Head Office writing to subsidiaries or local offices re problems caused by Covid?
Local HR personnel perhaps.

A suggestion,

Imo, it could mean they worked hand in hand with local actors that could be either local authorities, local NGOs, associations or education or health institution to name a few to support families during Covid.

For example could be medical expertise, psychological support, educational programs, ...

[...] partage des expériences précédentes de notre équipe d'experts basée à Paris, du tissu relationnel établi par nos relais locaux avec nos clients exportateurs et les agences d'assurance crédit, d'une part, et nos clients emprunteurs, d'autre part. ca-cib.fr

[...] the sharing of past experience of our expert team in Paris, of the relations built by our local teams with our exporting customers and with the credit insurance agencies, on the one hand, and with our borrowing customers, on the other.
ca-cib.com
https://www.linguee.com/french-english/translation/nos relai...

https://mdb-idf.org/category/nos-relais-locaux/page/45/



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Note added at 3 óra (2021-06-17 12:39:57 GMT)
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https://www.generations-futures.fr/nos-relais-locaux/

For “branch” and “local branch,” see the reference.

I'm thinking of sales reps. Pharmacies do HUGE business in France, with a great many products being reimboursed by the social security system.

...even though Sanofi has plenty of sites around the country, see:

https://www.sanofi.fr/fr/nous-connaitre/nos-sites-en-france