Work with an Online Coaching Company that actually gives a fuck.

Cast Iron Strength Online coaching isn’t a one to many, cookie cutter take this plan I wrote 12 months ago and this ebook I shat out in 23 minutes kind of coaching experience.  Every single person that I work with has a different experience because everyone is a wonderful unique snowflake…. I mean we value an individualised approach because that’s what gets results!

And if we weren’t good at getting results then we wouldn’t be asking for you to part with your hard earned dollar, Bitcoin, pound sterling or whatever you wish to use as a store of value.


Who will I be working with?

My name is Marc Keys and I am as about as awesome as it is possible to be without violating the law [/humble brag].  If you want to learn more about me then check out the About section of the website.

What I am here to provide you is an online Coaching Experience, a lot of places will claim to be coaches but what they are in reality is a one to many regurgitations of the same information.  Look I am not going to claim that the principals of training or nutrition are going to change from one person to the next because they aren’t however what I do promise is that when we work together you will get my attention and expertise.

‘Marc was key in my development towards becoming a professional athlete, a springboard that ultimately lead to Olympic Gold. Marc takes pride in seeing his athletes progress. You know that his enthusiasm, commitment and drive matches up to your own. In addition, his wealth of knowledge and attention to detail makes him a great coach.’ Callum Skinner, GB Cycling, Gold and Silver Medalist 2016 Olympic games.


Click here to see if we can help.


What Problems can you help me with?

I can help to get you strong, not just strong but strong as fuck, I’m not a one trick pony but I do have a special trick and it’s called getting you gains like it’s going out of fashion.

I can help you get fitter or faster for your sport.

I can help you become more of a shredded, sick-cunt (good cunt obvs).


I Can help to un-fuck your technique here a recent addition to our roster.  Lifter Aaron Robertson showing only 4 weeks worth of technical input.   Lifting heavier weight at a lighter bodyweight.


Fire us an email to start the process of helping us help you.


I met Marc a couple of years ago when he joined Edinburgh Rugby. I had just broken my leg and was out of action for a couple of month’s rehabbing and training my upper body with Marc. He was instrumental in helping me strengthen my back and glutes which resulted in my chronic back ache disappearing. He was then tasked with helping me get back to match fitness through a combination of lower body strength and speed work as well as MAS running on the pitch. He has grown as a coach through his time with Edinburgh going from a world class lifting coach to being able to apply his knowledge to a rugby specific environment. A pleasure to work with. – Tim Visser, Scotland (31 caps), Barbarians, Harlequins, Edinburgh Rugby, Newcastle Falcons (3x Pro 12 top try scorer and young player of the year 2011).




What is offered in our online coaching package?

  • Work with a coach and not a cheer leader.  Cast Iron Strength is here to make you better not to make you feel better.
  • An individualised and perodised programme we take into account your goals and the time frames involved in those goals to come up with a realistic plan to enable you to achieve what it is you want to achieve.
  • A programme that adapts to your situation, unlucky and pick up a niggle or injury no hassle we will help you to work around your issues.
  • Help with every aspect of your training – planning, strength training, power, speed, sports specific planning, nutrition and constant technical feedback.
  • Communication via Watts app we utilise a mixture of IM, Video and voice feedback to ensure that you get the information you need in a way in which you can best understand it.
  • Have a one stop shop for all of your training and nutrition related queries and problems from a source you know you can trust to give you the low down on what works.

I worked a long side Marc in the Edinburgh University gym while I was at university. It is only in hindsight I realise how incredibly lucky I was to have Marc’s expertise guide me into strength training. It has no doubt saved me years of following rubbish advice and experiencing no progress.  My favourite thing about Marc’s approach to training is his no nonsense style. I’ve known Marc for over 5 years now and he consistently takes people and makes them strong(er). If strength is your goal I have full confidence in recommending Marc. – Emma Storey Gordan, ESG Fitness

Want to see what we have to say on exercise technique?  Click here to download our free manual on exercise technique for the key barbell lifts.

Frequently Asked Questions

How much do your services cost?

For our one to one coaching service, we charge £100 per month payable by subscription via PayPal or direct debit.  We are so sure in the value you will get from our service we don’t lock you into a contract and you are free to move away from us at any time.

Make an enquiry

How do I know if you can help me?

Talk to us and we can see if we would be a good fit.  Some people don’t like my personality and I hope you will get a sense of that from my content online.  There isn’t really a technical problem related to training that I can’t help with so Make an enquiry and we can start the conversation.

How quickly can I expect to hear back from you?

I endeavour to reply to all requests in 24 hours of the initial correspondence.

If you would like to work with me then please shoot me an email and let’s get started on making you better today.