WITH comp AS
  (SELECT id AS company_id,
          NAME AS company_name
   FROM company
   WHERE milestones>6),
     rounds AS
  (SELECT id,
          company_id,
          raised_amount
   FROM funding_round
   WHERE EXTRACT(YEAR
                 FROM funded_at) BETWEEN 2012 AND 2013)
SELECT f.NAME AS name_of_fund,
       comp.company_name AS name_of_company,
       rounds.raised_amount AS amount
FROM investment AS i
JOIN comp ON i.company_id = comp.company_id
JOIN fund AS f ON f.id = i.fund_id
JOIN rounds ON rounds.id = i.funding_round_id