| De Piper Backhauske Legater - Fond CVR 11585078 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| SØREN DAUGAARD IVERSENS LEGAT CVR 11588476 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| LEGATET JER NU CVR 11595634 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| ELLA OG HOLGER ANDERSENS LEGAT CVR 11681506 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| AKSEL JENSEN AF RØNNES LEGAT CVR 11704549 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| Alving-Fonden CVR 11589898 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| SNEDKER CHR NIELSEN OG HUSTRUS LEGAT CVR 11613985 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| CHRISTEN LUNDEGÅRDS LEGAT TIL STØTTE FOR DANSK SKOLEARBEJDE I SYDSLESVIG CVR 11625878 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| SØREN RAHBEK SØNDERUPS OG HUSTRU CHRISTINE SØNDERUPS LEGAT CVR 11631843 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| OVERRETSSAGFØRER HOLGER BOECKS OG HUSTRU AGNES BOECKS LEGAT T FORDELFOR DANSKHEDEN I SØNDERJYLLAND CVR 11638171 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| SKOVRIDER EINER ULRICH OG HUSTRU FØDT KOFOEDS LEGAT CVR 11659101 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| SAGFØRER OG SPAREKASSEDIR AF THI- STED THOMAS THOMSEN & HUSTRU K M THOMSEN F. BAHRS LEGAT CVR 11698492 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| HØJSKOLEN ØSTERSØEN CVR 15756349 | BoardBoard of Directors | 2017 – 2019 | — | Active |
| PROPRIETÆR THOMAS GODT HØJRIS OG HUSTRU MARIE MAGDALENE GODT F BLICHERS MINDELEGAT FOND CVR 12902387 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| LØGUMKLOSTER OG OMEGNS CENTRALVASKERI A.M.B.A. CVR 18014114 | BoardDeputy Chairman | 1995 – 2002 | — | Dissolved |
| ABX 4444 ApS CVR 20535938 | BoardBoard of Directors | 2002 – 2003 | — | Dissolved |
| TELEGRAFBESTYRER LUDVIG HEINRICH CLAUDIUS OG HUSTRU CAROLINE CLAUDIUS FØDT ROOSES MINDELEGAT CVR 11659349 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| TØNDER DEPONI A/S CVR 32065791 | BoardChairman | 2009 – 2010 | — | Active |
| CENTRALVASKERIET A/S CVR 26013968 | BoardBoard of Directors | 2001 – 2002 | — | Dissolved |
| TØNDER FORSYNING A/S CVR 32065813 | BoardChairman | 2009 – 2010 | — | Active |
| GRÆNSELANDETS OPLYSNINGSFOND CVR 32653901 | BoardChairman | 2016 – 2020 | — | Active |
| Fonden Kunsthal Holmen Løgumkloster CVR 31129613 | BoardBoard of Directors | 2017 – 2025 | — | Active |
| INGEBORG OG THOMAS THOMSENS LEGAT CVR 11566847 | BoardBoard of Directors | 2017 – 2021 | — | Active |
| TØNDER SERVICE A/S CVR 32065805 | BoardChairman | 2009 – 2010 | — | Active |
| Røhsmindefonden CVR 32469175 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| TØNDER VAND A/S CVR 32065759 | BoardChairman | 2009 – 2010 | — | Active |
| TØNDER SPILDEVAND A/S CVR 32065767 | BoardChairman | 2009 – 2010 | — | Active |
| TØNDER AFFALD A/S CVR 32065783 | BoardChairman | 2009 – 2010 | — | Active |
| Frøken Marie Bangs Legat CVR 11942113 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| JENS ANDRESEN CVR 64385712 | OtherStakeholder | 1981 – 2018 | — | Active |
| Det Unge Grænseværn - Fond CVR 89366313 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| Fonden til Dybbøl Mølles Vedligeholdelse CVR 36293969 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| Inger Johanne Christensens fond CVR 29133824 | BoardBoard of Directors | 2017 – 2020 | — | Active |
| Løgumkloster Højskole S/I CVR 40638245 | BoardBoard of Directors | 2019 – 2021 | — | Active |
| BRDR. BROUSTS LEGAT TIL STØTTE FORDANSKHEDEN I SLESVIG CVR 11604579 | BoardBoard of Directors | 2017 – 2020 | — | Active |
