| Apr 2022 | Public Services and Procurement Canada | Other professional services not elsewhere specified | Non-competitive1 bid | $21,824 |
| Jul 2021 | Environment and Climate Change Canada | Scientific services | Non-competitive1 bid | $14,000 |
| Apr 2021 | Public Services and Procurement Canada | Other professional services not elsewhere specified | Non-competitive | $17,466 |
| Nov 2020 | Environment and Climate Change Canada | Scientific services | Non-competitive | $39,301 |
| Oct 2020 | Environment and Climate Change Canada | Scientific services | Non-competitive | $38,646 |
| Oct 2020 | Environment and Climate Change Canada | Scientific consultants | Non-competitive | $45,595 |
| Sep 2020 | Environment and Climate Change Canada | Scientific services | Non-competitive | $12,012 |
| Aug 2020 | Environment and Climate Change Canada | Scientific services | Non-competitive | $28,250 |
| Jan 2020 | Environment and Climate Change Canada | Scientific services | Competitive | $12,265 |
| Jan 2020 | Environment and Climate Change Canada | Scientific services | Non-competitive | $25,000 |
| Nov 2019 | Environment and Climate Change Canada | Scientific services | Non-competitive | $33,400 |
| Oct 2019 | Environment and Climate Change Canada | Scientific consultants | Non-competitive | $21,191 |
| Oct 2019 | Environment and Climate Change Canada | Scientific consultants | Non-competitive | $18,000 |
| Oct 2019 | Environment and Climate Change Canada | Scientific consultants | Non-competitive | $12,012 |
| Oct 2019 | Environment and Climate Change Canada | Scientific consultants | Non-competitive | $27,364 |
| Jun 2019 | Environment and Climate Change Canada | Scientific services | Non-competitive | $15,611 |
| Jun 2019 | Environment and Climate Change Canada | Scientific services | Non-competitive | $21,150 |
| May 2019 | Environment and Climate Change Canada | Scientific services | Non-competitive | $19,329 |
| Dec 2018 | Environment and Climate Change Canada | Scientific services | Non-competitive | $24,860 |
| Dec 2018 | Environment and Climate Change Canada | Scientific consultants | Non-competitive | $13,165 |
| Dec 2018 | Environment and Climate Change Canada | Scientific services | Non-competitive | $24,500 |
| Nov 2018 | Environment and Climate Change Canada | Scientific consultants | Non-competitive | $10,923 |
| Oct 2018 | Environment and Climate Change Canada | Scientific services | Non-competitive | $16,950 |
| May 2018 | Environment and Climate Change Canada | Scientific services | Competitive | $25,300 |
| Apr 2018 | Environment and Climate Change Canada | Scientific services | Competitive | $15,400 |
| Mar 2018 | Environment and Climate Change Canada | Scientific services | Non-competitive | $10,800 |
| Jan 2018 | Environment and Climate Change Canada | Scientific services | Non-competitive | $23,730 |
| Jan 2018 | Environment and Climate Change Canada | Scientific services | Non-competitive | $13,560 |
| Dec 2017 | Environment and Climate Change Canada | Scientific consultants | Non-competitive | $12,600 |
| Nov 2017 | Environment and Climate Change Canada | Scientific services | Non-competitive | $24,145 |
| Jan 2017 | Environment and Climate Change Canada | Scientific services | Non-competitive | $15,782 |
| Jan 2017 | Environment and Climate Change Canada | Scientific services | Non-competitive | $24,860 |
| Jan 2017 | Environment and Climate Change Canada | Scientific services | Non-competitive | $10,622 |
| Jun 2016 | Environment and Climate Change Canada | | — | $18,288 |
| Apr 2016 | Environment and Climate Change Canada | 0430 Scientific Services | — | $18,080 |
| Feb 2016 | Environment and Climate Change Canada | 0430 Scientific Services | — | $22,000 |
| Jan 2016 | Environment and Climate Change Canada | 0431 Scientific Consultants | — | $13,650 |
| Jan 2016 | Environment and Climate Change Canada | 0430 Scientific Services | — | $24,145 |
| Jan 2016 | Environment and Climate Change Canada | 0430 Scientific Services | — | $25,432 |
| Nov 2015 | Environment and Climate Change Canada | 0431 Scientific Consultants | — | $11,300 |
| Oct 2015 | Environment and Climate Change Canada | 0430 Scientific Services | — | $24,950 |
| Sep 2015 | Environment and Climate Change Canada | 0430 Scientific Services | — | $11,300 |
| Jun 2015 | Environment and Climate Change Canada | 0430 Scientific Services | — | $17,515 |
| May 2015 | Environment and Climate Change Canada | 0430 Scientific Services | — | $15,750 |
| Nov 2014 | Environment and Climate Change Canada | 1245 Safety and sanitation equipment and parts | — | $17,650 |
| Nov 2014 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $24,800 |
| Sep 2014 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $20,000 |
| Jun 2014 | Environment and Climate Change Canada | 0431 Scientific consultants | — | $10,000 |
| Apr 2014 | Environment and Climate Change Canada | 0431 Scientific consultants | — | $12,970 |
| Feb 2014 | Environment and Climate Change Canada | 0431 Scientific consultants | — | $20,000 |
| Nov 2013 | Environment and Climate Change Canada | 0859 Other business services, not elsewhere specified | — | $14,675 |
| Nov 2013 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $21,900 |
| Jan 2013 | Environment and Climate Change Canada | | — | $11,500 |
| Jan 2013 | Environment and Climate Change Canada | | — | $10,000 |
| Dec 2012 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $22,000 |
| Apr 2012 | Environment and Climate Change Canada | 0859 Other business services, not elsewhere specified | — | $14,600 |
| Jan 2012 | Environment and Climate Change Canada | | — | $12,000 |
| Jan 2012 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $22,000 |
| Aug 2011 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $9,000 |
| Apr 2011 | Environment and Climate Change Canada | | — | $9,500 |
| Dec 2010 | Environment and Climate Change Canada | 0819 Non-professional personal service contracts not elsewhere specified | — | $20,000 |
| Dec 2010 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $18,270 |
| Nov 2010 | Environment and Climate Change Canada | | — | $10,000 |
| Oct 2010 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $20,000 |
| Jan 2010 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $15,000 |
| Jan 2010 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $20,000 |
| Dec 2009 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $15,000 |
| Jan 2009 | Environment and Climate Change Canada | | — | $15,000 |
| Nov 2008 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $18,150 |
| Nov 2008 | Environment and Climate Change Canada | | — | $15,000 |
| Nov 2008 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $10,000 |
| Oct 2008 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $25,000 |
| Jul 2008 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $20,000 |
| May 2008 | Environment and Climate Change Canada | 0430 Scientific services, excluding consultants | — | $25,000 |
| Feb 2008 | Parks Canada | Scientific services | — | $15,820 |
| Jul 2007 | Parks Canada | Scientific consultants | — | $20,000 |
| Jan 2006 | Environment and Climate Change Canada | 0431 Scientific consultants | — | $9,500 |
| Jun 2005 | Parks Canada | Scientific consultants | — | $10,573 |
| Jun 2004 | Environment and Climate Change Canada | 0431 Scientific consultants | — | $24,500 |
| May 2004 | Environment and Climate Change Canada | 0431 Scientific consultants | — | $23,000 |