partner-contact/partner_noncommercial/views/res_partner.xml

<?xml version="1.0" encoding="utf-8"?>
<flectra>

    <record id="view_res_partner_filter" model="ir.ui.view">
        <field name="inherit_id" ref="base.view_res_partner_filter" />
        <field name="model">res.partner</field>
        <field type="xml" name="arch">
            <filter name="type_person" position="before">
                <filter
                    string="All partners"
                    name="type_contact"
                    domain="['|',('is_company','=',1),('type','=','contact')]"
                    />
            </filter>
            <!-- Default type_person also contains invoice and delivery
                 addresses for companies (and persons). -->
            <filter name="type_person" position="attributes">
                <attribute
                    name="domain"
                    >[('is_company','=',0),('type','=','contact')]</attribute>
            </filter>
            <filter name="type_company" position="attributes">
                <attribute name="string">Organisations</attribute>
            </filter>
        </field>
    </record>

</flectra>