| # | Title | Name | Town/City | S/C/P | Region | Comment | Date |
|---|---|---|---|---|---|---|---|
| 551 | Prof. | Andreas Mittermayer | N/G | N/G | N/G | N/G | May 12, 2013 |
| 552 | Mag | Sigrid Sigmund | Wien | Österreich | Austria | N/G | May 12, 2013 |
| 553 | N/G | Susanne Delpos | N/G | N/G | N/G | N/G | May 12, 2013 |
| 554 | Mag. | Gabriela Breindl | N/G | N/G | N/G | N/G | May 12, 2013 |
| 555 | N/G | Anonymous | N/G | N/G | N/G | View | May 12, 2013 |
| 556 | N/G | Monika Janits | N/G | N/G | N/G | N/G | May 12, 2013 |
| 557 | N/G | Anonymous | N/G | N/G | Austria | N/G | May 12, 2013 |
| 558 | Dr. | Edelgund Nussbaumer | N/G | N/G | Austria | View | May 12, 2013 |
| 559 | N/G | Brigitte Blochberger | Schwarzau | Austria , NÖ | Austria | N/G | May 12, 2013 |
| 560 | N/G | Karl Hanzalek | Pressbaum | NÖ | N/G | View | May 12, 2013 |
| 561 | DI | Christiane Hannauer | N/G | N/G | Austria | N/G | May 12, 2013 |
| 562 | N/G | Sabine Gschießl | N/G | N/G | Austria | N/G | May 12, 2013 |
| 563 | N/G | Peter Klaus | Waidhofen an der Ybbs | Niederöxrg8sterreich | Austria | N/G | May 12, 2013 |
| 564 | N/G | Barbara Körber | N/G | N/G | Austria | N/G | May 12, 2013 |
| 565 | Mag. | Gabriele Vollmer | N/G | N/G | N/G | N/G | May 12, 2013 |
| 566 | N/G | Anonymous | N/G | N/G | Austria | N/G | May 12, 2013 |
| 567 | N/G | Klemens Hager | Gallneukirchen | N/G | Austria | N/G | May 12, 2013 |
| 568 | N/G | Veronika Gusenbauer | St. Georgen | Österreich | N/G | N/G | May 12, 2013 |
| 569 | Ms | Birgit Heinrich | N/G | N/G | Austria | N/G | May 12, 2013 |
| 570 | N/G | Julia Pichlhöfer | Graz | N/G | Austria | N/G | May 12, 2013 |
| 571 | N/G | Helga Pichlhöfer | Bad Erlach/ FÖHRENAU | Austria | N/G | View | May 12, 2013 |
| 572 | N/G | Maria Zauner | N/G | N/G | Austria | N/G | May 12, 2013 |
| 573 | N/G | Alois Kocarnik | N/G | N/G | N/G | N/G | May 12, 2013 |
| 574 | Ms | Martina Parzer | N/G | N/G | N/G | N/G | May 12, 2013 |
| 575 | Mag. | Ulrike Bancher | Vienna | Austria | Austria | N/G | May 12, 2013 |
| 576 | N/G | Birgit Lampert | Hatting | N/G | N/G | N/G | May 12, 2013 |
| 577 | Ms | Anonymous | N/G | N/G | N/G | View | May 12, 2013 |
| 578 | DSP | Andrés Crespín | N/G | N/G | N/G | N/G | May 12, 2013 |
| 579 | MA | Peter Groißböck | N/G | N/G | N/G | N/G | May 12, 2013 |
| 580 | N/G | Thomas Ladstätter | N/G | N/G | N/G | N/G | May 12, 2013 |
| 581 | Mag.art. | Peter Martin Lackner | Salzburg | N/G | N/G | N/G | May 12, 2013 |
| 582 | N/G | Kurt Deixler | Wien | N/G | Austria | N/G | May 12, 2013 |
| 583 | Mag | Anonymous | N/G | N/G | Austria | N/G | May 12, 2013 |
| 584 | Mag. | Christoph Hödl | St. Pölten | NÖ | Austria | N/G | May 12, 2013 |
| 585 | Mag.art. | Elke Thron | Bad Sauerbrunn | A, Bgld. | Austria | N/G | May 12, 2013 |
| 586 | Ms | Anna Alexieva | Wien | Österreich | N/G | N/G | May 12, 2013 |
| 587 | N/G | Herbert Hofer | N/G | N/G | Austria | N/G | May 12, 2013 |
| 588 | Mr | Thomas Ehn | Wien | N/G | N/G | N/G | May 12, 2013 |
| 589 | N/G | Sigrid Urban | N/G | N/G | N/G | N/G | May 12, 2013 |
| 590 | N/G | Elisabeth Zeinhofer | N/G | N/G | N/G | N/G | May 12, 2013 |
| 591 | N/G | Mihaela Anica | N/G | N/G | N/G | N/G | May 13, 2013 |
| 592 | N/G | Michael Obernberger | N/G | N/G | N/G | N/G | May 13, 2013 |
| 593 | Dr | Katja Mitteregger | N/G | N/G | N/G | N/G | May 13, 2013 |
| 594 | N/G | Markus Holzmaier | Bregenz | Vorarlberg | Austria | N/G | May 13, 2013 |
| 595 | N/G | Markus Mistelbacher | Hofamt Priel | N/G | N/G | N/G | May 13, 2013 |
| 596 | N/G | Maria Theresia Mistelbacher | Hofamt Priel | N/G | N/G | N/G | May 13, 2013 |
| 597 | Mag.art. | Johanna Stöffelmayr | N/G | N/G | N/G | N/G | May 13, 2013 |
| 598 | MBA | Heidi Schwaiger | N/G | N/G | Austria | N/G | May 13, 2013 |
| 599 | DI | Christoph Schön-Pigisch | N/G | N/G | N/G | N/G | May 13, 2013 |
| 600 | Mag. | Agnes Palmisano | Wien | N/G | Austria | N/G | May 13, 2013 |
- S/C/P - State, County or Province
- Dates displayed in the signature list are based on UTC/GMT
- Anonymous signatures signify people who have chosen not to display their names publicly
- A comment in gray indicates that the signer has hidden their comment from public view