Photo credits

Sources and licences for the stock photography used on the MSA Horizon website, including Unsplash, Wikimedia Commons and Flickr images.

• hero, blueprint, site-team, general-contracting, mep, glass-works, material-supply, excavator, earthworks, truck, pipes, rebar (iron binding), cranes-skyline

  Unsplash · Unsplash License · Source

• firefighting

  WordPress Photo Directory · CC0 · Source

• welding, lathe

  rawpixel · CC0 / Public Domain · Source

• porta-cabin – Portakabin, 8 September 2025

  Wikimedia Commons · CC0 · Source

• bobcat – Case skid-steer loader, Arlington MA

  Wikimedia Commons · CC0 · Source

• wheel-loader – Komatsu WA500

  Wikimedia Commons · CC0 · Source

• ammonia – Chevron El Segundo refinery

  Wikimedia Commons · Public Domain · Source

• heavy-transport – 65 Ton Lowboy Trailer

  Wikimedia Commons · Public Domain · Source

• hvac – photo by MTAPhotos

  Flickr · CC BY 2.0 · Source

• ductwork – photo by MTA C&D – East Side Access

  Flickr · CC BY 2.0 · Source

• pipe-insulation – Blue Grass Chemical Agent-Destruction Pilot Plant (PEO ACWA)

  Wikimedia Commons / Flickr · CC BY 2.0 · Source

• mobile-crane – photo by Kecko

  Flickr · CC BY 2.0 · Source