While major law firms are enjoying record revenues — more than $100 billion last year — they are donating only a tenth of 1 percent of their proceeds for legal aid to low-income people, according to a new analysis released by The American Lawyer.

Such institutional giving now accounts for only 7 percent of total legal aid funding, which comes from federal, state and private sources, the publication said. Law firm giving is under pressure to give to clients’ charities and to law school alma maters, the analysis found.

Five law firms said they had given more than $1 million each last year to organizations that provide legal aid, but most firms were unwilling to disclose the exact amounts.

Four firms that agreed to disclose their legal aid donations were Kirkland & Ellis, which gave $2.6 million; Sidley Austin, with $2.1 million; Paul, Weiss, Rifkind, Wharton & Garrison, with $1.5 million, and Reed Smith, with $300,000. Paul, Weiss had the highest level of giving as a percentage of its revenue.