It answers questions about a project and helps write its reports — from the project’s own documents, without inventing facts.
Engineering consultancies run on reports — geotechnical, civil, structural, traffic and more. Writing them is slow, repetitive work that most engineers don’t especially enjoy.
AI is not coming to this work; it is already here. Junior engineers are using AI to help them write, whether their firms encourage it or not. The trouble is they are using general-purpose chatbots that are not built for engineering. Those tools invent numbers and facts, produce pages of unnecessary text, and miss the context an engineering report needs. The result lands on a senior engineer’s desk as text that has to be heavily checked and rewritten — a real liability, and a real time sink.
Harvey is an AI assistant built specifically for lawyers. Law is one of the hardest industries to bring AI into: the work is high-stakes and confidential, and the profession is conservative and risk-averse — a wrong or invented answer can be a serious liability. Harvey won that industry over by building trust rather than novelty: it works from a firm’s own documents, shows its sources, and is tuned to legal work instead of being a general chatbot.
It also started simply — leading general-purpose AI models combined with document retrieval, with no expensive custom training up front. That was enough to prove the concept and win over major firms; only later, as it grew, did it invest in custom-trained models. Today Harvey is used across many of the world’s largest law firms, including firm-wide rollouts of thousands of lawyers. It has reportedly reached around US$300 million in annual recurring revenue, was valued at roughly US$11 billion in early 2026, and is expanding into neighbouring professions such as tax and accounting.
And Harvey is not a one-off. The same pattern — an AI built for one profession, earning trust where general tools can’t — is repeating in other document-heavy fields:
Engineers are already adopting AI quickly, but with the wrong tools — most knowledge workers now use AI at work, the majority on their own general-purpose apps with little firm oversight, and that pull is sharpened by flat fees and a deepening senior-engineer shortage. On the supply side, a few early companies build pieces of this — some answer questions over project documents, others draft a single type of report — but none yet combine project knowledge, question-answering and multi-discipline report writing with the trust controls engineering work demands. And the model is already proven next door: vertical AI for law, accounting and medicine has produced several multi-billion-dollar companies in barely two years.
Most knowledge workers already use AI at work — the majority on their own unapproved general-purpose tools, with little firm oversight (Microsoft, 2024).
In the UK, major firms (Stantec, Buro Happold) are already adopting an early AI report drafter, SchemeFlow — more proof engineers want this. The complete version is still unbuilt.
Vertical AI for law (Harvey ~US$11B), accounting (Basis ~US$1.15B) and medicine (Abridge ~US$5.3B).
Australian engineering consulting is an ~A$18 billion industry — and the same product can expand to other markets.
Gesher is an AI built for engineers. From a project’s own documents it does two connected things — answers questions about the project, and helps write the reports — both without inventing anything.
Most engineering consultancies are cautious with new technology. Today, the only AI most of their staff can use is Microsoft Copilot, restricted to whatever underlying models the firm has allowed. Those are general-purpose tools: they hallucinate, they aren’t built for engineering work, and they give the firm little control over how confidential project data is handled.
Never invent a value, always flag uncertainty, no storytelling. Not guidelines on top — the system is built around them so it can’t quietly break them.
Runs inside the client’s own environment. Data never leaves, never trains a model, never mixes with another client’s — fitting obligations firms already work under (e.g. ISO 9001, ISO 19650).
Purpose-made for the job — not a general chatbot adapted to it.
Me — an engineer who spent several years in design — with the idea, the research, and an early build. I’m looking for a co-founder and a small team to build it with me: