Key Insights
The Intelligent Pigging Market is experiencing robust growth, driven by the increasing need for efficient and cost-effective pipeline inspection and maintenance across various industries, including oil and gas, water, and chemicals. The market's expansion is fueled by stringent regulatory compliance mandates demanding regular pipeline integrity assessments to prevent leaks, environmental damage, and operational disruptions. Technological advancements in intelligent pigging tools, such as improved sensor technology and data analytics capabilities, are enhancing the accuracy and efficiency of pipeline inspections, further stimulating market growth. The rising adoption of advanced data analysis techniques enables predictive maintenance, reducing downtime and optimizing operational efficiency. While initial investment costs for intelligent pigging technology can be significant, the long-term cost savings associated with preventing catastrophic failures and minimizing environmental risks outweigh the initial expense. The market is segmented by pipeline type (diameter, material), application (oil & gas, water, chemicals), and technology (magnetic flux leakage, ultrasonic, caliper). Competition is moderately high, with established players such as Enduro Pipeline Services Inc., NDT Global Services Ltd., and others vying for market share through technological innovation and strategic partnerships.
The forecast period of 2025-2033 anticipates sustained growth, largely attributed to the ongoing expansion of global pipeline infrastructure, particularly in developing economies. However, factors such as the fluctuating prices of oil and gas, the high initial investment costs associated with implementing intelligent pigging technologies, and the potential for technological disruptions could pose challenges to market growth. Nevertheless, the market's long-term outlook remains positive due to the inherent value proposition of proactive pipeline maintenance and the increasing adoption of sophisticated inspection technologies. This continued growth necessitates a proactive approach from pipeline operators to ensure the safety and longevity of their infrastructure, driving sustained demand for intelligent pigging services.

Intelligent Pigging Market Report: A Comprehensive Analysis (2019-2033)
This in-depth report provides a comprehensive analysis of the Intelligent Pigging Market, encompassing market dynamics, growth trends, regional insights, product landscape, and key players. With a focus on the parent market of pipeline inspection and the child market of intelligent pigging technologies, this report offers valuable insights for industry professionals, investors, and strategic decision-makers. The study period covers 2019-2033, with 2025 as the base and estimated year. The forecast period is 2025-2033, and the historical period is 2019-2024. The market size is valued in millions of units.
Intelligent Pigging Market Dynamics & Structure
The Intelligent Pigging Market is characterized by moderate concentration, with several key players vying for market share. Technological innovation, particularly in sensor technology and data analytics, is a major driver of growth. Stringent regulatory frameworks regarding pipeline safety and environmental protection influence market dynamics. Competitive substitutes, such as traditional pipeline inspection methods, exert pressure. End-user demographics primarily comprise oil & gas companies, chemical manufacturers, and water utilities. Mergers and acquisitions (M&A) activity has been moderate, with xx deals recorded in the last five years.
- Market Concentration: Moderately concentrated, with top 5 players holding approximately xx% market share.
- Technological Innovation: Focus on advanced sensors, AI-driven data analysis, and improved pig design.
- Regulatory Landscape: Stringent safety regulations drive demand for reliable inspection technologies.
- Competitive Substitutes: Traditional inspection methods remain a competitive threat.
- End-User Demographics: Primarily oil & gas, chemicals, and water utilities.
- M&A Activity: xx deals over the past five years, indicating consolidation trends.
Intelligent Pigging Market Growth Trends & Insights
The Intelligent Pigging Market exhibits a steady growth trajectory, driven by increasing demand for enhanced pipeline safety and operational efficiency. The market size is projected to reach xx million units by 2033, exhibiting a CAGR of xx% during the forecast period. Adoption rates are increasing steadily, particularly in regions with aging pipeline infrastructure. Technological disruptions, such as the introduction of advanced sensor technologies and data analytics, are accelerating market growth. Shifts in consumer behavior, emphasizing sustainability and environmental responsibility, also play a role.

Dominant Regions, Countries, or Segments in Intelligent Pigging Market
North America currently holds the largest market share, driven by robust oil & gas infrastructure and stringent regulatory frameworks. Europe and Asia-Pacific are also significant markets, with growth fueled by investments in pipeline infrastructure and increasing awareness of pipeline safety. The oil and gas segment dominates market demand, owing to its extensive pipeline networks.
- Key Drivers in North America: Stringent regulations, significant oil and gas infrastructure.
- Key Drivers in Europe: Aging pipeline infrastructure, investments in pipeline upgrades.
- Key Drivers in Asia-Pacific: Growing energy demand, investment in new pipeline infrastructure.
- Dominant Segment: Oil & Gas accounts for approximately xx% of market share.
Intelligent Pigging Market Product Landscape
Intelligent pigging products encompass a range of technologies, including magnetic flux leakage (MFL) pigs, ultrasonic pigs, and caliper pigs. These pigs are equipped with advanced sensors that collect data on pipeline integrity, such as corrosion, cracks, and deformations. Technological advancements include the integration of wireless communication and data analytics capabilities for improved efficiency and accuracy. The unique selling propositions are improved safety, reduced downtime, and cost savings achieved through early detection of pipeline defects.
Key Drivers, Barriers & Challenges in Intelligent Pigging Market
Key Drivers:
- Increasing demand for pipeline safety and integrity management.
- Stringent regulatory requirements for pipeline inspections.
- Technological advancements leading to improved pig design and data analytics capabilities.
- Growing investments in pipeline infrastructure globally.
Challenges & Restraints:
- High initial investment costs associated with intelligent pigging technology.
- Complex logistics and operational challenges in deploying pigs across challenging terrains.
- Limited availability of skilled personnel for data interpretation and analysis.
- xx% of projects face delays due to supply chain disruptions, resulting in a xx million units loss annually.
Emerging Opportunities in Intelligent Pigging Market
- Untapped markets in developing economies with growing pipeline infrastructure.
- Growing adoption of data analytics and AI to optimize pipeline management.
- Development of advanced sensor technologies for enhanced detection of pipeline defects.
- Increased focus on sustainable solutions and reduced environmental impact.
Growth Accelerators in the Intelligent Pigging Market Industry
Technological breakthroughs, such as the development of more robust and reliable pigs with improved data acquisition capabilities, are significant growth catalysts. Strategic partnerships between technology providers and pipeline operators facilitate wider adoption. Expansion into new markets with growing pipeline networks and increasing awareness of pipeline safety further fuel market growth.
Key Players Shaping the Intelligent Pigging Market Market
- Enduro Pipeline Services Inc
- NDT Global Services Ltd
- Pigtek Ltd
- Romstar Group
- SGS SA
- A Hak Industrial Services B V
- PipeSurvey International
- Decon International Technologies
- Rosen Australia Pty Ltd
- Penspen Limited *List Not Exhaustive
Notable Milestones in Intelligent Pigging Market Sector
- January 2023: CDI introduces the Qube, a revolutionary above-ground monitoring (AGM) solution enhancing pipeline pig tracking efficiency.
- January 2022: KPTL secures a contract for a significant iron ore slurry pipeline project in Odisha, India, boosting demand for pigging services.
In-Depth Intelligent Pigging Market Market Outlook
The Intelligent Pigging Market is poised for robust growth, driven by sustained investment in pipeline infrastructure, stringent safety regulations, and technological innovation. Strategic opportunities lie in developing advanced data analytics capabilities, expanding into emerging markets, and forging strategic partnerships to further enhance market penetration and capture significant market share. The market is anticipated to show continued growth through 2033 and beyond, representing a lucrative opportunity for companies engaged in pipeline inspection and maintenance.
Intelligent Pigging Market Segmentation
-
1. Technology
- 1.1. Magnetic Flux Leakage Pigs
- 1.2. Caliper Pigs
- 1.3. Ultrasonic Pigs
Intelligent Pigging Market Segmentation By Geography
-
1. North America
- 1.1. United States
- 1.2. Canada
- 1.3. Rest of North America
-
2. Europe
- 2.1. Russia
- 2.2. United Kingdom
- 2.3. Norway
- 2.4. Italy
- 2.5. Rest of Europe
-
3. Asia Pacific
- 3.1. China
- 3.2. India
- 3.3. Australia
- 3.4. Malaysia
- 3.5. Indonesia
- 3.6. Rest of Asia Pacific
-
4. South America
- 4.1. Brazil
- 4.2. Argentina
- 4.3. Venezuela
- 4.4. Rest of South America
-
5. Middle East and Africa
- 5.1. Saudi Arabia
- 5.2. United Arab Emirates
- 5.3. Nigeria
- 5.4. Egypt
- 5.5. Iran
- 5.6. Rest of Middle East and Africa

Intelligent Pigging Market REPORT HIGHLIGHTS
Aspects | Details |
---|---|
Study Period | 2019-2033 |
Base Year | 2024 |
Estimated Year | 2025 |
Forecast Period | 2025-2033 |
Historical Period | 2019-2024 |
Growth Rate | CAGR of 6.07% from 2019-2033 |
Segmentation |
|
Table of Contents
- 1. Introduction
- 1.1. Research Scope
- 1.2. Market Segmentation
- 1.3. Research Methodology
- 1.4. Definitions and Assumptions
- 2. Executive Summary
- 2.1. Introduction
- 3. Market Dynamics
- 3.1. Introduction
- 3.2. Market Drivers
- 3.2.1. 4.; Upcoming Pipeline Projects4.; Increasing Focus on Pipeline Safety
- 3.3. Market Restrains
- 3.3.1. 4.; Upcoming Pipeline Projects4.; Increasing Focus on Pipeline Safety
- 3.4. Market Trends
- 3.4.1. Caliper Pigging Segment to Witness Significant Growth
- 4. Market Factor Analysis
- 4.1. Porters Five Forces
- 4.2. Supply/Value Chain
- 4.3. PESTEL analysis
- 4.4. Market Entropy
- 4.5. Patent/Trademark Analysis
- 5. Global Intelligent Pigging Market Analysis, Insights and Forecast, 2019-2031
- 5.1. Market Analysis, Insights and Forecast - by Technology
- 5.1.1. Magnetic Flux Leakage Pigs
- 5.1.2. Caliper Pigs
- 5.1.3. Ultrasonic Pigs
- 5.2. Market Analysis, Insights and Forecast - by Region
- 5.2.1. North America
- 5.2.2. Europe
- 5.2.3. Asia Pacific
- 5.2.4. South America
- 5.2.5. Middle East and Africa
- 5.1. Market Analysis, Insights and Forecast - by Technology
- 6. North America Intelligent Pigging Market Analysis, Insights and Forecast, 2019-2031
- 6.1. Market Analysis, Insights and Forecast - by Technology
- 6.1.1. Magnetic Flux Leakage Pigs
- 6.1.2. Caliper Pigs
- 6.1.3. Ultrasonic Pigs
- 6.1. Market Analysis, Insights and Forecast - by Technology
- 7. Europe Intelligent Pigging Market Analysis, Insights and Forecast, 2019-2031
- 7.1. Market Analysis, Insights and Forecast - by Technology
- 7.1.1. Magnetic Flux Leakage Pigs
- 7.1.2. Caliper Pigs
- 7.1.3. Ultrasonic Pigs
- 7.1. Market Analysis, Insights and Forecast - by Technology
- 8. Asia Pacific Intelligent Pigging Market Analysis, Insights and Forecast, 2019-2031
- 8.1. Market Analysis, Insights and Forecast - by Technology
- 8.1.1. Magnetic Flux Leakage Pigs
- 8.1.2. Caliper Pigs
- 8.1.3. Ultrasonic Pigs
- 8.1. Market Analysis, Insights and Forecast - by Technology
- 9. South America Intelligent Pigging Market Analysis, Insights and Forecast, 2019-2031
- 9.1. Market Analysis, Insights and Forecast - by Technology
- 9.1.1. Magnetic Flux Leakage Pigs
- 9.1.2. Caliper Pigs
- 9.1.3. Ultrasonic Pigs
- 9.1. Market Analysis, Insights and Forecast - by Technology
- 10. Middle East and Africa Intelligent Pigging Market Analysis, Insights and Forecast, 2019-2031
- 10.1. Market Analysis, Insights and Forecast - by Technology
- 10.1.1. Magnetic Flux Leakage Pigs
- 10.1.2. Caliper Pigs
- 10.1.3. Ultrasonic Pigs
- 10.1. Market Analysis, Insights and Forecast - by Technology
- 11. Competitive Analysis
- 11.1. Global Market Share Analysis 2024
- 11.2. Company Profiles
- 11.2.1 Enduro Pipeline Services Inc
- 11.2.1.1. Overview
- 11.2.1.2. Products
- 11.2.1.3. SWOT Analysis
- 11.2.1.4. Recent Developments
- 11.2.1.5. Financials (Based on Availability)
- 11.2.2 NDT Global Services Ltd
- 11.2.2.1. Overview
- 11.2.2.2. Products
- 11.2.2.3. SWOT Analysis
- 11.2.2.4. Recent Developments
- 11.2.2.5. Financials (Based on Availability)
- 11.2.3 Pigtek Ltd
- 11.2.3.1. Overview
- 11.2.3.2. Products
- 11.2.3.3. SWOT Analysis
- 11.2.3.4. Recent Developments
- 11.2.3.5. Financials (Based on Availability)
- 11.2.4 Romstar Group
- 11.2.4.1. Overview
- 11.2.4.2. Products
- 11.2.4.3. SWOT Analysis
- 11.2.4.4. Recent Developments
- 11.2.4.5. Financials (Based on Availability)
- 11.2.5 SGS SA
- 11.2.5.1. Overview
- 11.2.5.2. Products
- 11.2.5.3. SWOT Analysis
- 11.2.5.4. Recent Developments
- 11.2.5.5. Financials (Based on Availability)
- 11.2.6 A Hak Industrial Services B V
- 11.2.6.1. Overview
- 11.2.6.2. Products
- 11.2.6.3. SWOT Analysis
- 11.2.6.4. Recent Developments
- 11.2.6.5. Financials (Based on Availability)
- 11.2.7 PipeSurvey International
- 11.2.7.1. Overview
- 11.2.7.2. Products
- 11.2.7.3. SWOT Analysis
- 11.2.7.4. Recent Developments
- 11.2.7.5. Financials (Based on Availability)
- 11.2.8 Decon International Technologies
- 11.2.8.1. Overview
- 11.2.8.2. Products
- 11.2.8.3. SWOT Analysis
- 11.2.8.4. Recent Developments
- 11.2.8.5. Financials (Based on Availability)
- 11.2.9 Rosen Australia Pty Ltd
- 11.2.9.1. Overview
- 11.2.9.2. Products
- 11.2.9.3. SWOT Analysis
- 11.2.9.4. Recent Developments
- 11.2.9.5. Financials (Based on Availability)
- 11.2.10 Penspen Limited*List Not Exhaustive
- 11.2.10.1. Overview
- 11.2.10.2. Products
- 11.2.10.3. SWOT Analysis
- 11.2.10.4. Recent Developments
- 11.2.10.5. Financials (Based on Availability)
- 11.2.1 Enduro Pipeline Services Inc
List of Figures
- Figure 1: Global Intelligent Pigging Market Revenue Breakdown (Million, %) by Region 2024 & 2032
- Figure 2: North America Intelligent Pigging Market Revenue (Million), by Technology 2024 & 2032
- Figure 3: North America Intelligent Pigging Market Revenue Share (%), by Technology 2024 & 2032
- Figure 4: North America Intelligent Pigging Market Revenue (Million), by Country 2024 & 2032
- Figure 5: North America Intelligent Pigging Market Revenue Share (%), by Country 2024 & 2032
- Figure 6: Europe Intelligent Pigging Market Revenue (Million), by Technology 2024 & 2032
- Figure 7: Europe Intelligent Pigging Market Revenue Share (%), by Technology 2024 & 2032
- Figure 8: Europe Intelligent Pigging Market Revenue (Million), by Country 2024 & 2032
- Figure 9: Europe Intelligent Pigging Market Revenue Share (%), by Country 2024 & 2032
- Figure 10: Asia Pacific Intelligent Pigging Market Revenue (Million), by Technology 2024 & 2032
- Figure 11: Asia Pacific Intelligent Pigging Market Revenue Share (%), by Technology 2024 & 2032
- Figure 12: Asia Pacific Intelligent Pigging Market Revenue (Million), by Country 2024 & 2032
- Figure 13: Asia Pacific Intelligent Pigging Market Revenue Share (%), by Country 2024 & 2032
- Figure 14: South America Intelligent Pigging Market Revenue (Million), by Technology 2024 & 2032
- Figure 15: South America Intelligent Pigging Market Revenue Share (%), by Technology 2024 & 2032
- Figure 16: South America Intelligent Pigging Market Revenue (Million), by Country 2024 & 2032
- Figure 17: South America Intelligent Pigging Market Revenue Share (%), by Country 2024 & 2032
- Figure 18: Middle East and Africa Intelligent Pigging Market Revenue (Million), by Technology 2024 & 2032
- Figure 19: Middle East and Africa Intelligent Pigging Market Revenue Share (%), by Technology 2024 & 2032
- Figure 20: Middle East and Africa Intelligent Pigging Market Revenue (Million), by Country 2024 & 2032
- Figure 21: Middle East and Africa Intelligent Pigging Market Revenue Share (%), by Country 2024 & 2032
List of Tables
- Table 1: Global Intelligent Pigging Market Revenue Million Forecast, by Region 2019 & 2032
- Table 2: Global Intelligent Pigging Market Revenue Million Forecast, by Technology 2019 & 2032
- Table 3: Global Intelligent Pigging Market Revenue Million Forecast, by Region 2019 & 2032
- Table 4: Global Intelligent Pigging Market Revenue Million Forecast, by Technology 2019 & 2032
- Table 5: Global Intelligent Pigging Market Revenue Million Forecast, by Country 2019 & 2032
- Table 6: United States Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 7: Canada Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 8: Rest of North America Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 9: Global Intelligent Pigging Market Revenue Million Forecast, by Technology 2019 & 2032
- Table 10: Global Intelligent Pigging Market Revenue Million Forecast, by Country 2019 & 2032
- Table 11: Russia Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 12: United Kingdom Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 13: Norway Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 14: Italy Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 15: Rest of Europe Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 16: Global Intelligent Pigging Market Revenue Million Forecast, by Technology 2019 & 2032
- Table 17: Global Intelligent Pigging Market Revenue Million Forecast, by Country 2019 & 2032
- Table 18: China Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 19: India Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 20: Australia Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 21: Malaysia Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 22: Indonesia Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 23: Rest of Asia Pacific Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 24: Global Intelligent Pigging Market Revenue Million Forecast, by Technology 2019 & 2032
- Table 25: Global Intelligent Pigging Market Revenue Million Forecast, by Country 2019 & 2032
- Table 26: Brazil Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 27: Argentina Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 28: Venezuela Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 29: Rest of South America Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 30: Global Intelligent Pigging Market Revenue Million Forecast, by Technology 2019 & 2032
- Table 31: Global Intelligent Pigging Market Revenue Million Forecast, by Country 2019 & 2032
- Table 32: Saudi Arabia Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 33: United Arab Emirates Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 34: Nigeria Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 35: Egypt Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 36: Iran Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
- Table 37: Rest of Middle East and Africa Intelligent Pigging Market Revenue (Million) Forecast, by Application 2019 & 2032
Frequently Asked Questions
1. What is the projected Compound Annual Growth Rate (CAGR) of the Intelligent Pigging Market?
The projected CAGR is approximately 6.07%.
2. Which companies are prominent players in the Intelligent Pigging Market?
Key companies in the market include Enduro Pipeline Services Inc, NDT Global Services Ltd, Pigtek Ltd, Romstar Group, SGS SA, A Hak Industrial Services B V, PipeSurvey International, Decon International Technologies, Rosen Australia Pty Ltd, Penspen Limited*List Not Exhaustive.
3. What are the main segments of the Intelligent Pigging Market?
The market segments include Technology.
4. Can you provide details about the market size?
The market size is estimated to be USD XX Million as of 2022.
5. What are some drivers contributing to market growth?
4.; Upcoming Pipeline Projects4.; Increasing Focus on Pipeline Safety.
6. What are the notable trends driving market growth?
Caliper Pigging Segment to Witness Significant Growth.
7. Are there any restraints impacting market growth?
4.; Upcoming Pipeline Projects4.; Increasing Focus on Pipeline Safety.
8. Can you provide examples of recent developments in the market?
January 2023: CDI introduced the Qube, a groundbreaking device transforming the pipeline pig tracking approach. The Qube is an innovative, compact, and robust above-ground monitoring (AGM) solution specifically designed for the oil and gas industry. Its primary function is to detect the presence of pipeline pigs as they traverse the pipelines. Equipped with GPS and magnetic data sensors, the Qube offers remarkable capabilities, allowing it to identify up to eight frequencies of magnetic transmitters attached to the pipeline pigs. Additionally, it can detect MFL magnetizers. With its industrial-grade construction, the Qube ensures reliable performance in demanding environments. This revolutionary device is set to redefine and enhance the efficiency of pipeline pig tracking operations.
9. What pricing options are available for accessing the report?
Pricing options include single-user, multi-user, and enterprise licenses priced at USD 4750, USD 5250, and USD 8750 respectively.
10. Is the market size provided in terms of value or volume?
The market size is provided in terms of value, measured in Million.
11. Are there any specific market keywords associated with the report?
Yes, the market keyword associated with the report is "Intelligent Pigging Market," which aids in identifying and referencing the specific market segment covered.
12. How do I determine which pricing option suits my needs best?
The pricing options vary based on user requirements and access needs. Individual users may opt for single-user licenses, while businesses requiring broader access may choose multi-user or enterprise licenses for cost-effective access to the report.
13. Are there any additional resources or data provided in the Intelligent Pigging Market report?
While the report offers comprehensive insights, it's advisable to review the specific contents or supplementary materials provided to ascertain if additional resources or data are available.
14. How can I stay updated on further developments or reports in the Intelligent Pigging Market?
To stay informed about further developments, trends, and reports in the Intelligent Pigging Market, consider subscribing to industry newsletters, following relevant companies and organizations, or regularly checking reputable industry news sources and publications.
Methodology
Step 1 - Identification of Relevant Samples Size from Population Database



Step 2 - Approaches for Defining Global Market Size (Value, Volume* & Price*)

Note*: In applicable scenarios
Step 3 - Data Sources
Primary Research
- Web Analytics
- Survey Reports
- Research Institute
- Latest Research Reports
- Opinion Leaders
Secondary Research
- Annual Reports
- White Paper
- Latest Press Release
- Industry Association
- Paid Database
- Investor Presentations

Step 4 - Data Triangulation
Involves using different sources of information in order to increase the validity of a study
These sources are likely to be stakeholders in a program - participants, other researchers, program staff, other community members, and so on.
Then we put all data in single framework & apply various statistical tools to find out the dynamic on the market.
During the analysis stage, feedback from the stakeholder groups would be compared to determine areas of agreement as well as areas of divergence