Tunnels & Tunnelling International
The First Choice for Tunnelling Professionals!
Since 1969, Tunnels & Tunnelling International (T&TI) has provided the global tunnelling sector with authoritative news, technical insight, and in-depth project coverage—maintaining an unparalleled standard for over half a century.
T&TI delivers a comprehensive record of everything shaping the underground construction world: from project announcements and planning, through key tender and bidding stages, to active construction updates and completion. Our editorial team ensures that subscribers remain well-informed, competitive, and forward-looking in a dynamic marketplace.
Our readership consists of a highly engaged core of civil engineering tunnelling professionals, representing all facets of the underground construction sphere: consultants, engineers, designers, contractors, and sector suppliers. With content covering transport, utilities, water conveyance, caverns, and more, T&TI captures every dimension of underground engineering and the companies driving progress.
Official Publication of the British Tunnelling Society (BTS)
T&TI is proud to be the official magazine of the British Tunnelling Society (BTS)—the UK’s only pre-eminent tunnelling association since 1971, and an essential source of industry influence and expertise. The BTS provides editorial support through T&TI’s international Editorial Advisory Board, comprising widely respected tunnelling authorities, who shape each issue and ensure sector relevance.
All BTS members are automatically included in the T&TI subscriber network, enabling exclusive access and fostering ongoing engagement. Their feedback and expertise continue to refine the direction and quality of our content with every edition.
Research and surveys confirm that Tunnels & Tunnelling International is the most highly regarded publication among industry decision makers—making it the clear choice to reach and influence the leaders of the tunnelling world.
Circulation and Distribution
2025 Audience
Tunnels & Tunnelling International (T&TI) continues to set the benchmark for industry engagement, with a robust core of paid subscribers and a thriving multimedia audience that reaches decision makers across the global tunnelling sector. Through strategic investment in our circulation, we ensure our content is delivered directly to the most influential professionals, regardless of where they work.
Our readers include the full spectrum of industry decision makers: consultants, engineers, designers, contractors, and manufacturers – specializing in equipment and materials. With our strong ties to the British Tunnelling Society (BTS), T&TI’s editorial is shaped and reviewed by an international committee of respected tunnelling experts
Geographical Breakdown

Weekly Newsletter
Every Thursday, the T&TI newsletter delivers the latest news, projects, and updates to 5,000 digital subscribers. The newsletter also features a streamlined digital edition of the magazine, ensuring our most vital content is always at readers’ fingertips.
LinkedIn Group & Social Reach
Our ‘Tunnels & Tunnelling’ LinkedIn group has grown to an exclusive network of 84,000+ tunnelling professionals, providing daily updates, industry polls, and sector engagement.
LinkedIn group post impressions: Averaging 1,200,000 per month

Twitter / X followers
Subscriber Base & Distribution
- Core paid magazine subscribers: All hard copies are dispatched by name, now primarily to subscribers’ home addresses so every edition reaches readers whether working remotely or in-office.
- Print subscribers: 8,000
- Digital subscribers: 5,500
- Digital newsletter subscribers: 12,000
Additional Distribution

Audience Overview
Our readers include the full spectrum of industry decision makers: consultants, engineers, designers, contractors, and manufacturers – specializing in equipment and materials. With our strong ties to the British Tunnelling Society (BTS), T&TI’s editorial is shaped and reviewed by an international committee of respected tunnelling experts
Editorial Calendar
T&TI offers the most comprehensive editorial coverage for the tunnelling and underground construction sector. This year will be running the following editorial focuses each month:
January
- Tech Focus : MECHANISED TUNNELLING
- Sector : Transport – Rail & Metro Tunnels
- Insight : Safety, Risk and O&M
February
- Tech Focus : DRILL & BLAST/ CONVENTIONAL
- Sector : Transport – Road Tunnels
- Insight : Circular, Sustainability
March
- Tech Focus : LININGS & WATERPROOFING
- Sector : Utilities/Trenchless Tunnelling
- Insight : Ground and Asset Investigations
April
- Tech Focus : SHAFTS & CAVERNS
- Sector : Power, Water & Storage
- Insight : Mucking out, Transport & Logistics
May
- Tech Focus : SOFT GROUND TUNNELLING
- Sector : Transport – Road Tunnels
- Insight : Education, Skills & Training
June
- Tech Focus : ROCK TUNNELLING
- Sector : Transport – Rail & Metro Tunnels
- Insight : Ground Stabilisation, Consolidation & Support
July
- Tech Focus : MECHANISED TUNNELLING
- Sector : Transport – Road Tunnels
- Insight : Project and Risk Management
August
- Tech Focus : DRILL & BLAST/ CONVENTIONAL
- Sector : Transport – Rail & Metro Tunnels
- Insight : Data, Digital, BIM
September
- Tech Focus : LININGS & WATERPROOFING
- Sector : Utilities/Trenchless Tunnelling
- Insight : Ground and Asset Investigations
October
- Tech Focus : SHAFTS & CAVERNS
- Sector : Power, Water & Storage
- Insight : Refurbishment, Renovation & Resilience
November
- Tech Focus : SOFT GROUND TUNNELLING
- Sector : Transport – Rail & Metro Tunnels
- Insight : Procurement & Contracts/ Finance & Insurance
December
- Tech Focus : ROCK TUNNELLING
- Sector : Transport – Road Tunnels
- Insight : Ground Stabilisation, Consolidation & Support



























