Koyama Construction Inc.
Plan context: Koyama Construction Inc. DBA Rdk Construction 401(K) Plan
EIN 56-2631941 • Lockeford, CA • 18 filings • 3 plans
Current Snapshot
Latest Year
2024
2024 Participants
10
2024 Assets
$1,475,374
2024 Contributions
$119,255
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
Company Timeline
Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.
| Year / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2024 | 1 | 10 | $1,475,374 | $119,255 | $11,926iApproximate average salary by contribution assumption: employee only about $298,138 at 4% or $198,758 at 6%; with 50% employer match about $198,758 at 4% or $132,506 at 6%; with 100% employer match about $149,069 at 4% or $99,379 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 10 | $1,475,374 | $119,255 | $11,926iApproximate average salary by contribution assumption: employee only about $298,138 at 4% or $198,758 at 6%; with 50% employer match about $198,758 at 4% or $132,506 at 6%; with 100% employer match about $149,069 at 4% or $99,379 at 6%. |
| 2023 | 1 | 10 | $1,346,849 | $122,395 | $12,240iApproximate average salary by contribution assumption: employee only about $305,988 at 4% or $203,992 at 6%; with 50% employer match about $203,992 at 4% or $135,994 at 6%; with 100% employer match about $152,994 at 4% or $101,996 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 10 | $1,346,849 | $122,395 | $12,240iApproximate average salary by contribution assumption: employee only about $305,988 at 4% or $203,992 at 6%; with 50% employer match about $203,992 at 4% or $135,994 at 6%; with 100% employer match about $152,994 at 4% or $101,996 at 6%. |
| 2022 | 1 | 12 | $1,097,007 | $128,980 | $10,748iApproximate average salary by contribution assumption: employee only about $268,708 at 4% or $179,139 at 6%; with 50% employer match about $179,139 at 4% or $119,426 at 6%; with 100% employer match about $134,354 at 4% or $89,569 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 12 | $1,097,007 | $128,980 | $10,748iApproximate average salary by contribution assumption: employee only about $268,708 at 4% or $179,139 at 6%; with 50% employer match about $179,139 at 4% or $119,426 at 6%; with 100% employer match about $134,354 at 4% or $89,569 at 6%. |
| 2021 | 1 | 13 | $1,671,853 | $135,990 | $10,461iApproximate average salary by contribution assumption: employee only about $261,519 at 4% or $174,346 at 6%; with 50% employer match about $174,346 at 4% or $116,231 at 6%; with 100% employer match about $130,760 at 4% or $87,173 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 13 | $1,671,853 | $135,990 | $10,461iApproximate average salary by contribution assumption: employee only about $261,519 at 4% or $174,346 at 6%; with 50% employer match about $174,346 at 4% or $116,231 at 6%; with 100% employer match about $130,760 at 4% or $87,173 at 6%. |
| 2020 | 1 | 12 | $1,836,341 | $134,373 | $11,198iApproximate average salary by contribution assumption: employee only about $279,944 at 4% or $186,629 at 6%; with 50% employer match about $186,629 at 4% or $124,419 at 6%; with 100% employer match about $139,972 at 4% or $93,315 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 12 | $1,836,341 | $134,373 | $11,198iApproximate average salary by contribution assumption: employee only about $279,944 at 4% or $186,629 at 6%; with 50% employer match about $186,629 at 4% or $124,419 at 6%; with 100% employer match about $139,972 at 4% or $93,315 at 6%. |
| 2019 | 1 | 10 | $1,474,155 | $80,042 | $8,004iApproximate average salary by contribution assumption: employee only about $200,105 at 4% or $133,403 at 6%; with 50% employer match about $133,403 at 4% or $88,936 at 6%; with 100% employer match about $100,053 at 4% or $66,702 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 10 | $1,474,155 | $80,042 | $8,004iApproximate average salary by contribution assumption: employee only about $200,105 at 4% or $133,403 at 6%; with 50% employer match about $133,403 at 4% or $88,936 at 6%; with 100% employer match about $100,053 at 4% or $66,702 at 6%. |
| 2018 | 1 | 10 | $1,172,395 | $94,212 | $9,421iApproximate average salary by contribution assumption: employee only about $235,530 at 4% or $157,020 at 6%; with 50% employer match about $157,020 at 4% or $104,680 at 6%; with 100% employer match about $117,765 at 4% or $78,510 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 10 | $1,172,395 | $94,212 | $9,421iApproximate average salary by contribution assumption: employee only about $235,530 at 4% or $157,020 at 6%; with 50% employer match about $157,020 at 4% or $104,680 at 6%; with 100% employer match about $117,765 at 4% or $78,510 at 6%. |
| 2017 | 1 | 9 | $1,158,141 | $104,438 | $11,604iApproximate average salary by contribution assumption: employee only about $290,106 at 4% or $193,404 at 6%; with 50% employer match about $193,404 at 4% or $128,936 at 6%; with 100% employer match about $145,053 at 4% or $96,702 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 9 | $1,158,141 | $104,438 | $11,604iApproximate average salary by contribution assumption: employee only about $290,106 at 4% or $193,404 at 6%; with 50% employer match about $193,404 at 4% or $128,936 at 6%; with 100% employer match about $145,053 at 4% or $96,702 at 6%. |
| 2016 | 1 | 10 | $1,016,129 | $98,088 | $9,809iApproximate average salary by contribution assumption: employee only about $245,220 at 4% or $163,480 at 6%; with 50% employer match about $163,480 at 4% or $108,987 at 6%; with 100% employer match about $122,610 at 4% or $81,740 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 10 | $1,016,129 | $98,088 | $9,809iApproximate average salary by contribution assumption: employee only about $245,220 at 4% or $163,480 at 6%; with 50% employer match about $163,480 at 4% or $108,987 at 6%; with 100% employer match about $122,610 at 4% or $81,740 at 6%. |
| 2015 | 1 | 10 | $868,573 | $111,483 | $11,148iApproximate average salary by contribution assumption: employee only about $278,708 at 4% or $185,805 at 6%; with 50% employer match about $185,805 at 4% or $123,870 at 6%; with 100% employer match about $139,354 at 4% or $92,903 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 10 | $868,573 | $111,483 | $11,148iApproximate average salary by contribution assumption: employee only about $278,708 at 4% or $185,805 at 6%; with 50% employer match about $185,805 at 4% or $123,870 at 6%; with 100% employer match about $139,354 at 4% or $92,903 at 6%. |
| 2014 | 1 | 10 | $790,041 | $87,840 | $8,784iApproximate average salary by contribution assumption: employee only about $219,600 at 4% or $146,400 at 6%; with 50% employer match about $146,400 at 4% or $97,600 at 6%; with 100% employer match about $109,800 at 4% or $73,200 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 10 | $790,041 | $87,840 | $8,784iApproximate average salary by contribution assumption: employee only about $219,600 at 4% or $146,400 at 6%; with 50% employer match about $146,400 at 4% or $97,600 at 6%; with 100% employer match about $109,800 at 4% or $73,200 at 6%. |
| 2013 | 1 | 9 | $699,720 | $88,781 | $9,865iApproximate average salary by contribution assumption: employee only about $246,614 at 4% or $164,409 at 6%; with 50% employer match about $164,409 at 4% or $109,606 at 6%; with 100% employer match about $123,307 at 4% or $82,205 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 9 | $699,720 | $88,781 | $9,865iApproximate average salary by contribution assumption: employee only about $246,614 at 4% or $164,409 at 6%; with 50% employer match about $164,409 at 4% or $109,606 at 6%; with 100% employer match about $123,307 at 4% or $82,205 at 6%. |
| 2012 | 1 | 11 | $576,885 | $94,460 | $8,587iApproximate average salary by contribution assumption: employee only about $214,682 at 4% or $143,121 at 6%; with 50% employer match about $143,121 at 4% or $95,414 at 6%; with 100% employer match about $107,341 at 4% or $71,561 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 11 | $576,885 | $94,460 | $8,587iApproximate average salary by contribution assumption: employee only about $214,682 at 4% or $143,121 at 6%; with 50% employer match about $143,121 at 4% or $95,414 at 6%; with 100% employer match about $107,341 at 4% or $71,561 at 6%. |
| 2011 | 1 | 12 | $497,324 | $94,070 | $7,839iApproximate average salary by contribution assumption: employee only about $195,979 at 4% or $130,653 at 6%; with 50% employer match about $130,653 at 4% or $87,102 at 6%; with 100% employer match about $97,990 at 4% or $65,326 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 12 | $497,324 | $94,070 | $7,839iApproximate average salary by contribution assumption: employee only about $195,979 at 4% or $130,653 at 6%; with 50% employer match about $130,653 at 4% or $87,102 at 6%; with 100% employer match about $97,990 at 4% or $65,326 at 6%. |
| 2010 | 1 | 15 | $455,912 | $71,096 | $4,740iApproximate average salary by contribution assumption: employee only about $118,493 at 4% or $78,996 at 6%; with 50% employer match about $78,996 at 4% or $52,664 at 6%; with 100% employer match about $59,247 at 4% or $39,498 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 15 | $455,912 | $71,096 | $4,740iApproximate average salary by contribution assumption: employee only about $118,493 at 4% or $78,996 at 6%; with 50% employer match about $78,996 at 4% or $52,664 at 6%; with 100% employer match about $59,247 at 4% or $39,498 at 6%. |
| 2009 | 1 | 16 | $334,765 | $93,975 | $5,873iApproximate average salary by contribution assumption: employee only about $146,836 at 4% or $97,891 at 6%; with 50% employer match about $97,891 at 4% or $65,260 at 6%; with 100% employer match about $73,418 at 4% or $48,945 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 16 | $334,765 | $93,975 | $5,873iApproximate average salary by contribution assumption: employee only about $146,836 at 4% or $97,891 at 6%; with 50% employer match about $97,891 at 4% or $65,260 at 6%; with 100% employer match about $73,418 at 4% or $48,945 at 6%. |
| 2008 | 1 | 15 | $192,179 | $123,161 | $8,211iApproximate average salary by contribution assumption: employee only about $205,268 at 4% or $136,846 at 6%; with 50% employer match about $136,846 at 4% or $91,230 at 6%; with 100% employer match about $102,634 at 4% or $68,423 at 6%. |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 15 | $192,179 | $123,161 | $8,211iApproximate average salary by contribution assumption: employee only about $205,268 at 4% or $136,846 at 6%; with 50% employer match about $136,846 at 4% or $91,230 at 6%; with 100% employer match about $102,634 at 4% or $68,423 at 6%. |
| 2007 | 1 | 15 | $0 | $0 | - |
| Koyama Construction Inc. DBA Rdk Construction 401(K) Plan | - | 15 | - | - | - |