The European Chemicals Agency (ECHA) does not accredit or endorse companies providing advice or hands-on support to others on regulatory compliance. No companies can claim that they have been accredited by ECHA.
ECHA is making this statement in response to reports by third countries that EU legal or consulting companies are claiming to be accredited or somehow endorsed by ECHA, especially in the context of substance registration or SIEF formation. ECHA may have a contractual relationship with consultants and ask them to, for example, collect information on its behalf but does not accredit them.