top of page
Consultancy for World Thinkers

Pelumbra Ltd

About
ABOUT US
Group talk.png

Artwork by Norah Claeys

Pelumbra Ltd is a consultancy practice that supports organisations (and activists within them) in making transitions towards more productive and sustainable ways of working.

The name Pelumbra is a made-up word combining light and shade. PEL is an astronomical term referring to ‘Peak of Eternal Light’ – a (so far) hypothetical place where the sun always shines, because it is near enough the poles of a planet to have almost no axial shift as the planet rotates, and has sufficient altitude to be above shadows cast by other objects. Some spots approaching this status have been identified on the moon, and others may exist on Mercury. In any case, ‘eternal’ is hyperbole – the light will last only as long as the sun – about another 10 billion years. But that’s probably long enough to represent the possibility of metaphorical ‘peaks of eternal light’ in human ideals.

Umbra, on the other hand, is latin for ‘shadow’, and implies lesser shades of shade such as penumbra and antumbra.

Pelumbra, therefore, suggests the conditions in which we live – more or less shadily, with an ideal of uninhibited illumination.

Upcoming Open Programmes

ONL Logo- white.png
One Planet Leadership: RoundTables for Experienced Managers

Online

7-11 April 2025

rydalhall068-2-w960-5ebaae9aba9f771ede60cc9cfa492fb4.jpg
Writing Retreat

Rydal Hall, UK

6-10 March 2025

Aerial w Landing Strip TB.JPG
Writing Retreat

Lambay Island, Ireland

11-15 September 2025

Affiliate Organisations and Institutes

Screen Shot 2017-07-18 at 13.08.42.png
csc_logo.png
logo.png
template_ilalogo.jpg
Screenshot 2019-11-25 at 11.00.07.png
Screenshot 2019-07-31 at 14.26.08.png
Screenshot 2019-07-31 at 15.43.49.png
Screen Shot 2017-07-18 at 13.07.28.png
Screenshot 2023-10-26 at 13.41.37.png
2018 McGill_IMHL logo.jpg
Screenshot 2019-07-31 at 15.13.34.png
image.png
logo-coaching-ourselves_1.png
logo-4.png
c_2375118594_9906_3288406469.jpeg
4e5a21b6664bc72f2310290a80bdb452.png
Screenshot 2019-07-31 at 15.13.47.png
logo-2.png
Contact
CONTACT
Get in touch for Programmes and Consultations

Thanks for getting in touch!

bottom of page