Companion chapters can assist by nominating researchers in developing countries for membership in Sigma Xi. Chapters can pay the membership dues for researchers in developing countries.
Chapters can also share scientific journals with researchers.
Sponsoring an exchange of graduate students is another activity companion chapters can undertake. Identity researchers in developing countries that would be interested in becoming Sigma Xi members and starting a Sigma Xi chapter in their country. Support the Young and International Scientists Fund. Meet with researchers and introduce them to Sigma Xi when traveling to a developing country. Translate Sigma Xi documents such as Sigma Xi's web site into languages other than English.