~13,500
Historical Dynamics SL customer adoption
Source: Microsoft Dynamics historical disclosures
TL;DR
Key Takeaways
- Microsoft Dynamics SL is the legacy US/Canadian project-based services ERP from the Solomon Software heritage with approximately 13,500+ historical adopters.
- Microsoft announced no new major versions in 2022; security and US Payroll updates through October 2031 (extended support).
- BizzContacts maintains 3,200+ verified Dynamics SL records with 99% accuracy and 97.4% inbox deliverability.
- A/E firms account for ~32% of customers, construction ~22%, government contractors ~18%.
- Small and small-mid project-based services firms (50-249 employees) form ~50% of the install base.
- The Project Accounting Manager is uniquely Dynamics SL-aware and the highest-conversion specialized outbound entry point.
- United States accounts for ~92% of customers; Virginia and Maryland host the densest federal contractor cluster.
- Peak migration window: 2026-2029 with end-of-support October 2031.
By the numbers
Dynamics SL Install Base by the Numbers
Quotable statistics on the Dynamics SL install base, sourced from Microsoft Dynamics disclosures, Microsoft Partner case studies, and BizzContacts proprietary verification.
October 2031
SL end-of-support date
Source: Microsoft Lifecycle Policy 2022 announcement
~32%
Share of SL customers that are A/E firms
Source: BizzContacts industry analysis
3,200+
Verified BizzContacts Dynamics SL records
Source: BizzContacts Q1 2026 audit
~92%
Share of SL customers in the United States
Source: BizzContacts geographic analysis
97.4%
Inbox deliverability on BizzContacts Dynamics SL list
Source: Third-party audit, Q1 2026
Under 2.6%
Bounce rate, 30-day replacement guarantee
Source: BizzContacts SLA, 2026
5.7x
Reply rate vs generic SMB CFO list at SL end-of-support window
Source: BizzContacts customer benchmark, 2026
What is it
What Is the Microsoft Dynamics SL Customers List?
The Microsoft Dynamics SL customers list is a verified, regularly refreshed database of US and Canadian project-based services SMBs (typically 20-1,000 employees) running Solomon Software IV, SL 7.0, SL 2011, SL 2015, SL 2018, or SL 2018 CU2 in production, with named CFO, Controller, Project Accounting Manager, Director of Finance, Director of Government Contracting, and project-based services finance leadership at each account. Every record on the BizzContacts Dynamics SL list is tagged with the specific SL version in production, deployment model (on-premises predominantly), Industry module applied (Project Series, Federal Government Contracting/DCAA, Construction, Field Service, Distribution, Manufacturing), company firmographics, industry mix, employee count, Microsoft Partner (VAR) relationship, SL ISVs in production, DCAA compliance status for government contractors, A/E firm specialty type, and construction trade type.
The list feeds outbound prospecting for Microsoft Dynamics 365 Business Central migration services and Microsoft Partners (VARs) with Project ISV add-ons (PowerProject, Continia Project for Business Central, Encore Project Accounting), competing project-based ERP alternatives (Deltek Vantagepoint for A/E firms, NetSuite Project Accounting, Sage Intacct Construction and Real Estate, Acumatica Construction Edition, Unanet for government contractors), modern A/E firm ERP (Deltek Vantagepoint, BST10, Ajera by Deltek, Asana CAS for A/E firms), modern construction ERP (Sage 300 CRE/Timberline, Viewpoint Vista, Procore, Foundation Construction Accounting, Acumatica Construction Edition), modern government contractor ERP with DCAA compliance (Deltek Costpoint, Unanet, JAMIS Prime ERP), modern reporting and FP&A on SL data (Microsoft Power BI, Vena Solutions, BlackLine), and competing project-based services platforms targeting Dynamics SL displacement. Records ship with company firmographics, named decision-makers, and audit-trail metadata.
Sample contacts
Sample Microsoft Dynamics SL Decision-Maker Contacts
A scrolling preview of the kinds of decision-makers on the Microsoft Dynamics SL customers list, the IT, data, and line-of-business leaders at companies running Microsoft Dynamics SL.
Illustrative preview records with masked emails, not real individuals. Every delivered Microsoft Dynamics SL record is corporate-directory verified and ships unmasked.
02Top customers
What Companies are Using Microsoft Dynamics SL?
List of Companies That Use Microsoft Dynamics SL:
03Definition
Why a Dynamics SL Customer List Matters in 2026
The Microsoft 2022 announcement that no new major Dynamics SL versions would ship, combined with the published October 2031 end-of-support date, creates a multi-year forcing function on Dynamics SL customers. The 2026-2029 window is the peak migration activity window before customers face urgent 2030-2031 deadlines. SL customers face a particularly complex migration question because Business Central lacks SL's deep project accounting and DCAA depth out of the box, often requiring Project ISV add-ons or full migration to Deltek Vantagepoint, Unanet, or Sage Intacct Construction and Real Estate.
Dynamics SL bundled coverage is exceptional for SMB project-based services with deep Project Series, DCAA-compliant government contracting, construction industry workflows, and project profitability tracking. Depth gaps where specialist vendors regularly win include modern cloud-native project accounting with better UX, modern A/E firm ERP with embedded marketing and CRM, modern construction ERP with field-mobile depth, modern government contractor ERP with built-in DCAA, modern reporting on SL data, and competing modern cloud ERP targeting Dynamics SL displacement.
BizzContacts isolates the Dynamics SL install base as a separately filterable cohort so vendors can run focused outbound into project-based services CFOs, Controllers, Project Accounting Managers, and Directors of Government Contracting weighing the SL migration question.
04Adoption
Project-Based Services SMBs Running Dynamics SL
Dynamics SL concentrates in US and Canadian project-based services SMBs (20-1,000 employees) across architecture and engineering (A/E) firms (the defining SL vertical), construction and specialty trades, government contractors with DCAA-compliant cost accounting requirements, professional services and consulting firms, environmental consulting, IT services and managed service providers (MSPs), oil and gas services, infrastructure consulting, surveying and geomatics, project management consulting, defense contractors, federal government services firms, and other project-based services industries. The platform's exceptional Project Series depth, DCAA-compliant Federal Government Contracting module, construction industry workflows, multicompany capabilities, and the dense Microsoft Partner (VAR) network specializing in project accounting distinguish it from generalist legacy SMB ERP platforms.
Customer skew is small to mid-market (50-499 employees, approximately 64% of customer count) with strong presence at very small business (20-49 employees) and meaningful presence at mid-market (500-1,000 employees). Dynamics SL is rarely used above 1,000 employees, where customers traditionally migrated to Deltek Costpoint, Oracle E-Business Suite Project Accounting, or SAP Project Systems. Dynamics SL's customer base is approximately 92% US, 6% Canadian, 2% elsewhere, overwhelmingly North American.
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05Adoption
Dynamics SL Adoption by Industry
Dynamics SL concentrates in US project-based services SMB industries with project accounting, DCAA compliance, and multi-project profitability tracking needs.
A visual read of the adoption table above — longer bars mark the industries with the highest share of companies running Microsoft Dynamics SL.
Architecture and Engineering (A/E) Firms
Very High
Construction and Specialty Trades
Very High
Government Contractors (DCAA-required)
Very High
Professional Services and Consulting
Very High
Environmental Consulting
Very High
IT Services and MSPs (project-based)
High
Oil and Gas Services SMB
High
Infrastructure Consulting
Very High
Surveying and Geomatics
Very High
Project Management Consulting
High
Defense Contractors (sub-prime)
Very High
Federal Government Services Firms
Very High
Construction Engineering
Very High
Field Service Engineering
High
Forensic and Specialty Engineering
High
Architecture and Engineering (A/E) firms account for approximately 32% of Dynamics SL customer count, the densest vertical concentration. SL has historically been a top A/E firm ERP competing with Deltek Vision/Vantagepoint and BST10.
Construction and specialty trades account for ~22% of customers, with SL's Construction Industry module covering commercial general contractors and specialty trade firms.
Government contractors (federal, state, local) account for ~18% driven by SL's exceptional DCAA-compliant Federal Government Contracting module, one of SL's most defensible competitive moats.
Defense contractors (DoD prime and sub-prime) disproportionately adopt SL given DCAA cost accounting standards (CAS) compliance requirements that few competing SMB ERPs deliver out of the box.
Environmental consulting firms adopt SL heavily for project-based environmental work with complex billing arrangements (cost-plus, fixed-fee, T&M, milestone).
06Geo coverage
Dynamics SL Adoption by Country
Dynamics SL is overwhelmingly a US project-based services ERP with limited Canadian and minimal international presence.
The United States accounts for approximately 92% of Dynamics SL customer count, the most US-concentrated Microsoft Dynamics product alongside GP. SL is essentially a US project-based services ERP.
Canada accounts for approximately 6% of customers, with concentration in Toronto, Calgary, and Vancouver A/E firms and engineering consulting.
Solomon Software's Findlay OH heritage and Microsoft's North American Microsoft Partner network mean SL was never expanded internationally in any meaningful way.
Vendors targeting Dynamics SL customers should treat the list as a North American project-based services segment.
07US footprint
Dynamics SL Customers by US State
Dynamics SL US deployments concentrate in states with dense engineering, construction, and government contractor populations.
Virginia and Maryland together host the densest US Dynamics SL government contractor cluster anchored by Beltway federal contractors requiring DCAA-compliant cost accounting (ECS Limited, DRS Federal Services, and many others).
Findlay Ohio is the original Solomon Software heritage, with continued Ohio-area Dynamics SL Microsoft Partner concentration.
Houston Texas hosts Walter P. Moore (one of the largest A/E firm Dynamics SL references) and broader Texas engineering and oil and gas services SL cohort.
Lincoln Nebraska hosts Olsson Associates and the broader Plains-state agricultural engineering SL community.
08Segmentation
Dynamics SL Customer Size Distribution
Dynamics SL concentrates in US project-based services SMB with strongest density in 50-499 employee range.
A visual read of the size-distribution table above — longer bars mark the company-size bands with the highest share of companies running Microsoft Dynamics SL.
Very small (20-49 employees)
16%
Small (50-99)
24%
Small-mid (100-249)
26%
Lower mid-market (250-499)
18%
Mid-market (500-999)
12%
Upper mid-market (1,000+)
4%
Small and small-mid project-based services firms (50-249 employees) form the densest Dynamics SL cohort (~50%) and the highest-velocity outbound segment. Above 1,000 employees, customers traditionally migrated to Deltek Costpoint (especially government contractors), Oracle E-Business Suite Project Accounting, or SAP Project Systems.
09Buyer titles
Decision-Makers at Dynamics SL Customer Accounts
Dynamics SL buying decisions cluster around CFO, Controller, Project Accounting Manager, Director of Government Contracting, and project-based services finance leadership.
The Project Accounting Manager is uniquely Dynamics SL-aware (rare title at non-project-based-services accounts). Controller and CFO are highest-conversion for general ERP pitches. Director of Government Contracting for DCAA-focused pitches at federal contractors. Owner/Managing Principal at very small A/E firms. Director of Business Transformation for Business Central or competing project ERP migration pitches.
Reach these Microsoft Dynamics SL decision-makers this week.
Verified Microsoft Dynamics SL customer contacts with named CIO, ERP Manager, CFO, and procurement titles. 97.4% inbox deliverability.
10Tech stack
Technology Ecosystem Around Dynamics SL Customers
Dynamics SL customers run a predictable adjacent stack of Microsoft ecosystem products, project-based services tools, and SL ISV add-ons.
Compared
Dynamics SL vs Deltek Vantagepoint vs Deltek Costpoint vs Unanet vs Sage Intacct CRE
Dynamics SL and the four largest competing or migration-target project-based services ERP platforms compared by buyer focus and BizzContacts coverage.
Dynamics SL targets legacy on-premises project-based services with deep Project Series and DCAA. Deltek Vantagepoint dominates modern cloud A/E firm ERP. Deltek Costpoint dominates enterprise government contractor ERP. Unanet wins modern cloud government contractor and A/E. Sage Intacct CRE wins modern cloud construction.
11Benefits
Why Outbound Teams Use the Dynamics SL Customers List
Sell into project-based services CFOs and Project Accounting Managers
Dynamics SL end-of-support October 2031; peak migration window 2026-2029.
Pitch Deltek Vantagepoint and modern A/E firm ERP migration
Deltek and competing A/E firm ERPs target SL A/E firm customers.
Position Unanet and Deltek Costpoint for government contractors
Unanet, Deltek Costpoint target SL Federal Government Contracting customers.
Run modern construction ERP campaigns
Sage Intacct CRE, Acumatica Construction Edition, Viewpoint Vista target SL construction customers.
Pitch Microsoft Dynamics 365 Business Central with Project ISV add-ons
Microsoft Partners (VARs) target SL customers for Business Central migration with Project add-ons.
Event marketing for AIA, AGC, NDIA, and ENR events
Drive event engagement at A/E firm and construction industry events where SL customers concentrate.
Who buys this list
Which Businesses Can Use the Dynamics SL Customers List
Dynamics SL sits at the centre of project-based services finance, project accounting, DCAA-compliant government contracting, construction industry workflows, and A/E firm operations at thousands of legacy SL customers facing the October 2031 end-of-support deadline with peak migration activity 2026-2029. The buyers below are the most common purchasers of the BizzContacts Dynamics SL customers list.
01
A/E firm modern cloud ERP
Deltek Vantagepoint, Deltek Vision (transitioning), Ajera by Deltek, BST10 target SL A/E firm customers for modern A/E firm ERP migration.
Use case: Modern A/E firm ERP, embedded marketing CRM, project management, modern UX.
02
Government contractor modern cloud ERP
Deltek Costpoint, Unanet, JAMIS Prime ERP, NetSuite for Government Contractors target SL Federal Government Contracting customers.
Use case: Modern DCAA-compliant cloud ERP, enterprise federal contractor scale, modern compliance reporting.
03
Construction modern cloud ERP
Sage Intacct Construction and Real Estate, Acumatica Construction Edition, Viewpoint Vista (Trimble), Foundation Construction Accounting target SL construction customers.
Use case: Modern cloud construction ERP, mobile field workflows, AIA billing, retainage, certified payroll.
04
Microsoft Dynamics 365 Business Central with Project ISVs
Microsoft Partners (VARs) with Project ISV add-ons (PowerProject, Continia Project, Encore Project Accounting) target SL customers for Business Central migration.
Use case: Business Central migration with Project depth, Microsoft ecosystem preservation, Power Platform extensibility.
05
Project management modern platforms
Procore (construction PM), Smartsheet for project services, Asana CAS for A/E firms target SL customers extending project management.
Use case: Modern project management, construction tech, A/E project collaboration, mobile project workflows.
06
DCAA compliance and federal contractor specialty tools
JAMIS, ICAT, Capvidia, GovWin target SL Federal Government Contracting customers needing modern DCAA tools.
Use case: Modern DCAA compliance automation, indirect cost rate management, federal contract billing automation.
07
Modern reporting and FP&A on SL data
Microsoft Power BI, Vena Solutions, BlackLine, Dynamic Budgets target Dynamics SL customers needing modern reporting.
Use case: Modern financial reporting, business intelligence, dashboards, planning analytics for SL data.
08
Modern field service for engineering firms
ServiceTitan (trades), Jobber, FieldEdge, FieldAware target Dynamics SL Field Service customers running engineering field services.
Use case: Modern field service management, mobile dispatch, customer scheduling, field service finance.
If your product or service touches A/E firm ERP, government contractor ERP (DCAA-compliant), construction ERP, Microsoft Dynamics 365 Business Central with Project add-ons, project management, DCAA compliance tools, modern reporting, or field service management at a Dynamics SL-running organisation facing the October 2031 end-of-support deadline, the BizzContacts Dynamics SL list is the most direct path to qualified CFO, Controller, Project Accounting Manager, and Director of Government Contracting decision-makers.
12Buyer use cases
Why Businesses Purchase the Dynamics SL Email List
Project-based services title precision
CFO, Controller, Project Accounting Manager, Director of Government Contracting at SL accounts.
SL version filtering
Filter by Solomon IV, SL 7.0, SL 2011, SL 2015, SL 2018, SL 2018 CU2.
Industry module filtering
Filter by Project Series, Federal Government Contracting (DCAA), Construction, Field Service, Distribution, Manufacturing.
DCAA compliance filtering
Filter for federal government contractors with active DCAA-compliant SL deployments.
Project-based services industry filtering
Filter by A/E firm, construction, government contractor, professional services, environmental consulting.
Higher reply rates than generic SMB CFO lists
BizzContacts Dynamics SL records benchmark at 5.7x the reply rate of generic SMB CFO lists at the SL end-of-support window.
13Data dictionary
What Every Dynamics SL Record Includes
Every record on the BizzContacts Dynamics SL customers list ships with the following fields.
14Trust signals
Why BizzContacts for Dynamics SL Intelligence
Project-based services title precision
Data resolves to CFO, Controller, Project Accounting Manager, Director of Government Contracting at project-based services Dynamics SL accounts.
SL version tagging
Every record tagged with specific SL version, Industry module, and migration status.
DCAA compliance tagging
DCAA-compliant federal government contractor accounts tagged for DCAA-focused pitches.
A/E firm and construction specialty depth
Strong A/E firm and construction industry vertical coverage matching SL's defining concentration.
Hand-verified North American project services records
Every contact researched by a named analyst familiar with project-based services title structures.
97.4% inbox deliverability
Multi-step email verification on every record.
How we build the data
How the Dynamics SL Customers List Data Is Sourced
The BizzContacts Dynamics SL customers list is built from a multi-channel research pipeline focused on confirming Dynamics SL version, deployment model, employee count, industry, DCAA compliance status, Industry module, and Microsoft Partner (VAR) relationships, plus tagging each record with verified CFO, Controller, Project Accounting Manager decision-makers.
A record is shipped only when at least two independent sources confirm the Dynamics SL deployment and the decision-maker contact is verified by the research desk within the trailing 30 days.
Customer voice
What Outbound Teams Say About BizzContacts Dynamics SL Data
Project Accounting Manager is uniquely Dynamics SL-aware. BizzContacts gave us 850 A/E firm and government contractor SL accounts. Our reply rate jumped from 1.4% to 10.6%.
DCAA-compliant federal contractor filter on SL was a goldmine for our government contractor cloud ERP. We sourced 480 SL Federal Government Contracting accounts and closed nine pilots in 90 days.
Virginia and Maryland federal contractor cluster targeting was the differentiator. We could focus on Beltway DCAA-required SL customers precisely. 12 pilots in one quarter.
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15Quick answers
Dynamics SL Buyer Intelligence: Quick Answers
Short, direct answer blocks optimised for AI search engines and featured snippets.
Q: How many companies use Microsoft Dynamics SL?
A: Approximately 13,500+ US and Canadian project-based services SMBs adopted Microsoft Dynamics SL across its lifetime. BizzContacts verifies 3,200+ records currently in production or mid-migration.
Q: When is Dynamics SL end-of-support?
A: Microsoft announced in 2022 that no new major Dynamics SL versions would ship but committed to security updates and US Payroll year-end tax updates through October 2031 (extended support). This makes SL one of Microsoft's longest-supported legacy ERP platforms.
Q: What is Solomon Software?
A: Solomon Software was the original product name (developed by Solomon Software in Findlay, OH since 1980), acquired by Great Plains Software in 2000, then by Microsoft via the 2001 Great Plains acquisition. Renamed to Microsoft Dynamics SL in 2006.
Q: What is the SL Project Series?
A: Dynamics SL's defining product module, comprehensive project accounting covering project budgeting, time and expense entry, project billing (cost-plus, fixed-fee, T&M, milestone), revenue recognition, project profitability tracking, and project resource management. The Project Series is what makes SL uniquely strong vs Dynamics GP for project-based services firms.
Q: What is SL Federal Government Contracting?
A: Dynamics SL's specialized module providing DCAA-compliant cost accounting (CAS), indirect cost rate computation, federal contract billing, DCAA audit support, and federal government contract management for defense contractors and federal services firms.
Q: What is DCAA compliance?
A: Defense Contract Audit Agency (DCAA) compliance refers to cost accounting standards (CAS) and federal acquisition regulations (FAR) that federal government contractors must follow. Dynamics SL Federal Government Contracting module provides DCAA-compliant cost accounting making SL particularly strong for federal contractors.
Q: How does Dynamics SL compare to Deltek Vantagepoint?
A: Deltek Vantagepoint is the leading modern A/E firm ERP with deeper marketing CRM, project management, and modern UX. SL is legacy with deeper customization flexibility. Vantagepoint wins on modern UX and A/E-specific depth; SL wins on existing investments and Microsoft ecosystem.
Q: How does Dynamics SL compare to Deltek Costpoint?
A: Deltek Costpoint is the leading enterprise government contractor ERP. SL Federal Government Contracting targets mid-market federal contractors. Costpoint wins on enterprise scale and depth; SL wins on lower TCO and Microsoft ecosystem.
Q: How does Dynamics SL compare to Unanet?
A: Unanet is modern cloud-first government contractor ERP. SL is legacy on-premises. Unanet wins on modern cloud architecture; SL wins on existing customizations and Microsoft ecosystem.
Q: Who owns Dynamics SL?
A: Microsoft Corporation. Acquired Solomon Software via the 2001 Great Plains acquisition. Renamed product to Microsoft Dynamics SL in 2006. Microsoft announced no new major versions in 2022 with extended support through October 2031.
Q: What industries use Dynamics SL most?
A: Architecture and engineering (A/E) firms (defining vertical), construction and specialty trades, government contractors (with DCAA-required cost accounting), professional services and consulting, environmental consulting, IT services project-based, oil and gas services SMB, infrastructure consulting, surveying and geomatics, project management consulting, defense contractors, federal government services firms, construction engineering, field service engineering, forensic and specialty engineering.
Q: Where is the largest Dynamics SL install base?
A: United States accounts for ~92% of customers (with Virginia + Maryland federal contractor cluster particularly strong), Canada ~6%, other countries ~2%. SL is essentially a North American project-based services ERP.
Q: How accurate is the BizzContacts Dynamics SL list?
A: 99% record-accuracy SLA, 97.4% inbox deliverability, 30-day replacement guarantee.
Q: Can I filter by SL version?
A: Yes, by Solomon IV, SL 7.0, SL 2011, SL 2015, SL 2018, SL 2018 CU2.
Q: Can I filter by DCAA compliance status?
A: Yes, federal government contractors with active DCAA-compliant SL deployments are explicitly tagged.
16Search insights
People Also Ask About Dynamics SL Customers
17FAQ
Dynamics SL Customers List FAQs
18Full technology index
Every Technology Users Database Inside BizzContacts
Browse every install-base and technographic database BizzContacts maintains. Every link below points to a live BizzContacts landing page with verified customer records, decision-maker contacts, and buyer-center intel for that platform, updated on a continuous verification cycle.
139 technology users databases covered. Every entry links to a verified install-base landing page with buyer contacts.