Is Eden Springs Israeli owned?

Yes.

Eden Springs UK Ltd was part of what was 'Danone Springs of Eden', a joint venture between Groupe Danone and Eden Springs Ltd (Mayanot Eden). In July 2007 Eden Springs Ltd took over full ownership.

Update:
In December 2007 Eden Springs Ltd (Mayanot Eden) announced that Och-Ziff Capital Management Group LLC is investing in their European company, now known as 'Springs of Eden', in return for 28% of the subsidiary. Eden Springs Ltd (Mayanot Eden) continues to own 72% of Springs of Eden.

Och-Ziff was founded by Daniel Och, who is currently the company Chief Executive Officer. Och is a billionaire (listed in Forbes magazine as one of the top 400 richest Americans), a philanthropist who is a main contributor to the Birthright Israel organisation - he is also on the board as treasurer of the organisation. Birthright Israel provides free trips to Israel for young Jews, with the purpose of making the next generation of pro-Israel Jews. Another main contributor to Birthright Israel is Ronald S Lauder, president of the Jewish National Fund in the US. Arial Sharon once said that Birthright Israel was "one of the most important contributions" to the state of Israel.