FNS is cited in Band 3 of the leading firms in Dispute Resolution in the Philippines in the Chambers Asia Client's Guide 2010 Edition. Chambers Asia 2010 had this to say about the Firm "'already a sound choice for contentious work' ... Philip Sigfrid Fortun has a high profile and once acted on the Estrada impeachment proceedings. He is praised as 'an adept and methodical litigator'." Sig Fortun is also included in Band 2 of the Leading Individuals in this field of law.

FNS is likewise included in Band 2 of the leading firms in Natural Resources & Mining and is described as "this seven-partner firm has begun to receive greater recognition for its prowess in assisting some of the small and local mining entities in the market, including Mindoro. Clients of the firm include notable mineral and metal interests. Dicky Salazar is 'a fine leader of the mining practice,' sources say. Interviewees highlight his 'amiable nature and sound knowledge base, especially in mining transactional work.'" Dicky Salazar is among the Leading Individuals in Band 1 of the Natural Resources & Mining legal practice.