The other ex-Broadspectrum employee faces three charges of obtaining by deception and 12 charges of acceptance of gifts by agent.
On Wednesday at a hearing in the Auckland District Court, he argued for continued interim name suppression alongside two of the four subcontractors allegedly awarded the work.
The subcontractors face charges of giving gifts to agent without consent of principal and obtaining by deception.
One of the charged subcontracters, Richard Motilal, a director of Engineering & Aviation Supplies, did not seek further name suppression. Motilal is accused of making two bribes totalling about $54,212 in 2018, court documents state.
Judge Kevin Glubb described the group's alleged offending as an "elaborate scheme" and refused the bid for their continued anonymity, which had been opposed by the SFO's prosecutor Todd Simmonds.
However, the former Broadspectrum employee's lawyer, Jeremy Bioletti, indicated he would appeal the judge's ruling to the High Court. An interim suppression order was then made for Bioletti's client and other subcontractors for at least 20 working days to allow the legal challenge to be made.
Judge Glubb also said a future trial for the accused group would likely not be heard until the end of 2023.
Court papers released to the Herald reveal further details and the extent of the alleged corrupt venture.
The SFO's accusations against the second ex-Broadspectrum employee include accepting for himself and others more than $1.26 million in bribes.
His deception charges relate to 205 allegedly false invoices submitted to Broadspectrum which saw three other companies obtain a total of $4.48m, including one firm collecting $3.77m in 2017.
The case is due to return to court in June.
In 2017, the head of roading contracting business Projenz Stephen Borlase was jailed in what was New Zealand's largest bribery prosecution.
An investigation by the SFO found Borlase bought-off Auckland Transport and Rodney District Council officials, including Murray Noone and Barrie George, in exchange for contracts worth tens of millions of dollars between 2005 and 2013.
Just last month, a former Auckland District Health Board employee and a company director were accused of bribery and corruption in the procurement and supply of medical equipment.
And in 2020, former Auckland Council procurement relationship specialist Sundeep Dilip Rasila was sentenced to home detention after taking a $15,000 bribe and helping his long-time friend Sunil Chand secure a nearly $150,000 Chinese USB devices contract.
Chand was sentenced to community detention.