked list of commercially material changes. A relabeled door tag stays a footnote. A changed fire rating, a moved structural member, or a removed BOQ line comes back with the downstream items it affects named.
What you get
- Review time focused on cost, scope, compliance, and programme
- Variation candidates surfaced with citations
- Downstream items named, so nothing is missed by omission
- Senior sign-off rests on a known-complete review
What runs today, and what comes next.
What ARK does today
Ask about an RFI reply, a client comment, a rejected submittal, or a month of correspondence, and what crosses into additional scope comes back with the instruction that caused it, cited to source.
What Sentinel adds next
Watching the correspondence stream so the question does not have to be asked is what Sentinel adds next: watch packs that keep asking it for you, alerts when an instruction changes scope, and propagation of the knock-on effects into cost and programme.
Reads the systems your project already runs
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Variation Intelligence questions
The other three workflows
Protect the margin you have already earned
Got a live project? Bring it. We will read your correspondence against the contract and show you what we find.