I joined a company on a graduate program with 4 other intakes, the company was fairly small at the time and had about 30 employees. They trained us up and were put on projects almost instantly after training. About 7-8 months after we joined, one of the intakes left to work for another company for a big rise in salary (8k-10k). About a month after he left he contacted me and stated there was a role for me at his new company with the same pay, after a quick phone interview i was offered the job (Interviewer knew me before hand so no need for face to face). The next day i went to hand my notice in but my director wouldn't take it and asked me to allow him the day to think about it.

At the end of the day he came back into the room and totally changed my mind. He told me that jumping around career at this early stage is a massive risk and could look bad on my CV as well as telling me the company is growing and if i stay i will be rewarded it will just take time. They gave me a 5k raise to stay and stay i did!

The company is now almost 100 people strong, just brought a brand new two floor custom built office and i am now earning 14k more than my starting salary was almost 3 years ago. I have a proper career structure and know exactly where i want to be in the next 5 years.

As for the other guy that left, he has had many small rises but no career support or good peers like i have.

TL;DR: Sometimes money isn't everything!