Here is the official SW thread where we can discuss our applications for the 2015 recruitment cycle. I have put together a list below just to make things easier (going to keep this updated as applications open).

Bank of America Merrill Lynch:

http://campus.bankofamerica.com/get-started/Pre-Internships/?r=Europe, Middle East and Africa (Open Now)

Barclays:

http://joinus.barclays.com/emea/spring-programmes/

Credit Suisse:

https://www.credit-suisse.com/uk/en/careers/campus-recruiting/our-business/internship-programs-emea/outreach-programs.html (Open Now)

Deutsche Bank:

https://www.db.com/careers/content/en/spring_into_banking.html (Open Now)

Goldman Sachs:

http://www.goldmansachs.com/careers/students-and-graduates/our-programs/emea-programs/division-spring-internships.html (Open Now)

Citi:

https://www.citi.gtios.com/Vacancy/Search/PreLogonSearchPostedCriteria.asp (Open Now)

J.P. Morgan:

http://careers.jpmorgan.com/student/jpmorgan/careers/springweek (Open Now)

Morgan Stanley:

http://www.morganstanley.com/about/careers/programs/additionalinternship.html

UBS:

http://www.ubs.com/global/en/about_ubs/careers/graduate_and_intern/europe_middleeast_africa/ubs_insights.html (Open Now)

BNP Paribas:

http://graduates.bnpparibas.com/spring-insights/

HSBC:

http://www.hsbc.com/careers/students-and-graduates/programmes

ICAP:

http://www.icapcampusrecruitment.com/Programmes/Industry-Insight.aspx (Open Now)

Nomura:

http://www.nomura.com/europe/careers/insight_programs/explore-nomura-program.shtml (Open Now)

RBS:

https://www.rbsbankyoubuild.com/interns/spring-week (Open Now)

Rothschild:

http://www.rothschild.com/Careers/Spring_Programme/There's also a helpful guide written on SW applications, absolutely worth a read before you start applying: http://canarywharfian.co.uk/threads/how-to-get-a-spring-week-part-i.63/