stl-training.co.uk

STL Training is a London-based learning and development provider offering instructor-led courses in two broad areas: workplace software skills (Excel, Power BI, Microsoft Office, Copilot and ChatGPT) and people skills (soft skills, management, leadership, sales and customer service). Courses run as public scheduled sessions in face-to-face or online classrooms, and as on-site training for organisations. It is a fit if you want short, skills-focused courses with published dates you can book individually; it is less suited if you need accredited qualifications or a fully customised long programme, since the site presents standard course titles rather than bespoke curricula.

Course areas

The site organises its catalogue into distinct streams:

The site states it offers "70+ courses" in the professional development area and "50+ courses" in management, so the catalogue is broad rather than deep in any single niche.

Delivery formats

• Public scheduled courses — instructor-led, available face-to-face or in online classrooms, with dates you can view and book. The site says public courses are "never cancelled."
• On-site training — delivered at the client's location, described as "proven reliability."
• Reach — London-based, with delivery described as UK-wide and in 85+ countries.

Scale and quality signals

The site publishes several performance claims: 99.26% of training objectives met, 98.3% customer recommendation, "transparent quality control," and 109,332 searchable testimonials. These are the provider's own figures, so treat them as marketing claims to verify — for example, by reading testimonials for a course close to your needs or asking for references before booking on-site training. One quoted review comes from a Learning & Development Manager at the Home Office, which suggests some public-sector client experience.

How to decide

• Choose STL if you want a bookable public course in Excel, Power BI, Office tools, AI/Copilot, or management and soft skills, delivered in London or online, and you value a wide menu of short courses.
• Look elsewhere or ask first if you need accredited certification, a multi-month development programme, or heavy customisation — the site's presentation centres on named standard courses.
• Next step: check the schedule for your course and format, confirm the level (e.g. Excel Advanced vs. Advanced for Power Users) matches your current skill, and for organisational bookings request a callback via the number listed on the site to discuss on-site delivery.

STL Training (stl-training.co.uk) is a London-based learning and development provider that delivers face-to-face and online instructor-led training across the UK and in more than 85 countries. You can reach it by phone at 0207 987 3777 or by using the Request Callback option on the site; the site also has Contact Us, About Us and Resources sections, and a sign-in and basket system for booking courses online.

How to get in touch

The site lists two direct contact routes:

• Phone: 0207 987 3777, described on the site as a line for assistance.
• Request Callback: a form-based option for the provider to call you back.

For anything beyond a quick question, the Contact Us page is the place to start, and the About Us and Resources sections give background on the company and its materials. The site also includes sign-in and basket features, which indicates that courses can be selected and booked through the website itself.

Where training is delivered

The site positions itself as "London based with a global reach," so the same course catalogue is offered both to local UK clients and to organisations operating internationally.

What you can ask about

The catalogue spans several areas, which helps you route your enquiry:

• Excel and Power BI – from Introduction through Advanced, plus VBA, PivotTables, PowerPivot, financial modelling and forecasting and data analysis.
• MS Office and Microsoft 365 – including Copilot, PowerPoint, Access, Word, MS Project, SharePoint, Outlook, Visio and Teams.
• Copilot, ChatGPT and AI – introductory through advanced Copilot courses and ChatGPT courses for professionals and decision makers.
• Professional development – time management, presentation skills, communication, minute-taking and assertiveness, among 70+ courses.
• Management and leadership – introductory management, managing remote teams, mentoring, managing change and leadership development, among 50+ courses.
• Sales and customer service – customer service excellence and account management.

If you are unsure which level fits, the course listings distinguish introductory, intermediate and advanced tiers, so you can name the level when you call or submit a callback request.

Practical points before you contact them

• Public courses are stated never to be cancelled, which matters if you are booking around a fixed work commitment.
• Quality figures are published on the site — 99.26% of training objectives met and a 98.3% customer recommendation rate — and can be raised directly if you need evidence for a procurement or budget case.
• Testimonials are searchable, with the site citing 109,332 of them, so you can look for feedback from a comparable role or sector before committing.

The site does not publish prices or state whether booking requires an account, so confirm costs, available dates and any access requirements when you call or request a callback.

STL Training reports three headline quality figures on its site: 99.26% of training objectives met, 98.3% customer recommendation, and a claim that public courses are never cancelled. It also points to 109,332 searchable testimonials and cites a Home Office Learning & Development Manager among its reviewers. These are the provider's own published claims, so treat them as a starting point for due diligence rather than independent verification — the testimonials are the part you can actually go and read.

The headline metrics and what each one tells you

The "never cancelled" commitment matters most for individual bookings. If you are sending one person on a public scheduled course, a cancellation costs you a rearranged diary; a provider that guarantees the date removes that risk. For on-site training the site describes "proven reliability" but gives no comparable figure.

Reading the testimonials as evidence

The testimonial count is large, but volume alone proves little. What makes it useful is that the collection is searchable, so you can filter for your own course and sector rather than reading generic praise. The one review quoted in full on the page comes from Graham C., Learning & Development Manager at the Home Office, praising friendliness, quality and value. A public-sector client of that profile is a reasonable signal for organisations with similar procurement and compliance expectations.

When you search the testimonials, look for:

• Reviews naming the specific course you are considering, not just the provider
• Comments on post-course application — did the attendee change how they work?
• Sector matches to your own organisation
• Any recurring criticism, which is often more informative than praise

What the site does not substantiate

The published material gives no independent audit, accreditation body or third-party certification behind the percentages, and no methodology for how objectives are measured or how recommendation is surveyed. There is also no pricing information on the page, so cost cannot be weighed against quality from the site alone — you would need to request a quote or check the booking pages. None of this undermines the claims, but it means the figures should be read as marketing statements supported by a large, browsable feedback archive rather than as verified performance data.

A practical way to assess the provider before committing

1. Match the course first. Confirm the specific course exists in the catalogue — the site lists 70+ courses across Excel, MS Office, Power BI, Copilot/ChatGPT and AI, professional development, management, and sales and customer service.
2. Search the testimonials for that course name and your sector, and read a sample of ten or more rather than the first few.
3. Ask about the metrics. Request how training objectives are set and measured, and what "transparent quality control" involves in practice.
4. Confirm the delivery format and date guarantee for the specific course you want, since the never-cancelled commitment is stated for public courses.
5. Request pricing for your format — public, online or on-site — as it is not published on the page.

If the testimonial search returns relevant, specific feedback for your course and sector, and the provider can explain how its objectives are assessed, the reported figures are consistent enough to justify booking. If the feedback for your course is thin or generic, ask for references from comparable clients before committing.

STL Training offers instructor-led courses in four main areas: Microsoft Excel (from introduction to VBA and financial modelling), wider MS Office and Microsoft 365 applications, AI tools such as Copilot and ChatGPT, and professional development including management, leadership, and sales/customer service. Courses are delivered face-to-face or online, in London, across the UK, and internationally. The site states that public courses are never cancelled and that 99.26% of training objectives are met.

Excel courses

The Excel catalogue is the deepest on the site, covering both general skills and specialist finance work:

• Core levels: Introduction, Intermediate, Advanced, Advanced – Formulas & Functions, and Advanced – For Power Users
• Data and analysis: Charting, Forecasting & Data Analysis, PivotTables, PowerPivot
• Automation and modelling: VBA Introduction, VBA Intermediate, VBA Advanced, Financial Modelling, and Excel for Finance Professionals

This range suits anyone progressing from basic spreadsheet use to building models or automating reports. If you are unsure where to start, the level names map fairly directly onto prior experience: Introduction assumes little or no Excel use, while the Advanced – For Power Users and VBA courses assume regular, hands-on use.

MS Office and Microsoft 365

Beyond Excel, the site lists courses in:

• Power BI
• MS Copilot
• PowerPoint, Access, Word, MS Project, Visio, Outlook and Teams
• Microsoft 365 and SharePoint

These are listed as separate course topics rather than one combined package, so you can book the specific application you need. Power BI sits alongside the Excel data courses, which is useful if your reporting work spans both tools.

AI and Copilot courses

The AI offering includes:

• Introduction to Microsoft 365 Copilot
• Copilot for Advanced Users
• Microsoft Copilot Explained
• Microsoft Copilot Engage
• Microsoft Copilot Champions
• ChatGPT for Busy Decision Makers
• ChatGPT for Professionals

The Copilot courses are tiered from introductory to champion-level, so the choice depends on whether you are new to the tool, using it daily, or expected to support colleagues. The ChatGPT courses are aimed at decision makers and professionals rather than developers.

Professional development, management and sales

The site lists 70+ professional development courses and 50+ management courses. Named examples include:

The full catalogue is browsable by category on the site, which is the quickest way to confirm a specific course and its scheduled dates before booking.

How to choose

Start with the outcome you need: a specific application skill (pick from the Excel, MS Office or AI lists), a management or interpersonal capability (pick from the management and professional development lists), or customer-facing skills (sales and customer service). Then check the course level against your current experience and look at the public schedule for dates. For teams, the site also advertises on-site training, which may suit groups needing the same skills at once.

stl-training.co.uk offers three main ways to take a course: public scheduled instructor-led training (attended either face-to-face or in an online classroom), on-site training for organisations, and self-directed browsing of course formats and dates through the site. Public courses are listed as "never cancelled," and the provider states delivery in London, UK-wide and in 85+ countries. To choose, decide first whether you are booking as an individual (public schedule) or for a team at your premises (on-site), then whether you want to travel to a classroom or join online.

The three delivery routes

The site presents face-to-face and online as parallel formats of the same instructor-led public courses, so the choice between them is mainly about location and travel rather than content. On-site is a separate arrangement aimed at organisations rather than individual bookings.

Course areas you can book into

The catalogue is broad — the site references "70+ courses" in professional development and "50+ courses" in management — so it helps to know which family your topic sits in before you look for dates.

• Excel and Power BI — Introduction through Advanced, plus specialised options such as Advanced Formulas & Functions, Charting, Forecasting & Data Analysis, VBA (Introduction to Advanced), PivotTables, PowerPivot, Financial Modelling and Excel for Finance Professionals.
• MS Office and Microsoft 365 — Power BI, Copilot, PowerPoint, Access, Word, MS Project, SharePoint, Outlook, Visio and Teams.
• Copilot, ChatGPT and AI — Introduction to Microsoft 365 Copilot, Copilot for Advanced Users, Microsoft Copilot Explained, Microsoft Copilot Engage, Microsoft Copilot Champions, and ChatGPT courses for busy decision makers and professionals.
• Professional development — Taking Minutes, Time Management, Organisational Skills, Negotiating Skills, Presentation Skills, Effective Communication Skills, and Building Confidence & Assertiveness at Work.
• Management and leadership — Introduction to Management, Managing Teams Remotely, Mentoring, Managing Change, Leadership Development, Motivating Skills and Stress Management.
• Sales and customer service — Customer Service Excellence and Account Management.

If your goal is a quick skills win, a single Excel or Copilot course fits; if you are aiming at embedded behavioural or performance change, the leadership and development programmes are the closer match.

Step by step: from deciding to booking

1. Confirm the format you need. Individual → public schedule (face-to-face or online). Team at your location → on-site.
2. Find your course family using the categories above, then open the course to check its level (Introduction, Intermediate, Advanced).
3. View dates and book through the public schedule for scheduled courses. The site's navigation includes a Schedule section alongside Courses and Formats.
4. Check the format label on the date you pick — face-to-face and online classrooms are listed as distinct options.
5. For on-site or anything unclear, request a callback or call using the number published on the site (0207 987 3777). A callback form is also available.
6. Verify before committing that the date, format and level match your need; the site does not publish prices in the material reviewed, so confirm cost and any login or account requirements directly with the provider.

Expected result: a confirmed booking on a scheduled date, or an on-site arrangement agreed with the provider.

What the provider claims, and how to weigh it

The site publishes several quality signals: 99.26% of training objectives met, 98.3% customer recommendation, "transparent quality control maximises ROI," and 109,332 searchable testimonials. A quoted review from a Learning & Development Manager at the Home Office describes friendly service and high-quality training. These are the provider's own figures and customer quotes — useful as a starting point, but check the searchable testimonials for your specific course and level rather than relying on the headline numbers.

Common sticking points

• Assuming online means self-paced. The site describes online delivery as instructor-led online classrooms on the public schedule, not recorded self-study.
• Booking on-site through the public schedule. On-site is a separate organisational arrangement; use the contact or callback route.
• Overlooking level. Excel and VBA run from Introduction to Advanced, and Copilot has both introductory and advanced-user courses — picking the wrong level is the most avoidable mismatch.
• Expecting published pricing. The reviewed material contains no price information, so treat cost as something to confirm with the provider before you commit.