Accounting · Legal · Consultancy
Automation for professional services firms
Purpose-built automation for firms that run on documents, deadlines, and client trust — accounting, legal, consultancy, and the SMBs who work the same way.
One request. The rest runs itself.
An enquiry, a client upload or 07:00 on a weekday starts the run. The system checks, files, books and reports in the software you already use, and asks a person where judgement is needed.
Connected to your software. No migration. It runs inside the tools you already use.
A person on the steps that matter. Approvals go to the right partner before anything is sent.
Every step on record. You see what ran, when and why.
Example · fictional firm
Enquiry from the website
Peter van Dijk · Van Dijk Accountancy · WordPress form
Log
HubSpot · Contact and deal created
HubSpot · Checked against your ideal client: a fit
Cal.com · Three times offered for an intro call
Microsoft 365 · Reply to Peter drafted
Waiting for AnneApproveApproved by AnneMicrosoft 365 · Reply sent to Peter
6/6Sent
A clear path from idea to launch.
From your first conversation to a working automation, every step is mapped out in advance — no surprises, no guesswork, live within four weeks.
Step 01
Discover
We learn where your team loses the most time.
Company analysis, ICP definition, and process or data mapping
Step 02
Design
We design the exact automation your workflow actually needs.
Process flows, data mapping, and integration points defined before building
Step 03
Build
We build your automation around your existing tools.
Development, API integrations, and testing within your current software
Step 04
Launch
Your automation goes live, fully tested and ready to use.
Deployment, QA, and handover to your team within four weeks
Step 05
Improve
We monitor and improve the automation as your needs change.
Ongoing monitoring, performance tuning, and updates
Five services, built to run themselves.
Start with a brand and website built to win clients, then automate how you find, serve, bill, and report. Your firm grows; your admin doesn’t.
A brand clients actually trust. A new identity, a website built to convert, and a Google profile that gets your firm found locally.
Explore the serviceExample · fictional firm
5/5Call booked
Example · fictional firm
5/5Call booked
Case study · Energielabel Breda
A website that earns its own label.
From 3 pages to 20+, live on 14 October 2026. Energielabel Breda is a one-person business run by Jan-Willem Ooms: energy labels, building inspections and sustainability advice in Breda and the surrounding area.
- Pages
- 3→20+
Old sitemap (April 2026) vs new site (October 2026)
- Performance, mobile
- 92
- SEO
- 100
- Accessibility
- 96
Google PageSpeed Insights, homepage, 15 Oct 2026
- Largest Contentful Paint, mobile (was ±6.6 s)
- 2.2–3.4 s
Lab measurement (local Lighthouse) during the speed fix after launch, 14–15 Oct 2026
Business results first. Then the technology.
I’m Nick Smid, founder of Assembly Engine. I build systems that create results for professional services firms: from the brand and website that form your foundation to the automations that run your admin.
Made for professional firms
We already know your deadlines and processes.
Built around your workflow
We first map how your team works today, then build around it.
Works with your software
No migration. We connect the tools you use.
We run it for you
We monitor every automation and adjust it when your work changes.
Confidential by design
Client data is protected in every build.
Example: a weekday at 07:00
- Reporting
Week 43 summary
Microsoft 365 · to 3 partners
Sent · 07:00
- Invoicing
Invoice 2026-0142
Jansen Logistiek · € 1,264.45
Sent · 07:00
- Acquisition
Follow-up Visser Transport
HubSpot · Anne · Friday
Queued · 07:00
Built around your firm. Hours back.
We assemble the system around how your firm already works. Then it runs on its own, so the work is done before you start.