Two independent proxy firms have recommended that shareholders of Avangrid Inc (<a href="https://www.nyse.com/quote/XNYS:AGR" target="_blank">NYSE:AGR</a>) vote in support of the US energy services and delivery company’s agreed USD-2.55-billion (EUR 2.29bn) buyout by its largest shareholder, Spanish utility Iberdrola SA (<a href="https://www.bolsasymercados.es/bme-exchange/es/Mercados-y-Cotizaciones/Acciones/Mercado-Continuo/Ficha/Iberdrola-ES0144580Y14" target="_blank">BME:IBE</a>).