Accounting Firm

Alerex by LegalFiscal

Audit, accounting and tax practice formerly known as CERTIX, led by partner Leopoldo Montemayor

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TrustList summary

Alerex by LegalFiscal is an audit, accounting and tax practice, also listed as HLB Alerex S.C., that traces its roots to CERTIX, founded in 2002. Its managing partner, Leopoldo Montemayor, previously worked as an audit manager at Arthur Andersen. The firm's listings mention the Turks and Caicos Islands and the United States.

Services

Audit: planning and coordination of internal and external audit work teams.
Accounting: ongoing accounting for business clients.
Tax compliance: meeting clients' tax obligations on time through a dedicated department.

Key facts

Founded: 2002, as CERTIX
Partners: Leopoldo Montemayor (managing partner), Abel Salinas Martínez and Alma Cristina Gutiérrez
Network: HLB

Summary written by TrustList from the business's own published information, Sep 2026.

Gallery

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Categories & features

Rankings

Alerex by LegalFiscal is ranked on 1 TrustList ranking at #1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Alerex by LegalFiscal has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Accounting firm · 1 ranking

#1of 104
External
It is one of 11 here listing legal and one of 40 here listing accounting.
Its profile: “- Audit: planning and coordination of internal and external audit work teams.”
Of the top 59 here, 44 also cover tax and 40 also cover accounting; 5 also work in California and 2 also work in United States.
Behind Besemann Valentine CPA's, ahead of BHA Accountancy Services.

As of 2026-11-01. Organic ranks only; sponsored placements are never ranks. How TrustList ranks