B Cooke & Son Ltd – Location: Hull, UK • Tel: +44 (0)1482 223454 • Email: bcs@cooke.karoo.co.uk • Web: bcookeandson.co.uk

(Compass adjusters hold MCA certificates of competency and provide compass adjusting in most UK ports)

Seath Instruments (1992) Ltd – HQ: Lowestoft, UK • Tel: +44 (0)1502 573811 • Mob: +44 (0)7966 005357 • Email: info@seath-haztec.com • Web: seath-haztec.com

(Provides international MCA-approved compass adjusting with MCA-qualified compass adjusters and 24/7 worldwide service.)

John Lilley & Gillie (JLG Nautical) – UK base: North Shields, UK • Web: jlgmarine.com / jlgnautical.com

(UK base is home to qualified MCA compass adjusters; they also work closely with MCA training & certification and sit on the CNITA Compass Adjusters Certification panel)

North Navigational Services Ltd – Address: 37 Ormonde Avenue, Hull, UK • Tel: +44 (0)7710 792959 • Email: sylvester@northnavigationalservices.co.uk • Web: northnavigationalservices.co.uk

(Described as “fully qualified & MCGA certified Compass Adjusters”, serving all UK ports)

Poseidon Navigation Services Ltd – Address: Maritime House, Deskford, Cullen, Buckie AB56 5TR, UK • Tel: +44 (0)1542 841245 • Email: customerservices@poseidonnavigation.com • Web: poseidonnavigation.com

(Their services are provided by an MCA-qualified compass adjuster, closely involved with CNITA)

Adams Navigation Ltd – Petersfield, UK • Email: info@adamsnavigation.co.uk • Web: adamsnavigation.co.uk

(Described as “MCA certified Compass adjuster” and “Recognised by the MCA” for certified underway compass adjustment across the UK & beyond)

Aberdeen Compass Adjusting Ltd – 2 Menzies Park, Riverside of Blairs, Aberdeen AB12 5WJ, UK • Mob: +44 (0)7717 898085 • Web: aberdeencompassadjusting.com

(compass adjuster is “fully MCA certified”, an active CNITA member, with 24/7 availability for onboard compass adjustment)

Mills Navigation Ltd – Email: info@mnav.co.uk • Web: mnav.co.uk

(Marine consultancy which also provides Magnetic Compass Adjustment by MCA-qualified adjusters, with worldwide capability)

Robinsons Compass Adjusters – 1 St Andrews Building, Hamble, Southampton SO31 4JE, UK • Tel: +44 (0)7490 300600 • Email: mail@compassadjuster.co.uk • Web: compassadjuster.co.uk

(Listed in superyacht & marine directories and part of the professional compass-adjuster ecosystem that works to MCA standards.)

Novaco Navigation – Web: novaco.co.uk

(Listed by CNITA as providing “Nautical Instruments & Compass Adjusting”; CNITA notes that compass adjuster members have MCA certificates or equivalent local authority certification)