What General Pump Company does

General Pump Company, founded in 1952 and headquartered in San Dimas, California, is a professional water well redevelopment and pump equipment contractor serving municipal water utilities, agricultural operations, industrial facilities, and construction developers across California and, since late 2024, the Midwest. The company operates through six integrated service lines: well development and rehabilitation, motor repair, pump rebuild and balancing, electrical services including VFD and SCADA support, on-site field diagnostics, and annual maintenance contracts, of which approximately 65 are held with major California water utilities and municipalities. Delivery is supported by in-house shop capabilities (precision machining, fabrication and welding, complete pump rebuilds, and parts inventory) across three California shops in San Dimas, Camarillo, and San Bernardino, plus a Midwest platform added through the October 2024 merger with Water Well Solutions of Wisconsin and Illinois.

Revenue is generated through three streams: recurring annual service contracts with municipalities and utilities (subscription-style), project-based field services billed per engagement (professional services), and hardware parts and equipment sales. Pricing is fully quote-based and customized by scope, with multi-year contract structures for the maintenance book. Customer acquisition is driven by enterprise field sales, a website quote-request funnel, direct emergency response (24/7), and industry workshops offering CEU-credited training to water well professionals. Since the 2022 partnership with Sylmar Group, which functions as GPC's parent holding company, the business has pursued a multi-region roll-up strategy, completing the Water Well Solutions merger in October 2024 and acquiring Legend Pump & Well Service in February 2025 to extend geographic reach and absorb local customer bases and technician bench.

Name

General Pump Company

Legal name

General Pump Company, Inc.

Website

https://genpump.com

Company type

Private

Founded year

1952

Operating status

Operating

Short description

General Pump Company is a California-based water well redevelopment and pump equipment contractor serving municipal utilities, agriculture, industrial, and construction clients with well, motor, pump, electrical, and field services backed by in-house machining across three shop locations.

Ownership category

akta.pro rank

Product category

Water Well and Pump Services

NAICS

Water Supply and Irrigation Systems (22131), Water and Sewer Line and Related Structures Construction (23711), Pump and Compressor Manufacturing (33391)

SIC

Pumps & Pumping Equipment (3561), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Water Supply (4941)

akta.pro primary industry

Design & Engineering for Renewal/Expansion (Pipelines, Pump Stations, Treatment Plants) (EUANALAD)

akta.pro secondary industries

Pump, Well & Booster System Service for Irrigation (HSAIAEAI), Pump Systems & Pumping Stations (Surface, Submersible, Booster) (AFAAACAC), Pump Stations, Lift Stations & Booster Stations Construction (IMAFAGAD)

Keywords

• Water well services
• Pump equipment services
• Water infrastructure maintenance
• Pump rebuild and overhaul
• Municipal pump services

Headquarters

HQ city

San Dimas

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Service Contracts: Annual maintenance and service contracts with water utilities and municipalities providing recurring revenue. GPC holds 65+ annual maintenance contracts with major water utilities and municipalities across California.
2. Project-Based Services: Water well development, pump installation, motor repair, electrical services, and field services billed per project. Includes emergency repair services and planned maintenance projects.
3. Parts and Equipment Sales: Sale of pump components, motors, and replacement parts including impellers, bowls, wear rings, diffusers, bearings, seals, column pipe, and lineshaft sections.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

General Pump Company installs, rehabilitates, and maintains commercial water well and pump infrastructure for municipal water utilities, agricultural operations, industrial facilities, and construction companies across California. The company delivers well development and redevelopment, in-house pump and motor rebuilds, electrical services (VFDs, MCC, SCADA), on-site field diagnostics, and 24/7 emergency response from three California shop locations (San Dimas, Camarillo, San Bernardino), supported by an extensive parts inventory and precision machining/fabrication capabilities.

Product overview

General Pump Company is a professional water well redevelopment and pump equipment contractor offering a unified portfolio of service modules. The core offering consists of six integrated service areas: Well Services (development, rehabilitation, videography, and testing), Motor Services (submersible and vertical motor repair), Pump Services (complete rebuild and balancing), Electrical Services (motor controls, VFD, SCADA), Field Services (on-site diagnostics and repairs), and Annual Maintenance Contracts (65+ planned maintenance agreements). These services are supported by in-house shop capabilities including Precision Machining, Fabrication & Welding, Pump Rebuild & Overhaul, and Parts & Inventory across three California locations (San Dimas, Camarillo, San Bernardino). The company also offers Workshops & Seminars with CEUs for professional development. In 2024-2025, GPC expanded through acquisitions of Legend Pump & Well Service (February 2025) and Water Well Solutions (October 2024).

Differentiator

Problem solved

Functional benefit

Products and services

• Well Services Full-service water well development and redevelopment for municipal, agricultural, industrial, and construction clients, including well rehabilitation, downhole videography, casing installation and grouting, specific capacity and step drawdown testing, aquifer pump testing, and well destruction and abandonment.
• Motor Services Submersible and vertical motor repair services including motor teardown and inspection, winding repair and replacement, bearing replacement, shaft straightening, insulation resistance and load testing, vertical hollow shaft motor service, reinstallation and startup, and emergency motor replacement sourcing.
• Pump Services Complete pump rebuild and balancing services covering vertical, submersible, and split case horizontal pumps, including full teardown and rebuild, impeller precision balancing, bowl and column assembly, wear ring and diffuser replacement, shaft straightening, pump performance testing, and new pump supply and installation.
• Electrical Services Motor controls and electrical systems services including variable frequency drive (VFD) installation and service, motor control center (MCC) work, pump station electrical panel installation, SCADA and telemetry system support, power quality and load analysis, troubleshooting and diagnostics, and code-compliant wiring and conduit work.
• Field Services On-site diagnostics and field repairs including emergency pump pull and reset, hydraulic performance and efficiency testing, surge block and air development, downhole video inspection, on-site mechanical repairs, pump and motor set and plumb, and valve, column, and discharge head service, with field technicians available on a 24/7 basis.
• Annual Maintenance Contracts Multi-year planned maintenance and service contracts covering approximately 65 active agreements with California water utilities and municipalities, including scheduled pump and motor inspections, annual performance testing and reporting, predictive maintenance planning, lubrication, alignment and bearing service, priority response for contract clients, multi-site contract management, and compliance documentation.
• Precision Machining In-house precision machining services using full-sized lathes, milling machines, drill presses, CNC horizontal lathes, and vertical turret lathes, including shaft turning, straightening, and keyway cutting, impeller trimming and balancing, bowl and diffuser machining, seal and bearing seat machining, custom sleeve and bushing fabrication, and flange facing and thread repair.
• Fabrication and Welding Custom fabrication and welding services including discharge head and well seal fabrication, pump base plate and support structure welding, pipe spool fabrication, MIG/TIG/stick welding in steel and stainless, column pipe cutting, threading, and coupling installation, and custom bracket and adapter fabrication.
• Pump Rebuild and Overhaul Complete pump rebuild and overhaul services from teardown through reassembly including full component-level inspection, wear ring, bowl and diffuser replacement, impeller reconditioning, column pipe and lineshaft replacement, packing and mechanical seal replacement, and post-rebuild performance testing with detailed inspection reporting.
• Parts and Inventory Stocked parts and inventory services with an extensive in-house inventory of wear parts, bearings, seals, and components including impellers, bowls, wear rings, diffusers, bearings, seals, packing, column pipe, lineshaft sections, and common submersible motors from manufacturers such as Goulds, Berkeley, and Grundfos.
• Workshops and Seminars Expert-led professional development training for water well professionals offering Continuing Education Units (CEUs), including the Well Design, Construction and Rehab Workshop and the Water Well and Pump Engineering: System Efficiencies and Resiliency seminar.

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered major and core.

• Legend Pump & Well ServicemajorStrategic or Co-development Partner · 1 February 2025General Pump Company acquired Legend Pump & Well Service, a San Bernardino-based water well and pump services company founded in 2010 by Keith Collier. The acquisition supports GPC's geographic expansion into Riverside and San Bernardino Counties. The entire Legend team continues as GPC employees maintaining service from the San Bernardino branch.
• Water Well SolutionsmajorStrategic or Co-development Partner · 1 October 2024General Pump Company acquired Water Well Solutions of Wisconsin and Illinois in October 2024. The merger enables both companies to grow using combined resources and technology while Water Well Solutions maintains operational independence. The deal expands GPC's water service operations into the Midwest.
• Sylmar GroupcoreStrategic or Co-development Partner · 1 January 2022In 2022, General Pump Company partnered with Sylmar Group, a mission-driven organization focused on stewardship of water as a critical natural resource. Sylmar Group is the parent company of GPC, providing strategic backing and connecting GPC with sister companies operating across the country.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Hydro Resources: US-based water well drilling and pump service contractor with a multi-decade track record serving municipalities, irrigation districts, and industrial clients. Comparable service portfolio to GPC.
• Cascade Drilling: Multi-state US water well drilling and pump services company serving municipal, agricultural, and industrial customers. Closely aligned with GPC's service mix and customer base.
• National Water Services, Inc. Provider of water well drilling, pump installation, and maintenance services to utilities and agricultural customers in the western US. Direct overlap with GPC's core offering.

Broad incumbents

• Xylem Inc. Global water technology major owning Goulds Water Technology and other pump brands with a substantial services and aftermarket business. Overlaps with GPC at the equipment brand and services layer but operates at vastly larger scale with a much broader portfolio.
• Flowserve Corporation: Global pump and flow control manufacturer with a large installed-base service business for industrial and municipal customers. Touches GPC's pump rebuild and service market from the OEM and aftermarket side.
• Layne Christensen (Granite Construction): One of the largest US water well drilling and pump services contractors; acquired by Granite Construction in 2018. Directly comparable to GPC in municipal well and pump services, but operates at national scale as part of a broader infrastructure conglomerate.

Regional players

• Southwest Pump & Drilling: Water well drilling and pump services provider in the southwestern US, with comparable municipal, agricultural, and industrial customer mix to GPC.
• Best Drilling and Pump, Inc. California-based water well drilling and pump services company serving the Central Valley and surrounding regions. Direct overlap with GPC's California service territory and customer segments.

Others

• Roscoe Moss Company: Manufacturer of water well casing and screen products serving municipal and agricultural well contractors. A supplier to GPC's category and a comparable long-tenured specialist in the same well services ecosystem.
• MWH Global (Stantec): Global water infrastructure engineering and consulting firm acquired by Stantec. Adjacent to GPC as a designer and program manager for the same municipal water customers, though not a direct service contractor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/general-pump-company-inc

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about General Pump Company