Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_15438337_1 (institution VARCHAR, country VARCHAR)
### Question:
Which company was based in London, United Kingdom?
### Answer:
SELECT institution FROM table_15438337_1 WHERE country = "London, United Kingdom"