A) Congrats on being in 1 job for so long, I don't know a lot of people who managed to start out and stick it out for that long in one place from the get go.
B) The respect I feel above, is potentially the same that an employer will feel for you when you go to interview. It's also possible they won't respect the achievement, but that's ok, if you get an interview, they will have the chance to talk to you about the work you have done and make up their own minds.
How do you get about job hunting?
Just like the rest of us, you just throw your CV at recruiters. Apply on your local job hunting websites and check the website of any business you like the looks of, or have had any dealings with and you think you might like to work for.
Two schools of thought
1) Quantity: You can throw CV's at a thousand different jobs and see who bites (careful, sometimes that's literal).
2) Quality: Find businesses that you want to work for, tailor your cover letter (I don't think I can say tailor your CV, so your cover letters going to have to be your primary hook) and tell them why you want to change from your existing job, to working for them. This can be tough, and getting no feedback is pretty tough when you take the quality path, but it can also pay off with better quality work or a better chance to interact with the potential employer.
Your unique situation
So the most unique thing about your situation is probably the length of your CV. I'm guessing you can fit it on 1 page? Well bulk it out a little, breakdown the last 10 years into the different roles you filled in the company, or if there were no changes in your role, break it down by years and show off what you learned/achieved in those years.
Talk a little more about your hobbies, and any volunteering that you've done. Show that you have interests and passions that align with the job's you're applying for.
If you get to 3 pages, that's pretty good (in my culture, may be different for yours), do up an awesome covering letter, and you have yourself a CV to be proud of.