Key forces shaping the market include technological innovation—the shift toward fully automated, point‑of‑care immunochromatographic platforms that reduce turnaround time—and regulatory momentum, as agencies such as the FDA and EMA tighten guidelines for preventive screening. Consumer behavior also plays a pivotal role, with pet owners increasingly demanding comprehensive wellness packages that incorporate routine heartworm testing. Geographically, North America remains the largest market, anchored by the United States' extensive veterinary network, while the Asia‑Pacific region is emerging as the fastest‑growing market, propelled by rising disposable incomes and expanding pet care services in China, India, and Southeast Asia.