• 資本しほん — capital
• 資料しりょう — materials / data
• 資源しげん — resources
• 資産しさん — assets
• 出資しゅっし — investment
• 投資とうし — investment
• 物資ぶっし — supplies / goods
• 資金しきん — funds

資 combines 貝 (shell/money) with 次 (phonetic). It originally referred to valuables or wealth and now broadly means resources, capital, or assets of any type.