
California consultancy for workplace investigations, HR compliance, mediation and recruitment support for employers

HR consultancy giving small and medium employers compliance advice, audits and staff training

Constantine Human Resource Consulting, LLC is an HR advisory firm owned and run by Stephanie Constantine. Since 2006 it has helped employers stay legally compliant and improve how they manage staff, acting as an on-call HR resource for firms without a full-time HR manager.
The firm mainly serves small and medium-sized companies, but also trains organisations of every size. MAAS Aviation, a long-standing client, has used it for more than seven years.
Profile written by TrustList from the business's own published information, Sep 2026.
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