Unfortunately, no. If you are covered under your spouse's employer group plan, you are not eligible to participate in your company's ICHRA.
The Individual Coverage HRA requires employees and their dependents to be enrolled in individual health insurance for each month the employee and their family members are reimbursed through ICHRA, meaning it must be secured through the individual market.
To learn more, read our blog titled, "Will ICHRA reimburse employees on a spouse's plan?"